2004 Chevrolet Avalanche 1500 Q&A
2004 Chevrolet Avalanche 1500 Question: reduced engine power
The real question here is "How to I diagnose this problem?". If we could tell you what to replace without performing some tests, this service wouldn't be free. I would start by checking the fuel pressure and also check for any diagnostic trouble codes. I would get a verification that the PCM has the latest software available as well. - Bret Bodas
mine did this once,searched net and luckily my problem was simple by moving the gas and brake pedals up or down by control on driver door,the vehicle protects you and itself if it senses that your throttle could stick. hopefully your problem was as simple fix as mine. - Visitor
my 2006 g6 gt did the same, once or twice a day, then until i couldnt drive 2 feet. my check engine, traction control off, and reduced engine power lights were coming on. hooked it up to a computer and it read code p1125, which was APP (accelerator pedal position) - Visitor
EVERY 200-300 MILES "REDUCED ENGINE POWER" MESSAGE APPRARS...I CAN LOOSEN RADIATOR CAP AND MESS...
hand held computer was sayin throttle body replaced it i give it gas and nothing on dashboard sayin reduce engine power please help
THE TRUCK WILL JUST IDLE HOW DO YOU FIX IT
GOT THE MESSAGE REDUCED ENGINE POWER HOW DO i FIX IT
abs and brake lights come on whenever im going over a small bump or pot hole it also says to service brake system when i already serviced the brakes... my speedometer isnt working also..i dont know...