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Overheating problem

(1995 GMC Jimmy)
in Garwin, IA on June 19, 2010
what would cause my 1995 jimmy to overheat and cool down while im driving it down the road or if its just running? i just replaced the waterpump and themostat and it still keeps doing it. It is not the clutch fan either. I hooked a scanner up to it while it was running and the coolant temp on scanner was way cooler of a reading then the reading i was getting on temp gauge in the vehicle.I replaced the temp sending unit too.
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Popular Answer
on June 19, 2010
I would consider getting a replacement gage. Some times it it is better to install an aftermarket gage they can be more accurete than factory. there are a number neat options on the market. good luck
gmd
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