My battery light came on and the clock keeps resetting to 12 is this the battery or alternator?

My battery light came on and the clock keeps resetting to 12 is this the battery or alternator? 1 Answer

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 2016 Sierra SLE I came out and started my truck had been driving it that morning it was fine. I come out the store I started my check engine light is on and it would not go in drive. 8 Answers

I started my truck drove it fine earlier came out store i started it my check engine light come on and my truck will not wouldn't move when I put it in drive. everything was good earlier when I drov...

Battery light on then off 1 Answer

Battery light on then off

Battery light comes on driving down the road. 1 Answer

Battery light comes on driving down the road including brake warning light and ABS light. Had alternator (new last year) and battery (new this year) checked with now issues on either. Not sure if ther...