Question about 2002 Mitsubishi Montero

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Have you repaired the temp gauge issue

I have the same car with the same problem. A separate gauge connected to a new sensor indicated that the temp was fine. Have you been able to repair your car?

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I have a 2002 Mitsubishi Montero Limited. The other day the temperature gauge went from normal temp to Max HOT. The radiator is still cool enough to touch, it is not boiling over, and there is still coolant in the resivour. The gauge would go back down to normal in a few minutes, but now it immediately climbs to Max Hot within 1-2 minutes of turning the car on.

Posted on Aug 19, 2008


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I have a 1988 Mazda 626. What are the correct resistance values for the temp. gauge sensor at various heat levels? The official service manual doesn't give them. Thanks.

The Autodata fuel injection manual provides those figures for the engine management temp. sensor and I think I have seen them in the Haynes repair manual.

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I have a 2008 Chevy Colorado and today my temp

when a temp gauge drops to cold ,it indicates a problem in the cooling system
temp gauge sender units need water to activate the resistance that makes the gauge read so a falling gauge indicates no water around the sender unit --- air lock in the system--faulty wire connection to the gauge sender unit
the ac unit is not connected to the temp gauge so there may be another separate problem there
the temp sensor is an entirely different unit to the temp gauge sender unit and the short term working would be from an altered coolant level from changing that sensor --air lock in system
the temp sensor connects to the ECM to activate the fans and monitor engine operating temp so as to keep the air/fuel mixture exact for the engine conditions
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a faulty thermostat will either be stuck open and the engine temp will take a long time to rise or it will be stuck closed and that will cause an overheat very quickly

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2 Answers

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