Skip the auto shop - Our mechanics make house calls

Q: Shaking while stopped, difficult acceleration, sudden takeoff

asked by on

My car runs fine generally. However, the other day, there was a lot of shaking when I stop the car. It would shake for a few seconds, then stop, then shake again and so on, the whole time the car is stopped. The shaking was very noticeable. Afer that, I had difficulty accelerating but the car took off suddenly. What could be cuasing this? What do I check first? Thanks.

It sounds like you may be experiencing an engine misfire. When a cylinder in your engine is misfiring, it will throw off the balance of the running engine. As a result, vibrations can be felt throughout the vehicle. This would also explain your trouble accelerating.

If the engine only has one cylinder misfiring, sometimes at higher RPMs, it will not be as noticeable and the engine may seem to run normally until lower RPMs or speeds are reached. This is another reason that your vehicle will accelerate suddenly after a moment of pressing on the gas pedal.

I would recommend having your vehicle scanned with an OBD-II scanner by a professional to check for a misfire code. If a misfire code exists, have your spark plugs and ignition coils inspected in order to get a proper diagnosis for your car’s acceleration issue.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. Shaking while stopped, difficult acceleration, sudden takeoff

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: problem with starter maybe?

Hello. Will be happy to assist you. It does sound like you have an issue with the bendix gear of your starter. Possibly a starter on as last leg and or on its way out. If the starter is bad...

Q: Front end shakes - 2000 Chevrolet Monte Carlo

She may be correct. However, you may want to inspect all of the parts your spoke of and ensure there are no torn boots or grommets. If there are, have them replaced. If not, no need and have a front...

Q: air conditioning

Hi there: What you're describing may be multiple issues with your air conditioning system, from the high pressure hose to the ac pump. However, it could as simple as needing an AC recharge. Different cars, trucks, and SUV's go through...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...