Skip the auto shop - Our mechanics make house calls

Q: My car shakes sometimes when in stop-and-go traffic

asked by on

I noticed a wile a go my car reving and going into fail safe mode then I went to my mechanic and he noted that my engine head seals and transmission seals need to be replaced so I did and also changed the transmission oil, after that my car ran normally for three days then I noticed that the car stats to shake wile in Traffic exactly like it you have a bad ignition coil but it comes and goes although I changed them recently and new spark plugs so it doesn't make since that it went wrong less than a month of changing them I'm really puzzled by this and I'm thinking it might be a bad throttle position sensor

My car has 174000 miles.
My car has an automatic transmission.

Hello, thanks for writing in. For an issue like this we usually need to start by scanning the computer for codes. This will allow the mechanic to see if the computer is seeing any problems. If there are no codes then we would need to drive the vehicle for a while with a scan tool installed to monitor the engine sensors to see where the problem is. It sounds like a timing chain issue or an airflow sensor that may be failing. For this service, consider a YourMechanic certified mechanic to come to your home or office to diagnose and repair the shaking issue. Alternately, if you know what fix needs to be made, you can have a timing chain replacement or mass airflow sensor replacement.

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!

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: Can a bad canister purge valve cause my car to shake/vibrate under the hood when i brake or make constant stops?

First thing to check is the problem codes that are setting your Check Engine light on. While it is true that fumes from the vapor canister are pulled into the engine during "coast down" when there is high vacuum in...

Q: I did my brakes on my santa fe all except the rear passenger rotor. this morning the e brake on the rear passenger side locked up

The cable that you are referring to is made of ordinary steel and thus is subject to a lot of rust and corrosion. If rusted, it is possible that the cable is simply failing to retract in the cable sheath,...

Q: Battery died. Now can't get into my car to pop the hood and charge it.

Hi there. The car could have made the door latches locked out. This prevents the doors from opening during an event of power loss during an accident. This happens, but the mechanical key should still open the doors. If the...

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.