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Sorry for not getting back sooner, but yesterday I replaced the electric gauge with a manual one and i'm getting 60lbs cold. Which is why I switched to a 0-120 gauge. The grounds were cleaned and other gauges work normally. Probably should think about a new harness. Want to say thanks to all...

Update: managed to crawl under the steering wheel and get a good look at the back of cluster. The spider harness looks klke its been pulled on and off before and is frayed in some areas. Ordered a new harness today and hoping thats it.

Thanks, if it ever stops raining here in NJ i'm going to try to run a separate ground wire from the cluster to a good ground on the chassis and see if that works.

All four corner screws are tight. Don't know if there is other grounding.

Thanks for tips. Will be working on truck again this weekend.

They are in the same spot as before, but even with both oil wires off the other two gauges are still pinned.

So okay today I replaced the 0-60 oil pressure gauge with a new 0-120 one with a new 120psi sender. Problem is when I turn on the accessory switch, the oil, generator and fuel gauge go pinned to the right with engine not running. Rechecked grounds all looks good. Any ideas?