Skip the auto shop - Our mechanics make house calls

Q: Engine shakes intermittently after warmed up with car in "drive" at a stop. Single shakes at a time.

asked by on

Hello,

My instructor at the technical school sprayed my throttle plate (butterfly) with cleaning fluids to clean plate and throttle body. There was just some carbon buildup inside.

Later we (students only) changed the spark plugs with NGKs that came originally on the car. No torque wrenches were used. Coil packs for cylinders 4 and 6 had been incorrectly connected and led to P0300. We corrected the problem. Engine ran for a minute or so on 3 or 4 different engine starts with the issue before we swapped connectors.

A couple days later I notice that while my car is stopped while in drive, the car engine does a single shake. It happens again the following day. Both times were after I had taken short trips and warmed up the engine. Just yesterday I took the car on a long trip and every time I came to a stop, the single shakes occurred often. So it definitely happens after engine is warmed up.

Runs fine on the highway. I even get the same fuel economy as before.

Any ideas?

Thanks!

My car has 149600 miles.
My car has an automatic transmission.

Hi there. There could be an issue with the fuel system or with the ignition system on your vehicle. It seems that the engine is having a minor misfire. Check the spark plug wires and see if any of them have a split in it causing them to go to ground. Also, make sure that the wires are attached to the spark plugs correctly. The engine and transmission mounts will also make the bumping feeling as the engine is hesitating from high mileage. Check to see if the mounts are loose or worn. If you need further assistance with your engine shaking, then seek out a professional, such as one from Your Mechanic, to help you.

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
  • Home
  • Questions
  • Engine shakes intermittently after warmed up with car in "drive" at a stop. Single shakes at a time.

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: I have 2007 Infinity G35 6-speed. I can go threw all the gears and shift them in an out without the clutch pushed in

Hi there. Check to see if the clutch is engaged at all times. Check the slave cylinder to see if it is fully engaged and not releasing. Look for the return spring on the fork or on the slave cylinder....

Q: Is using a new OEM compressor necessary, or can a used compressor be used?

You can use a new or used compressor. the costs of parts and labor will need to be quoted since not only the compressor but the drier and expansion valve plush flushing of system will be needed.

Q: Loud bang and shaking starting car

Hello. It sounds like there is a broken engine mount or transmission mount that may be causing the banging noise that you are hearing. It is possible that something was damaged in the suspension system which could also cause a...

Related articles

How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
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...
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.