i have a 1994 z71 350 5.7 when i turn it over it wont start but when i turn it over and give it some gas it will back fire and blow black smoke out the tailpipe

i have a 1994 z71 350 5.7 when i turn it over it wont start but when i turn it over and give it some gas it will back fire and blow black smoke out the tailpipe 1 Answer

My truck stopped running last night. it was running right, new oil change and then stalled out on the way home. it will not start at this point, turns over, tries, but never does. what could be wrong? 2 Answers

1985 GMC Sierra. just got an oil change the day of, not problem with spark plugs, checked already. had abnormaly large amount of white smoke from oil change. when it started to stop running the thrott...

Replaced a plethora of parts and she still won't act right. Will not start nor stay on when it does actually start. 1 Answer

My truck won't start at all now. It will chug like it's trying to start (not clicking, my battery and alternator are both brand new). I've replaced the distributor in it's entire. Ignition control mod...

My truck won't get spark after it runs for 20 minutes and you turn it off 2 Answers

I replaced the cap rotor coil ignition switch and distributor and it still doesnt have spark after I shut it off. It will start after sitting for 15 minutes. It's a 6 cylinder gmc sierra 1500 year 9...

Why does my truck bogg down or flood out when giving it too much gas? 1 Answer

92 gmc sierra 350 boggs down or floods out after driving it for a few minutes. Once it starts, u can shift to neutral while still rolling down the road, switch truck off and then crank it back up, ...