Questions & Answers for: GMC stumble

...start or has a hard time starting when the air temp is below 32. Sometimes the truck starts and stumbles at idle and will die doesnt matter what the air temp is. When truck is under load

Stumbles and backfires on acceleration 1993 4.3L CPI "W" coded V6. Idles nicely, upon revving or acceleration the engine stumbles and backfires. Installed new distributor ignition module Check the ...

...a 5.7 liter v8.automatic trans. with 59 thousand original miles.When the van is cold I have a bad stumble /hesitation in 1st gear , from 0 to about 15 to 20 miles an hour,when the van warms up to ...

1985 GMC 5.7 liter van has a bad stumble/hesitation My 1985 GMC van with a 5.7 liter v8 and automatic trans.with 59 thousand original miles has a hesitation /stumble when COLD in first gear between 0 ...

...XL 1500. was driving came to a stop and went to accelerate and truck jerked forward and started to stumble. made it about 1/2 a block and died completely. engine starts but stumbles and dies

stumbles on acceleration fuel pressure seems good. just had major tune up. car runs good after that but shifts real hard was the vehicle stumbling and shifting hard, before the major tune up, if not, ...

van has a misfire ,stumble problem only on hills ,We put new plugs ,wirescap and rotor and a new coil .New fuel filter too it still has a definate buck ,miss stumble Try changing the ignition control ...

2002 envoy engine stumbling My Envoy has 185,000 and performs like new. Lately however the engine is stumbling and surging a little while driving, or at stop lights. What sensor should I try first. ...

1999 gmc stumbles over 2500 what is my problem Runs and idles great till 2500 then stumbles. I have 60lbs fuel pressure new cap and wires already. could b the transmission tourq convertor

...a P0442 (small evap leak). Before I go troubleshooting this, I was wondering if this could cause a stumble while at idle or accelerating. Acts like bad coil(s) but no code. small evaporated leak ...