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Old 11-14-2008, 05:02 PM
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Calling all 1998 Dodge R1500 Truck Owners

I know someone with a 2 WD 5.9L Dodge Truck.

I have scoured the wiring schematics, and cannot find where a ground wire is supposed to go. There are two 'flat' braided ground wires, that are bolted to the top of the firewall, just beneath the rubber hood seal on the passenger side, above the right valve cover. One of the two wires is bolted to a valve cover bolt, and the other wire looks like it was bolted to the exhaust manifold.

It is almost long enough to reach a bell housing bolt. It does appear to be a body ground, and this truck is having a problem with the speedometer, and anti-lock brake lights turning on and off.

According to the schematics this wire has nothing to do with the grounds of those sensors, but I am thinking it might?

Could you please open your hood, and tell me where they mount.

Thank you in advance.

Stephen

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Old 11-14-2008, 07:20 PM
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a few years back i had a Dodge pickup come in with some electrical problems after some engine work was done at another shop.
along with what your describing, sometimes the head lights would also flicker when stopping or on a rough road and occasionally it would die coming to a stop.
it was a ground problem.
i can't help you with their actual locations, but IIRC because of the way it looked i mounted one ground on the exhaust manifold and the other one on the back of the head.
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Old 11-14-2008, 07:22 PM
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The speedo and abs issues are due to the speed sensor in the rearend housing being shorted or generally f ed up. The ground wire is not a problem related to that system. It may go to the hood for the ground source for the light.
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Old 11-14-2008, 07:46 PM
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Quote:
Originally Posted by Soul_Hunter
a few years back i had a Dodge pickup come in with some electrical problems after some engine work was done at another shop.
along with what your describing, sometimes the head lights would also flicker when stopping or on a rough road and occasionally it would die coming to a stop.
it was a ground problem.
i can't help you with their actual locations, but IIRC because of the way it looked i mounted one ground on the exhaust manifold and the other one on the back of the head.
There was no complaint about the headilights, but I will ask him next week. Thanks for the information, I am at a loss on this one.
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Old 11-14-2008, 07:53 PM
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Quote:
Originally Posted by enginejr
The speedo and abs issues are due to the speed sensor in the rearend housing being shorted or generally f ed up. The ground wire is not a problem related to that system. It may go to the hood for the ground source for the light.
The hood light works, I had thought about this first. What puzzles me, is they are not in the wiring schematics, and are obviously factory wires.

Any other Idea's?
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