Question about 1990 Chevrolet K1500
Faults are definetly related, and all of these symptoms can come from a poor ground as you say, and/or a faulty (intermitttent) regulator. This is part of the alternator that regulates the voltage at 13.8-14.2v at idle to ensure adequate voltage to all sytems and to charge the battery.
Due to the age of the vehilce, I would be suggesting an alternator replacement, incuding a clean up of all engine and body ground circuits.
Posted on Oct 08, 2010
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Posted on Jan 02, 2017
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