WHAT MAKES THE REDUCED ENGINE POWER LIGHT TO COME ON?

2004 GMC Yukon

Tiny

tajuana

November, 18, 2011 AT 7:49 PM

First the reduced engine power light a come and then the stability stystem disable light a come, then we cant give the car no acceleration, cut the car off for a few minutes, and the can drive it again?

FOUND 14750 RELATED QUESTIONS

4 Answers

Tiny

fixitmr

November, 18, 2011 AT 8:06 PM

First get codes read to help with diagnosis.

Tiny

fixitmr

November, 18, 2011 AT 8:07 PM

The reduced power means you are in PCM limp mode.

Tiny

fixitmr

November, 18, 2011 AT 8:10 PM

Most common cause is wiring at throttle sensor.

Tiny

fixitmr

November, 18, 2011 AT 8:16 PM

Another common cause is dirty/gummed up throttle plate.

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