Truck is making sparks when u start it up


Asked by Oct 10, 2015 at 03:00 AM about the 1992 Chevrolet C/K 1500

Question type: Maintenance & Repair

I have a 1992 chevy 1500 i got a new radio and had it installed. Later on that night i was driving and then smoke came out from under the dash. Of course radio didnt work then but also the starter was dragging. So we replaced the starter. Check the battery (which is only 3 months old) to make sure no dead cell.  Everything ok , Hard to start if u could get it to . Then when i starter it up there were sparks coming from the wire thru the firewall for the thermostate guage.  We have taken the new radio out, disconnected the thermostate so no power going to it. replaced the started, and the battery and the thing still wont start  HELP

2 Answers


Well you have some wiring issues of course. Need to start tracing the wires you messed with to find the short. A power wire is shorting out, need a test light or a multi-meter, look for frayed wires, make sure no ground wires connected to power, Check for blown fuses to give you an idea on what circuits to check.

1 out of 1 people think this is helpful.

Start where the wires were sparking, chances are that it burned through some wires, after you think you have found and repaired the damage then check the fuse links, it most likely fried as least one of them.

1 out of 1 people think this is helpful.

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