2003 Chevrolet Silverado 2500 HD Q&A
2003 Chevrolet Silverado 2500 HD Question: reduced engine power
I have an 03 chevy 2500hd and the reduced engine power light came on and the throttle dont work it happened the other day and I just let it idle for about an hour and it worked. It happened now and it wont straighten out and it runs rough it will only rev up a little bit now? - Visitor
I just bought the same truck and it did the same thing to me the other day. I turned it off and on three times and it went back to normal. The truck seems to crank over slow so we check the battery and found that it was only at 10 amps. The bought a new battery and the problem hasn't come back since. Check your battery with a meter. This may not be the correction, but has been fine with mine. - Visitor
try looking at the throttle body wiring 8 pin connector one of the wires could be broke or open in circuit - papag0071
why does my truck read " reduced engine power "
When the weather starts to get cool the "reduced engine power" shows on the dash and I have to stop and turn the engine off. After 30 to 60 seconds and a restart the engine runs fine but the check ...
While driving the truck will go to reduced engine power. I can stop, turn the key off and resta...
check engine light stays on and this morning "reduced engine power" flashed along my dash and the gas pedal wouldnt work. I shut it off and restarted and it worked.
when it happens i lose engin power and have to pull over and turn the engine off for about a minute the restart the engine