voltage randomly jumps to 18 or so, according to the dash gauge, then drops back to normal or down to about 8 volts. Then returns to normal. Some days it doesn't act up as much as others, but it is anoying. When it spikes, my radio shuts off (goes into surge protection mode) until the voltage drops. Not sure what's going on. Each time this happens, the tachometer and speedometer react as well. The speedometer does not work any more. The odometer does. It has the cable and electrical harness set up.
JA: Have you checked the fuses?
Customer: Not the fuses or it would just shut off.
JA: What year is your Volts?
Customer: 92 Dakota 5.2L v-8 4x4
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: New ECM and battery
. New relays. The relays get hot and shut down the truck sometimes. I swap them around and it starts again.
JA: Anything else you think the mechanic should know?
Customer: not at this time.