1990 Lumina Gauges

1990 CHEVROLET TRUCK
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A13398
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1990 Chevy Lumina, 3.1 litre engine, 159000 miles

the oil and temp gauges are all over the place. They ill read high,low or fluctuate at all engine speeds. Sensors check electrically according to Chilton manual specs. I'm thinking it's a bad ground on the gauges/dash pod but don't know where to look for that. Any ideas or other suggestions? By the way, this happened once before at about 135000 miles but stopped. Thanks.
Mar 4, 2007 at 3:25 PM
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2CARPRO JACK
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Bottom of main forum page is a link for auto repair manuals. In there you will find all the wiring diagrams you will ever need for your car
Mar 5, 2007 at 7:11 AM