Temp Gauge Problem

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Mar 3, 2002 | 08:26 PM

kidcamarosc

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Joined: Feb 2002

Posts: 190

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From: WI

Temp Gauge Problem

Im having a problem with my temp gauge not working. When i start the car up it moves all the way to 260 or whatever but falls back down to 100 and doesn't move while driving the car. any help apreciated thanks

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88 Camaro SC
Black w/ Gold GFX and Rims
160000 miles and still rollin
305 TBI w/ open KN
Hooker Cat Back
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Mar 3, 2002 | 09:14 PM

85SportCoupeto89RS

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Joined: Jul 2001

Posts: 2,760

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From: Cove, Arkansas

Car: 85 Camaro SC

Engine: V6

Transmission: 700r4

It could be that you need a new coolant temp sensor that is near the water neck. Or its not connected, might be a coolant switch instead of a sending unit,or frayed wires, or a bad gauge.

Mar 4, 2002 | 08:32 AM

Vader

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Posts: 19,660

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Re: Temp Gauge Problem

Quote:

Originally posted by kidcamarosc
Im having a problem with my temp gauge not working. When i start the car up it moves all the way to 260 or whatever but falls back down to 100 and doesn't move while driving the car.

ALL GM cars will "peg" the temperature gauge on cranking, then return to the correct reading once the engine is running.

If you temperature gauge never reads above 100°F, you may have a problem with the gauge sending unit or an overcooling problem, such as a stuck open thermostat. Verify the coolant temperature with a thermometer in the radiator (cap removed). If the temperature gauge is not reading correctly, the first step would be to check the temperature sending unit. Of course, teh coolant level is correct, right?