My truck had this problem. The headlight switch was shorted out in such a way that the dash lights would not come on, and the over head light would not go off. I also have a bad ground somewhere under the dash. Changing the switch fixed the dash lights, but my gauges still go crazy when I use my turn signals. The wiring in these trucks was not designed very well to start with. Whenever my 300,000 mile 350 finally gives up, I'll pull the dashboard and rewire everything so it's nice and simple. Even though these trucks have problems, they're much more reliable than anything that's come out since.
YES.
YES.
YES.
i need the ignition timing for 88 chevy 5.7 ... 350 motor i had the truck on 4 but still bad don t run good
the seats out of 73 to 88 Chevy or a gmc
88 to 99 are ALL the same
What can I do to make a 16 inch wheel fit a chevy truck 2005 hittn brake bracket
no, the body style changed in 1988 1981 thru 1987 are the same though
Yes those 2 years are the same. Direct bolt in.
No they are not, The 78 does not have a computor. But the 88 does have and that means more wires and different wires.
dash lights relay
i believe it is up to 86 maybe 88 that are the same truck.