Q: Car shakes, idles roughly, has difficulty accelerating

asked by on

After the car sat for some time and I started it up, it was shaking quite a bit. It has difficulty accelerating and idles roughly. When I stop the car at traffic lights, the issue occasionally gets so bad that I have to restart the car. I checked to see if the air intake has any cracks but it is fine. Also, the air intake sensor looks clean and dry. What should I check next? Thanks.

You may be having problems with the high pressure injectors in one or more cylinders. The injectors tips get clogged with carbon and do not spray good when the engine is cold. The problem may be random and intermittent.

You would need to have the system checked to see if the injector is causing a code to the cylinder. If so, you will have to replace the injector and the injector across from it to complete the repair.

If you need some assistance with this, feel free to contact a certified mechanic who can diagnose your rough idle and other driving symptoms. If my suspicions are correct, the mechanic can assist you with replacing your injectors as necessary.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Car shakes, idles roughly, has difficulty accelerating

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: Car rumbles when accelerating for the first time after not using the car for 12 or more hours.

Hi there: What you're describing could be several issues ranging from clogged fuel injectors or dirty fuel filter to electronics related with a problem with the ignition coil or a sensor; even a vacuum leak. If you turn on the...

Q: When I come to a stop it almost dies

There are several issues that could cause your A4 to nearly stall as you slow down. Most of the time, it's caused by an idle control valve that is damaged or dirty; however, vacuum leaks could also cause rough idle...

Q: Right wheel shaking when driving

Being unable to drive your vehicle due to a shaky wheel is not a great experience. Unfortunately there could be a variety of reasons that can cause your right wheel to shake when driving. A failed strut, loose suspension components...

Related articles

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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.