I replaced my motor in my 01 sierra.do I have to have my ecm reset or reprogrammed for the new motor if it's the same size but different years

I replaced my motor in my 01 sierra.do I have to have my ecm reset or reprogrammed for the new motor if it's the same size but different years 1 Answer

I replaced the blower motor in my 1996 GMC Sierra but it still doesn't work at all. 6 Answers

Air wasn't blowing in my truck at all, so I replaced the blower motor, but it still isn't blowing at all. I haven't bought a resistor for it cause I don't think that's the problem, what else could i...

i have a 1998 gmc1500 w/5.7 and i swapped motors same one the old one had a bad head so i replaced motor and now `the new one wont start but it is a spark problem 1 Answer

i don t know what else to add except for I am gonna go over all the wiring`

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 am replacing the timing chain and gears on my 96 GMC 1500 5.0L. 305 if I want to change the cam should I do all of it a the same time. I am also going to replace some of the gaskets to hopefully get a few more miles out of of the motor that has 400000 miles. Can you suggest anything else to help me to get a few more miles without doing a rebuild. 1 Answer

I am replacing the timing chain and gears on my 96 GMC 1500 5.0L. 305 if I want to change the cam should I do all of it a the same time. I am also going to replace some of the gaskets to hopefully g...