97 RUNNING VERY ROUGH

1997 GMC Jimmy

Tiny

chudgeons

June, 13, 2012 AT 9:01 PM

My truck has been running rough for a while now and over the past month or so, and after doing some research, I have changed all the vacuum hoses, plugs etc, it has a brand new fuel pump and fuel spider, I have cleaned the EGR valve and nothing seems to solve the problem. Does anyone have any ideas? It starts but backfires constantly and the power level is very low.

Would appreciate the help! Thank you

FOUND 4236 RELATED QUESTIONS

Running Rough

27 ANSWERS
34 IMAGES

Idles Rough/changed Ects

37 ANSWERS
3 IMAGES

1 Answer

Tiny

rasmataz

June, 13, 2012 AT 9:06 PM

Clean out the idle air control valve and throttle plate-test the TPS closed and wide open throttle voltages, also test the MAP sensor-check exhaust system for restriction and if all okay -recheck the spider for leakage

Please login or register to post a reply.

How to gather codes Ford Explorer
Code Read Retrieval/Clear Scion XD
How to read codes Chevrolet Blazer
Code Read Retrieval/Clear Mercedes Benz