1999 gmc, was running fine, now the gas gauge doesn't work and will only start up and go back dead, replaced the fuel pump, all fuses and relays. ??

1999 gmc, was running fine, now the gas gauge doesn't work and will only start up and go back dead, replaced the fuel pump, all fuses and relays. ?? 2 Answers

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...

I have a 1991 GMC Seirra it stalled and won't start checked fuses and fuel pump everything is fine what else could I look for? 1 Answer

It was running fine the days before the it stalled and wouldn't start back up. I'm lost Checked fuses, fuel pump and everything is fine so I have no clue what else to look for.

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...

Just replaced fuel pump on my 1998 GMC chevy cierra z71 4wheel drive truck.. I seemed fine and I drove I a couple days then it quit running. It's getting gas in pump but not presure. What can I do? 1 Answer

Also replaced relay fuse. Help