CHEVY LOSING POWER

2001 Chevrolet Avalanche

Tiny

ironhead1

September, 7, 2010 AT 5:51 PM

Engine Performance problem
2001 Chevy Avalanche V8 Four Wheel Drive Automatic

It's an 01' 2500

It's losing power upon acceleration. And it sounds like it backfires around the cat conv.

I have used fuel injector treatment but that's all I have done. SOmeone told me that it may either be the fuel pump or a o2 sensor.

FOUND 14751 RELATED QUESTIONS

1 Answer

Tiny

hmac300

September, 24, 2010 AT 12:57 PM

Check yoru fuel pressure but change the fuel filter first. If this persists check your vacuum at idle. If it's around 15" then have your converter checked for partial plugging. Also have your engine scanned to see if there are any stored codes or not. Most auto parts stores do this free of charge.

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