Questions & Answers for: GMC backfire

why does my 1998 gmc truck backfire and stutter sometimes stall when driving truck backfire and stalls when driving I would suspect a burnt valve. An engine compression test will verify this. my ...

1999 GMC Yukon seems to backfire once in a while 1999 GMC Yukon seems to "backfire" about once a week. Afterward, it will start rough, then run fine after a few seconds. Rest of the time it runs fine ...

engine is hesitant and sometimes backfires while 1998 gmc sierra 5.0L, engine is hesitant and sometimes backfires while cold and under load for about 1 minute. Changed fuel filter and air filter spark

loud backfire when starting only sometimes 97 loud backfire when starting ,only sometimes ,97 yukon ,veryscary then its probably one of your cylinder's is going to stop working maybe

I have a 1997 gmc sonoma, 2.2L, manual trans. When I try to start it, it usually cranks and locks up like timing is off. It backfires sometimes. Then if it starts, it misses and backfires sometimes. ...

1994 gmc running lean backfires when i let off the gass no power changed tbs ,iac runs rough backfires when going down the freeway have to floor it to get it going aand backfires, Go to auto parts ...

97 gmc seirra 2500 5.7 misses and backfires on deacceleration repaced distributor and all components, replaced MAF sensor, run better with Maf unplugged but still misses and lower power from engine ...

1994 gmc backfires when i give it gas it runs fine until i go over a hill or just want to give it gas on the freeway. it softly does small backfires when i give it gas ..but when i go over a hill it ...

Truck is backfiring and missfiring. My truck backfires after decelerating on the highway and is missfiring. ive been told it is because the timing and needs a tune up. ive also been told its the fuel ...

Missing and backfire. Truck starts and idels fine but on accellaraton misses and will backfire if you accellarate hard. Fuel pump has been chaged for a different symptom. No codes showing. You can ...