i have a 1993 gmc serria 1500 4.3 liter v-6. i have changed the fuel pump, injectors, fuel pressure regulator, fuel filter, cap and rotor, spark plugs and wires. the truck bogs down spits sputters if i get on the gas real hard but at idle it runs great. what else can it be.

i have a 1993 gmc serria 1500 4.3 liter v-6. i have changed the fuel pump, injectors, fuel pressure regulator, fuel filter, cap and rotor, spark plugs and wires. the truck bogs down spits sputters if i get on the gas real hard but at idle it runs great. what else can it be. 1 Answer

I NEED A REAL GURU ON THIS ONE!!! 1993 GMC K1500 5.0L Have changed most of the fuel system but still having issues of not wanting to start. 5 Answers

The truck is a standard cab with an 8ft bed and 131" wheel base if that makes any difference. So here is the scenario: the truck was having issues of starting and then would start to stall and I wou...

I have a 1990 gmc seirra 1500 4X4 with the 5.7 350 in it....im having trouble with it missing and backfiring thru the intake after it warms up...it runs fine cold....i 've replaced the plugs , wires , cap , button , and fuel filter and the fuel pump is about three yrs old...any ideas or experiences? 3 Answers

It seems to me like its choking itself to death....make sense?.....what would cause that?

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 took the bed off my GMC 1500 1990 truck and changed the fuel pump, it started fine, put the bed back on it and now it will not start, what happened? 2 Answers

the truck would not start so we took the bed off and changed the fuel pump. It started and run fine, we even drove it down the rode. After we put the bed back on the truck the truck would not start. H...