I have a 1992 Chevy 1500 stepside 4 x 4 5 speed 5.7 when I have my headlights on and use my turn signals my gauges jump around and my headlights seem dim . what would cause or fix this ?
You may have a weak alternator
Or even may have a weak battery you need to have them tested
Brand new battery and alternator
Does this happen at idle or a stop?
Anytime I use the turn signals and when I hit rough bumps
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