facts so far.
1: the failure is intermittant.
2: the voltage is near 12vdc at the tail lamp, pink wire, key on, 3 seconds on, and this point in the chain is good. so is the ground wire seen there for the pump is not rusty.
3: so we now know the problem is at the rear of car. not in side the cab wiring,
1/2 the battle is over, with just one voltemeter test and visual inspection of those 2 wire connections at the tail lamp.
1: the failure is intermittant.
2: the voltage is near 12vdc at the tail lamp, pink wire, key on, 3 seconds on, and this point in the chain is good. so is the ground wire seen there for the pump is not rusty.
3: so we now know the problem is at the rear of car. not in side the cab wiring,
1/2 the battle is over, with just one voltemeter test and visual inspection of those 2 wire connections at the tail lamp.
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