Electrical woes and dash problems.

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Mar 6, 2012 | 11:35 PM

DustinLangston

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Electrical woes and dash problems.

Hi, I'm new to this forum. I have a 1989 ford e350 Super Wagon with a 7.5L and C6 transmission that I use to travel with my band in. Were leaving for Florida Thursday morning and are having some trouble. After thinking my van was overheating and changing most coolant components I found that my dash was malfunctioning. The temp gauge and oil pressure gauge are showing much higher than they actually are. I've tested this a few different ways and know for sure. I'm sure it's a bad ground in the mess of wires behind my dash. If I turn on my heater full blast and start the truck the blower doesn't work unless I put it in gear or hit the steering wheel with my palm. I took the dash out today and wiggled a bunch of wires and it temporarily read correctly. But when I re installed the dash cluster it read high again. Can anyone help? Would someone know what ground controlles those gauges? Thanks!

Mar 7, 2012 | 07:30 AM

subford

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From: Easton,Ks

The IP ground should be located on your Brake pedal support.
You might also check to make sure you have a good body ground from the NEG battery post to the body and not the frame.