Ground issue?

Asked by Sep 10, 2018 at 07:26 AM about the GMC C/K 1500 Series

Question type: Maintenance & Repair

93 gmc k1500. When I turn,even
just curves on the road,all my
gauges freak out. That damn
seatbelt buzzer goes on,radio and
a.c. dim,no dashlights,speedometer
and tach bounce around,oil
pressure gauge ,all flip out. When I
even out,it all goes back to working.
What am I missing? And wipers
always come on with headlights.

6 Answers

54,855

Points to an electrical ground issue. My experience has been that sometimes when this happens, you have a broken motor mount: the engine shifts to one side on turns. Does this happen when turning only to one side and not the other, and does the engine tend to rev when this happens? I'm curious.

Both sides. And when I hit a decent bump. What is grounding out,so you think? I took the fuse out for the lights,and it stopped shorting

54,855

Guess you have the problem located. A short in the system for that fuse. "93 is pretty old and you have to expect problems relating to dirt, moisture, corroding. You could replace the fuse and follow all the wires in that system: it's a pain. Or take it to a mechanic/electrical and have him test the system. Shouldn't take him long.

Yeah,I'm doin all the work cause I'm broke. Thanks,buddy. I appreciate your input. If you have any ideas about why the wipers come on when I turn the headlights on,that'd be helpful too

54,855

That could be a fuse; sometimes a blown fuse will reroute juice and it ends up in the oddest places. You have the light switch with the cycle button I believe; that wouldn't cause this, but there is a cross between headlights & wipers that is intentional, for safety. Turning on wipers WILL turn on headlights. There must be a setting that causes the reverse; possibly in the wiper setting.

Thanks. Way better than just yanking out mile after mile of wire,from the wrong area. Cheers,mate

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