i overheated my heads. cracked one so i replaced them both. now my truck when under load works great, but if i back off the petalor reachncruisind speed where there is no load it atarts to miss .

i overheated my heads. cracked one so i replaced them both. now my truck when under load works great, but if i back off the petalor reachncruisind speed where there is no load it atarts to miss . 1 Answer

My break lights are not working when I push the peddle down and my left turn signal in the rear works when it wants to I checked all the fuses and changed the break light switch but no luck so far 3 Answers

Before I changed my break light switch I would here a click when I would barely press on the break and the break lights would work until I pushed them all the way down to stop now that I changed ...

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...

security light not on, but gmc 1500 will not start there is a noise from the cycliinder where the key goes in, my truck was hit and hasn't started since but will turn over, will run if feed gas.. 1 Answer

Truck hit, have tried the security 10 minute on off stuff, but I do not have a yellow blinking light never did... however there is a noise after you turn the key to try and start that is like from the...

My 97 gmc sierra 4x4 1500 will not shift while in drive but if I put it in 2 it will move like normal. reverse works great. tranny is full of fluid. 4 Answers

Rpms shoot up to 4-5 when stepping on gas in drive. It is an automatic. When I manually shift it to 2 it drives fine no spiked rpms.