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Gary, ASE Certified Technician
Category: Chevy
Satisfied Customers: 1124
Experience:  Senior Technician
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2006 chevy impala has experienced reduced power/throttle

Customer Question

2006 chevy impala has experienced reduced power/throttle position sensor message intermittently. it has had the throttle body and throttle position sensor in the car replaced but the fault has returned.
JA: Does the vehicle hesitate during acceleration? Or maybe speed up suddenly when you aren't even hitting the gas?
Customer: no the fault appeared then disappeared each time leaving the vehicle unable to start
JA: Are you fixing your Impala yourself? What have you tried so far?
Customer: the replacement of the two components was performed by a chevy dealership
JA: Anything else you want the mechanic to know before I connect you?
Customer: no
Submitted: 10 months ago.
Category: Chevy
Expert:  Gary replied 10 months ago.

Hello! My name is Gary.
Welcome to JustAnswer.
If the fault is still occurring, I would be looking at the throttle body wiring for intermittent open/short to ground etc.

Follow diagnosis for codes set.

Your dealer should know this by now.


Expert:  Gary replied 10 months ago.

Hello again,

Do you need any further help?

I hope my advice has been of assistance to you.

Kind regards