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2004 gmc envoy_SLT
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Discussion Starter · #1 ·
Hi, I have a 2004 Envoy 4.2L. Starts right up, revs up no problem, soon as its put in gear, the SES and Reduced Engine Power light comes on and car does not rev anymore. I have seen threads on the Reduced Engine Power, but trying to pinpoint exactly if possible. Didn't read anything if the car was revving before REP (or Speed) light happens. Is the sensor in the pedal or throttle body connected to the shifter? or tranny? since it happens when I shift. Any help is appreciated.

Thanks in advance!!
 
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