Skip the auto shop - Our mechanics make house calls

Q: Yukon--We have replaced the Throttle Position Sensor twice now and the engine light still comes on.

asked by on

The car jerks when you take off from a stop sign and it is free wheeling when going down a hill. The odd thing that hasn't made any sense, that we had a power steering line which got bad and linked down on to the transmission and the engine light went off and and stayed off until we replaced the power steering line. The car drove perfect during this time. Could it be a ground wire and where would this ground wire be placed.
My car has an automatic transmission.

A: There could be a wiring issue in that area ...

There could be a wiring issue in that area where the oil leak was. You did not mention the code number. You may have two concerns with the vehicle. The car jerking is related to the Check Engine Light being on. The freewheeling condition could be an internal transmission problem. A road test would be required to evaluate this. If you would like to have this checked, a professional from YourMechanic can come to your car's location to diagnose the jerking issue and Check Engine Light in order to have the correct repairs made.

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・Save up to 30%

Get a quote

What others are asking

Q: My power steering - 2006 Pontiac Grand Prix

Usually power steering systems have a pressure hose that goes from the pump to the rack and pinion there is a return hose that goes from the rack and pinion to the reservoir and then there is a feed hose...

Q: I can't go in reverse

The transmission in your vehicle requires special tools to check and fill the transmission fluid level. It does not have a dedicated dipstick to check transmission fluid level. You can attempt to have the transmission serviced but with the age...

Q: The car shutters, has difficulty accelerating

The flashing Check Engine Light indicates a fault that has the potential to damage the vehicle's catalytic converter. The car flashes the Check Engine Light to let you know that the car should be checked as soon as possible. Catalytic...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
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.