chevy350ga

Ok i recently pur a used motor in my truck but when i hooked the battery back up everything turned on like the key was turned on but the switch was off and when i started it i could out shut it off so i just put in a battery cut off switch but now my truck wont start i can get too start by mashing the gas but i have to keep hitting the gas till it smooth out but it acts like it skipping but i just put new spark plugs and rotor but it did help

oldchevy

The engine is wired incorrectly.

chevy350ga

Well I've had 3or4 guy look at it even looked at another trucks to c if it was wrong but everthing is were it need to be

95YukonGT

I'm having the same issue after pulling my 5.7L to replace some seals. When I hooked up the battery, lights came on in the dash. Started ran good, then turned the key off and kept running. Mine is a stick I just stalled it out and disconnected the battery. Where did you find the wiring problem at? I would appreciate and guidance.

meternerd

First, try a little grammar and punctuation....so we old timers can tell what you're asking. You have 12V directly connected to the ignition system somewhere downstream of the ignition switch. You'll need a test light or a multimeter to find the problem. A wiring diagram will help a lot, too. Don't count on wire colors...some previous owner may have done some creative wiring. Fix the ignition problem first, then worry about the running/starting problem. They may be related.

95YukonGT

Ok, I was able to fix my no shut off issue. I found the fuse box on the driver side fender, opened it up. Pulled fuses and fount 2 that stopped the power from getting to the coil. 20A Eng and 20A horn. I disconnected the battery pulled the 2 fuses. Reconnected the battery while fuses were out and I heard a click, like a relay in the fuse box resetting. I reinstalled the fuses and problem was fixed.