I have 2000 GMC 1500 5.3 litre Engine, in very cold weather starts fine, runs for few seconds than engine wants to stall than engine revs up for few seconds tahn again wants to stall, at time it will stall. Start the engine again runs for few seconds reveving up & down than runs fine after 40-50 seconds, anyone knows what this could be ??

I have 2000 GMC 1500 5.3 litre Engine, in very cold weather starts fine, runs for few seconds than engine wants to stall than engine revs up for few seconds tahn again wants to stall, at time it will stall. Start the engine again runs for few seconds reveving up & down than runs fine after 40-50 seconds, anyone knows what this could be ?? 2 Answers

04 gmc sierra 1500 5.3 died on me on the highway got it towed home starting going at it, hooked two different scanners to it and not throwing any codes (ecm is working bc the map was reading correctly but also the rpm was zero) anyways checked fire none checked injectors they wasnt working either(built fuel pressure then unplugged fuel relay then turned engine over and the pressure stayed the exact same) i assume it might be the crank sensor but i would think it would throw a code, anyways came back this morning and before doing anything for the hell of it i checked the gas cap and tightened it and it fired up perfect three different times and the last time i let it run and it died after bout 45 seconds (fuel pressure reads 55) and after it died its doing the same thing cranks but wont fire or start 1 Answer

died on me on the highway got it towed home starting going at it, hooked two different scanners to it and not throwing any codes (ecm is working bc the map was reading correctly but also the rpm was...

I have a 1999 GMC Serria 1500 series truck I took out my 305 engine and put in a 350 engine now it wants to stall 1 Answer

I put all most everything new in the motor even a computer and when I did it runs worst. Please help

95 GMC Sierra. Runs good cold. As soon as it warms up it starts trying to stall while driving and does stall when stopping. 1 Answer

Have to constantly bump start it when shifting down. Thank god it's a standard. Have changed plugs,wires, cap and rotor. Tried running high test gas and have tried injector cleaner.

94 gmc pick up engine 5.0 when the engine warm change drive to rivers stall 1 Answer

94 g m c 1500 engine 5.0 when the engine warm been drove for about 25 30 minutes stop and try to rivers engine run rough or stall turn the steering engine stall any idea?