Check Engine Light Car Shakes When Accelerating

Got back in and drove another 2 miles. For example, does it happen when you accelerating, driving on the highway or does it appear at low speeds? This will help your mechanic evaluate the issue. There is no code since the light stops flashing, plugged it in to. Now I feel the shaking only when I try to accelerate faster that normal, the shaking is very light. One of the most common problems that drivers experience is vehicle shaking. Leave a Reply Cancel. It is not that uncommon for the "check engine" light to serve as notice that a part needs attention. Well, as soon as the service engine light came on, there was an obvious lack of power. If you are comfortable doing basic checks under the hood, check if you have enough oil in the engine ( see how to check the oil level ), see if the battery terminals are tight, if the air filter box is closed properly. I let it sit for awhile, then went to drive it around the block to see if it happened again. The truck has the check engine light on, but when I start it and accelerate it I get a wrench warning light and it starts failing and loses power, and the AC stops working. not once did it show any check engine light or any other warnings. 8L 42,000 miles, no modifications, change feud filter at 30,000 mile when I push the gas pedal; I really have to mash it to get the car to accelerate, the Engine feels like it top out about 4000RPM, if you continue to push the pedal, the Engine Check Light will flash until you back off the gas, the dealer guy put in the. Went driving again and it stopped but soon the engine started shaking again but only while accelerating. The check engine light is generally amber or red in color, and has two stages, viz. It cranks and turns on, but the car shakes a lot when you press the pedal to accelerate. Determining the Causes of Vehicle Vibrations; Steering Wheel Vibrations; Isolating Brake Pulsations; Tire and Wheel Problems; Wheel Alignment, Loose Suspension Parts, and Vibrations; Vibrations at Idle, Engine Mounts; Driveline Vibrations; Rear Wheel Drive Vibrations; Other Vibrations; Vibrations Closing. 159900+ miles. (2000 Toyota Solara) The other day I was getting on the expressway and as I hit the gas to accelerate the engine hesitated and only accelerated at a very slow rateif I gave it too much gas it began to shake. Could be anything - throttle position sensor, oxygen sensor, CO2 sensor. Now the check engine light is on even after restart. If after a few days the CEL remains on you will need to read the codes. everytime i accelerat the ticking increases its pace and i can hear it. but it's still acting jumpy. i just took my car in at 79,777 miles and they replaced ta cat converter for free b/c of warranty, but charged me for turning the check engine light off and that was 105. The maintenance light is not the same as the check engine light. I hear this from customers all the time; they pull into the garage and say, "I need to have an alignment on my car because my steering wheel shakes when I drive. It also didn't appear to be leaking and fluids and it never ran hot. This car has never given me any issues before. had it towed to the dealership where it took them 2 days to replicate the problem and then it finally turned on the check engine light. Don't ignore Audi check engine light even if the car drives fine. When i press the throttle to accelerate during travelling, the car will jerk again, and does not accelerate instantly as normal. The maintenance light is not the same as the check engine light. The check engine light starts. hey guys i own a 05 limited without the nav ,,194k lately the car was stuttering and shaking only when i touch the acceleration pad and theres no sign of check engine at all ! ive been suffering from this for a whole month was too busy to take it to the dealer!!. Reasons Why Mazda Check Engine Light Is On. You're running a little late, but sitting in pole position at the last light before hitting your employee parking lot. Flashing check engine light/ stuttering/ shaking 1995 volvo Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine. Pull the coil packs and check for spark after the boots, check plugs, and try swapping coil packs around. (2000 Toyota Solara) The other day I was getting on the expressway and as I hit the gas to accelerate the engine hesitated and only accelerated at a very slow rateif I gave it too much gas it began to shake. So I parked for a few minutes checking the engine area which looked fine. If you have ever been driving and your check engine light came on, you likely had an instant reaction of panic followed by the question, “Why is the check engine light on in my new Chevy?” There can be a lot of things that can cause your check engine light to come on, but there are a few that are more common than others. While driving 45 mph, the speedometer displayed incorrect information. Car stops shaking when foot is taken off the - Answered by a verified Audi Mechanic We use cookies to give you the best possible experience on our website. What kinds of problems would cause the car to make a noise when accelerating?. The car is now completely loses acceleration around 3,000 RPM's and is smoking (white) worse than ever. It is a 2008 3. find a cure for my car. I did not notice any broken/deteriorated motor mounts. But its a small shake that you kinda notice, then, now my sports car doesnt have a nice sound like a sports car should sound, it now sounds a bit rough but again i thought it was the spark plugs and i changed 5 and i say it. 328i Engine shaking violenlty and check engine light This is the second time this has happened when driving. Is there a burning smell coming from your car? If you regularly check your vehicle’s transmission fluid and notice that the color of the fluid has become blackish and has a burnt smell to it, it is time to bring your vehicle in for evaluation. This is a rather dangerous. Now the check engine light is on even after restart. check engine light on, shakes, runs rough, loudly when i accelerate in the rec. The check engine light is not on. If a sound has just popped up, it could very well be an indication of a problem. If the mounts weaken or break, heavy vibration or shaking will be experienced. My engine. If you can scan your car, it will tell you what cylinder is the faulty. Not sure what's wrong any ideas?. Usually when an engine misfires under load it means the plug wires, coil wire or spark plugs are bad. so i get home do some research online then head back outside to check the car again since its cool down and of course the ticking is gone but the check engine light is still on. Typically a check engine light will appear if one of these intakes is blocked - remember, never ignore your check engine light, always bring it into a service center right away! Accumulated Moisture. Was on the highway in Over drive and my truck started to shake violently when I would accelerate slowly, around 1500 rpm. If I put it in neutral, it stops shaking. Feels like driving over reflector bumps in middle of the road. i had an issue with my check engine light before and had my ECM replaced about 3 months ago. Intermittent Check Engine Light: If the check engine light on your 2010 Sedona is intermittent, try to take note of the conditions when this happens. is it essential to replace with new, can i replce with used alos. You're driving along in your car and suddenly your Check Engine Light comes on. it will shift when it shouldn't and it idles high when i start it. But what seems to be the big deal when your car is jerking while driving?. Not a car guy. He is an ASE Certified Master Technician and has bruised knuckles to prove it. I went a head and got a tune up and replaced the spark plugs and the car seemed to be running smooth. I did not notice any broken/deteriorated motor mounts. 8L 42,000 miles, no modifications, change feud filter at 30,000 mile when I push the gas pedal; I really have to mash it to get the car to accelerate, the Engine feels like it top out about 4000RPM, if you continue to push the pedal, the Engine Check Light will flash until you back off the gas, the dealer guy put in the. A top sign that your car may need serious engine repair is when your car shakes as it idles at a stop. The tire light means low pressure in at least one tire. Worst case, if my check engine turns out to be a “chuck engine” light,. I stopped the car to look at the engine and it shakes like a mofo when idle. 159900+ miles. It runs like a new one. It reflects the driver , the LAUNCH Creader VII vehicle engine idling shake , the ” da da ” abnormal sound when accelerating. Only when I was in drive and accelerating it. Car was driving fine. In the past the check engine light seems to be tied to a squeaking sound whenever I start a cold engine. Its like the engine is not getting fuel, or something is wrong with a sensor for the computer. After hard acceleration, check engine light, bad If I'm on the freeway, or getting onto it, and I really floor it, the performance is fine but a few minutes afterwards, after driving at lower rpms, the car seems to go into limp mode (do the V8s do this?), the check engine light goes on, and if I come to a stop, the car idles at about 300 rpm. Common Problem: Bad Spark Plug or Ignition Coil. A road force machine will measure rim run out, (check for a bent rim) locate tire hard spots in a tire, check for broken belts in a tire, diagnose defective tires, and balance tires, it is truly the best machine for car shakes and vibrations in my opinion, so ask your mechanic if they have access to a Road Force Machine if you have a problem. And when I accelerate fast the light flashes again. Drove about 1 km, stopped for a red light and then the engine started sputtering, rpm up and down and eventually it shut down. While accelerating fast, car started shaking and check engine light started blinking Car is a 2008 passat 2. Cold morning around 36 degrees F. In some cases you need to pull over immediately to prevent damage while in others you merely need to tighten you gas cap next time you stop in order to reset the service engine soon light. But I can't give it much gas because it shakes more. Not sure what's wrong any ideas?. Check engine light has been on. a steady light and a flashing light. However, the "check engine" light can also be triggered by a number of minor issues. Make sure your engine’s getting the necessary amount of oxygen it needs to operate. Put a code reader on it, came back with P170. You may have to register before you can post: click the register link above to proceed. This system is operated by the electronic control module (ECM), which is your car's computer. Just this morning started to shake real bad off and on while driving. I stopped the car 10-15 min. Drove again and the light was off. If you feel the engine shaking, the crankshaft damper can be a factor to consider when diagnosing engine vibration causes. Now everything is fine. The car shakes hard at idle, and has very low power going from complete stop through the gears. The 'Check engine' light will turn on; Your car jerks when accelerating; The car's fuel efficiency will have dropped; A blocked catalytic converter is one of the most common reasons why a car jerks while accelerating. While accelerating fast, car started shaking and check engine light started blinking Car is a 2008 passat 2. The light is a warning light alerting you to a problem. So when the check engine light (CEL) in your car's instrument panel turns on, the ECU is putting out a signal that something has malfunctioned and is causing a problem. that fixed about 80% of the problem. 2 CL-S, Car shaking under acceleration Did you try the cylinder balance test as suggested and yes, a vehicle can 'miss' under a load and not cause a CEL. It also shakes a little during acceleration and when I accelerate harder, the check engine light. A light, non-metallic thud can be heard coming from the rear end while cruising at 25 mph, which can only be heard when it is quiet and no brakes are applied. Below are the top 7 causes of car shakes when idle, accelerating, driving, and braking. If it is a misfire then you are probably not burning the fuel that is going into the engine which means it is going into the exhaust which will quickly damage it and require replacement. I pulled over and turned my car off, took a look, and didn't see anything that looked out of the ordinary. The fluid on the dipstick doesn't look black or smell bad. If the engine has a misfire, then each time that cylinder fires it will cause the engine to run rough for a split second. I gave it some gas and the shaking stopped when the engine revved. Sometimes a shake or shudder will emanate from your car's engine, which could signal one of several problems. and DO NOT drive the car. Not sure if the exhaust is even related to the p. Average repair cost is $800 at 100,450 miles. trying to figure out why this is happening. It contains a thermostat arrangement and an electric heater element which forces the thermostat to gradually shut off the air supply. 6e hatchback) lost power (about 500rpm in a bursty rhythm) after I re-ignited on a traffic light, the engine started shaking, and I could smell liquid fuel. It is hard to tell you if you should drive it from there to here with the light on or not. It run much better now, Thanks for your help Mai **. A typical shake is a vibration that happens through the steering wheel. If your car requires major engine work, it may be more economical to have your engine rebuilt rather than buying a different car. You may have to register before you can post: click the register link above to proceed. A customer drove his Tiguan to my garage and told our technicians that the engine shaking when accelerating and EPC,OBD warning light on,then engine will be smooth when engine up to 2000r/min. Flashing check engine light/ stuttering/ shaking 1995 volvo Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine. Car Shaking and Jerking w. Its a 2012 jeep patriot manual and the check engine light was flashing. For example, does it happen when you accelerating, driving on the highway or does it appear at low speeds? This will help your mechanic evaluate the issue. It was OK when giving gas, although still not right, but the idle was horrible and the car stalled out a few times at a red light, also really bad start from a go. I pulled over and started the car a few times and it was normal. Drove about 1 km, stopped for a red light and then the engine started sputtering, rpm up and down and eventually it shut down. Engine firing issues: When one or more of your spark plugs isn't firing correctly, it can cause your car to vibrate. Your local NAPA AutoCare Center will be glad to check your trouble codes and help you get the problem. My car shakes when it's idling and the engine light is blinking on and offf 24 Answers. As a result, the engine runs rough and it makes the overall car shaking. You can get a reel of wire from AutoZone, or individual wires from PartsAmerica. The possible problem that has me concerned is the severe shake the engine has at idle. I went out with my husband to test problem and when the air compressor went on for the A/C (extra load on engine) it kicked on the VSA warning light and the symptoms. trying to figure out why this is happening. well when the check engine light comes on while the car is running and not when its supposed to when you start it, then u probably want to check the engine =) 4 people found this helpful. I only drove it back home luckily just a mile because I don't want to damage it. The worst case scenario is a car owner who keeps driving the vehicle because it "seems like it's driving just fine. The check engine light came on too and was blinking. Got replaced. Sometimes it's barely there and sometimes it's enough to shake the entire vehicle. If the Check Engine Light comes on, you may find any of the following codes: P0171, P0174 Lean fuel condition codes. The first time the “check engine light” came on steady was while driving, say on Friday AM. pulled over to the side of the road and turned the car off for about 10 minutes, turned it back on it acted like the transmission wasn't catching. It can happen while accelerating or braking and there are some common causes as to why this happens. My impression was that the engine was not getting the gas it needed as it would cough and stutter when I tried to climb hills or increase power, the pump and filter seemed to be the cause. But not very much. While accelerating fast, car started shaking and check engine light started blinking Car is a 2008 passat 2. so i get home do some research online then head back outside to check the car again since its cool down and of course the ticking is gone but the check engine light is still on. Engine seized with no prior warning. I put the car in neutral and revved up the motor and it seemed fine. You don't need to use a scanner to reset Audi check engine light as long as the problem was resolved. 2013 I was driving to work and it started jerking really bad and the check engine light came on I stopped at an advanced auto parts and had the code read, it. The first time the “check engine light” came on steady was while driving, say on Friday AM. This has happened a few times the last couple of months (randomly). So I start to get on the interstate, and I hit around 50-55mph and my engine downshifts to give me some extra power to get up to 70mph, and I notice that my car suddenly looses some power and my check engine light starts flashing. Why does the check engine light flash when accelerating and the car sputters and jerks? Answer A flashing check engine light means that something serious is wrong with the vehicle and you should. Top 5 Reasons why your car shakes when accelerating Number one. i had an issue with my check engine light before and had my ECM replaced about 3 months ago. The fluid on the dipstick doesn't look black or smell bad. Check Engine Light Car Shakes When Accelerating. I have no idea what it is. Car started fine. If you have ever been driving and your check engine light came on, you likely had an instant reaction of panic followed by the question, “Why is the check engine light on in my new Chevy?” There can be a lot of things that can cause your check engine light to come on, but there are a few that are more common than others. My truck Is a 97 F-150 xlt 5. Previous Post: Check Engine Light Car Shakes When Accelerating. not once did it show any check engine light or any other warnings. After about 10 miles, I stopped at a store. Now everything is fine. The bad thing is, when there is a problem in any part of this system, it can render the vehicle literally un-driveable and you will get a check engine light and reduced engine power warning. Vibration or shaking may be caused by misfires, poor fuel pressure, or faulty spark plugs. When driving the car at acceleration my car will jerk and the service Traction Control light will come on along with the check engine and then disappear. One of the most common problems that drivers experience is vehicle shaking. It runs like a new one. If the check engine light is blinking or you notice any serious performance problems, such as a loss of power, reduce your speed and try to reduce the load on the engine. check engine light on, shakes, runs rough, loudly when i accelerate in the rec. If you can check the oil condition on the dipstick, it can tell a lot. A check engine indicator is a malfunction-indicator light or MIL for the computer-management system. Check engine light flashes vehicle stutters/hesitates when accelerating, what's wrong? I changed the pluds/wires recently. This issue happened to me today when I was going to work in the morning. This article will take a look at the top 10 reasons behind a vibrating car. I have a 2004 Honda Accord. A steady light usually indicates minor problems, while the check engine light flashes only when there is a serious problem with your car. Engine Vibration Causes - Free Auto Repair Tips July 25, 2009 4:51 pm dennisb - Auto Tool Sales DIY , Drivetrain and Noises , How To Auto Repair This Kia Rio had a severe engine vibration, see the picture below for the cause. The check engine light is part of your car's on-board diagnostic (OBD) system. I started the car up one afternoon and when the engine kicked on the entire car started to shake and the check engine light came on. My BMW 325i started shaking and lost a lot of power and the check engine light turned on. This system is operated by the electronic control module (ECM), which is your car's computer. I would have the check engine light checked; just because it isnt on doesn't mean there isn't a code in the system. The contact owns a 2011 Chevrolet Aveo. To complete this task you will need a simple OBD II scanner. With a flashing CEL you have a serious misfire and are potentially putting raw fuel into. Signs of Problems with Your Car's Muffler car starts to shake when idling or accelerating and my car is losing power when driving up hill, I live in the mountains. This has happened a few times the last couple of months (randomly). Cold morning around 36 degrees F. They use several computers to operate the various systems on modern vehicles. Blinking engine light, shaky when i accelerate (2002 Toyota RAV4) what could be the reason why my check engine light blinks and my car shakes when i accelerate(90% of the time) or when i'm stopped/braking(50% of the time). I pulled over and shut the van off and restarted as indicated in the manual. The accompanying "lean misfire" will trigger a check-engine light. We bought a 2011 Equinox in May with 101K miles. Reduce speed and load. However, if you know what some of the most frequent caused of engine vibration are, you can not only avoid too much stress and worry, you can know. A car hesitates when accelerating is a symptom that shows an imperfect internal combustion in your engine. It will actually shake the entire car. The oil light or temperature light did not come on prior to car stalling with a seized engine. This started yesterday. The normal steady CEL is simply monitoring emissions systems in the vehicle. The engine light had been on for about a year with not really any signs of any trouble, other than slight jerking when accelerating out of a turn or a stop. If your car requires major engine work, it may be more economical to have your engine rebuilt rather than buying a different car. Cold morning around 36 degrees F. Car shakes in low RPM, check engine light on, diagnostic says misfire. The car (Renault Megane 1998 1. At idle, there is a few jerks. My BMW 325i started shaking and lost a lot of power and the check engine light turned on. In addition, when the accelerator pedal was depressed, the vehicle jerked before accelerating and the check engine warning light illuminated. You can get a reel of wire from AutoZone, or individual wires from PartsAmerica. I went to autozone to get it checked and it showed that cylinder 2 had a misfire. You can get a reel of wire from AutoZone, or individual wires from PartsAmerica. The chugging happens when I am gradually accelerating and my RPM gauge is right above the 2. Recently I started the car up and noticed the engine was shaking very roughly. If you are comfortable doing basic checks under the hood, check if you have enough oil in the engine ( see how to check the oil level ), see if the battery terminals are tight, if the air filter box is closed properly. This problem can be caused by various parts, the most common being a bad spark plug or an ignition coil. To determine where exactly the source of this problem is, you need an on-board diagnostics (OBD) scan tool to access the ECU and retrieve diagnostic trouble codes (DTCs). To complete this task you will need a simple OBD II scanner. I did not notice any broken/deteriorated motor mounts. It also shakes a little during acceleration and when I accelerate harder, the check engine light. I would have the check engine light checked; just because it isnt on doesn't mean there isn't a code in the system. This would also explain the symptoms on your 2007 Lincoln MKZ. I then had a check engine light that came on. Then check the engine oil , the oil was found less than normal. My car is still accelerating, but I lost some of my power. I use a 2007 Camry,my battery ran down and after jump starting,the car came on and just won't accelerate at all,flat on 0,the gas pedal seems for fancy,I asked a mechanic to check,he said fuel pump,and next thing he said the gas pedal has to be replaced that he found out the car pumps fuel just fine,I asked him to return the pedal and I'll. (2000 Toyota Solara) The other day I was getting on the expressway and as I hit the gas to accelerate the engine hesitated and only accelerated at a very slow rateif I gave it too much gas it began to shake. the check engine light being on sounds to me like a misfire, but when is blinking it means you catalytic converter is overheating, which probably means its clogged. What could be the problem?. The causes vary, but knowing why the shaking is happening is half the battle. Car shaking & check engine light flashing. pulled over to the side of the road and turned the car off for about 10 minutes, turned it back on it acted like the transmission wasn't catching. I let it sit for awhile, then went to drive it around the block to see if it happened again. trying to figure out why this is happening. I took the car to the Dealer and after some harsh words were exchanged, they replaced my Cat, it was the Cat, the Cones was broken up and clogged exhust flow. the light flashed when I accelerated and when I slow down it goes off. My engine. On most cars, whether front-wheel or rear-wheel drive, that sound would come from the front of the car. It reflects the driver , the LAUNCH Creader VII vehicle engine idling shake , the ” da da ” abnormal sound when accelerating. If I put it in neutral, it stops shaking. car begins to shake when acceleratingbecomes rather violent at 65+mph. To complete this task you will need a simple OBD II scanner. hey guys i own a 05 limited without the nav ,,194k lately the car was stuttering and shaking only when i touch the acceleration pad and theres no sign of check engine at all ! ive been suffering from this for a whole month was too busy to take it to the dealer!!. i just took my car in at 79,777 miles and they replaced ta cat converter for free b/c of warranty, but charged me for turning the check engine light off and that was 105. They use several computers to operate the various systems on modern vehicles. Shook alot at the low speeds and I feared would die when I was at stop light. I did not notice any broken/deteriorated motor mounts. I pulled over and started the car a few times and it was normal. 159900+ miles. Why does the check engine light flash when accelerating and the car sputters and jerks? Answer A flashing check engine light means that something serious is wrong with the vehicle and you should. integrity of the racks – to check you need to shake the car, the racks should make a faint hissing sound; whether the wheels are bolted properly. Cold morning around 36 degrees F. The car is sputtering on acceleration when the pedal is first pushed and then hesitant as it builds up speed. If the check engine light is flashing, that means stop driving ASAP because you will do serious damage to the engine or exhaust system. The light won't turn off now and my truck lacks power when accelerating. Shakes are consistent over 40mph while going straight on mainly flat roads or uphill. so i turned arund and headed home. So this just started recently. 328i Engine shaking violenlty and check engine light This is the second time this has happened when driving. My truck Is a 97 F-150 xlt 5. It's one of the most common reasons why a car jerks when accelerating. no warning lights were illuminated and no visible indications or warnings were displayed to give any indication as to what the problem might be. I then had a check engine light that came on. As shown above, it can be an indication of problems with spark plugs, wires, ignition coil, gas cap, oxygen sensor, and a catalytic sensor, among others. – Clogged air filter or blocked exhast. check engine light came on dealer said the o2 censer was bad and was replaced and light is still on, now I am unable to get a license plate renew sticker for the car, since I have had 2 traffic tickets as result, dealer has no idea why. After about 10 miles, I stopped at a store. It's Monday morning, and you're on your way to work in your trusty car and truck. So I parked for a few minutes checking the engine area which looked fine. Within two to three days of normal driving, the check engine light will reset itself (CEL will turn off). I have a 2004 Honda Accord. It also didn't appear to be leaking and fluids and it never ran hot. At idle, there is a few jerks. check engine light is blinking!! need some info!! check engine light started to blink on and off! i pushed the gas peddle to see if it just needed a kick, but. I use a 2007 Camry,my battery ran down and after jump starting,the car came on and just won’t accelerate at all,flat on 0,the gas pedal seems for fancy,I asked a mechanic to check,he said fuel pump,and next thing he said the gas pedal has to be replaced that he found out the car pumps fuel just fine,I asked him to return the pedal and I’ll. 140000 miles. I put the car in neutral and revved up the motor and it seemed fine. i had an issue with my check engine light before and had my ECM replaced about 3 months ago. My car is still accelerating, but I lost some of my power. I ended up driving to an AutoZone and they said it was because of cylinder misfiring (1, 3, and 5 I believe). Moisture gathering in your car's distributor cap can cause your car to jerk while you are accelerating, as this will cause your engine to misfire. integrity of the racks – to check you need to shake the car, the racks should make a faint hissing sound; whether the wheels are bolted properly. The car is now completely loses acceleration around 3,000 RPM's and is smoking (white) worse than ever. You should also know that a defective idle air control valve might make the engine idle drop significantly. After about 10 miles, I stopped at a store. I took it to shop and got a tranny flush and had them check why engine light is on and they said it was just a malfunction so they reset it and I left there and my car chugged and light came back on. This article will take a look at the top 10 reasons behind a vibrating car. I was on my way to get some gas, road was empty and thought I would accelerate aggressively for fun. What Causes a Car to Shake While Accelerating? Credit: DreamPictures/Blend Images/Getty Images There are various reasons why vehicles shake while accelerating and some of them include a clogged transmission filter, a worn-out universal joint and low transmission fluid. Often, it will come back to a "lean" condition," meaning that there's either not enough fuel or too much air going in. Top Reasons Your Car May Be Shaking 1. Loose suspension components. I don't know much about cars so I decided to look for help. A car hesitates when accelerating is a symptom that shows an imperfect internal combustion in your engine. These diagnostic scanners are a must for all car owners. Check engine light flashing car shaking is a clear sign of trouble. Once the driving speed is reached the car runs perfectly until I try to accelerate again. If the light is still flashing, turn off the engine and contact us to report your breakdown. trying to figure out why this is happening. so i turned arund and headed home. Another words if I am not in a hurry I can just the ease the gas pedal down and the car runs great but if I need to accelerate quickly I am in trouble because the car will not allow me to do it. It also seems as though the engine is pulling extra hard. We were driving in the interstate and out of no where, the car started to shake (thought a tire was going to come off) but then the check engine light started flashing. Hey Tyler, thanks for the A2A :) A flashing Check Engine Light (CEL) is not good. Ford Expedition check engine light when accelerating. Check engine light flashes vehicle stutters/hesitates when accelerating, what's wrong? I changed the pluds/wires recently. I was on the road for about 15 minutes then all of a sudden when I went to accelerate it dogged down, light came on, and it's been sputtering ever since. The fluid on the dipstick doesn't look black or smell bad. The MAF regulate the amount of air your engine intake, if your engine is not getting enough air, you car will jerk when the engine need air the most especially at startup or high acceleration. Within two to three days of normal driving, the check engine light will reset itself (CEL will turn off). My engine. What could be wrong with the vehicle?. At idle it sputters and sounds more like a little boat engine to me. She runs great but after putting in gas one morning starting stuttering and would not accelerate. It's one of the most common reasons why a car jerks when accelerating. The code came back as needing to replace the crankshaft sensor, and the oxygen sensor.