my horn and alarm were working and now it doesnt after i took it in for service. can i just reconnect a wire?

my horn and alarm were working and now it doesnt after i took it in for service. can i just reconnect a wire? 1 Answer

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

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...

91 gmc sierra after it warms it will shut off at red lights, stops,and in traffic .i keep my foot on the gas to keep it runnig 1 Answer

How do i fix it