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.

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
  • Home
  • Questions
  • Yukon--We have replaced the Throttle Position Sensor twice now and the engine light still comes on.

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: Engine, power steering, and brakes shut off

Given you had a "sudden" failure, you might check the crank position sensor first. This component instructs the ignition module when to fire the spark plugs. If the crank position sensor is OK, work your way up the electrical path....

Q: Jerking when taking off sometimes

Hello, as I read your query, I understand the question to be one of "Why does my Explorer jerk when taking off?". I would most suspect the rebuilt transmission for this issue. Depending on what sort of service center rebuilt...

Q: Engine light won't go off

Your check engine light may come on for many different reasons such as a faulty mass air flow sensor, a faulty O2 sensor, a bad catalytic converter, bad spark plugs or wires and many other reasons. Due to the wide...

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...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
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...