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Bad Temp Sensor? 850 1996

posted by  someone claiming to be ksg on  Mon Oct 15 10:14 CST 2007 [RELATED]

The cooling fans are run by a temp sensor on the radiator, not by the ECT sensor on the engine block near the thermostat. So the fans running all the time seem to be a separate problem.

It is not usual for the ECT sensor to go bad - tho the connections might be in poor condition. If the ECT sensor is not right the temp gauge on the dashboard won't read right either.

I would try to resolve the issue of the fans - on some cars the fan operation is linked to control of idle speed. For instance if the system thinks the A/C is running and calls for the fans to run, then the fuel suppply at idle would be increased to overcome the extra load due to the compressor. You might get a surge if the a/c is not actually operating then - though it might be hard to detect while driving on highway.

I assume you have no trouble codes set. Also have you ruled out all kinds of vacuum leaks, cracked air hoses, etc.?






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New Bad Temp Sensor? [850][1996]
posted by  Stringer  on Mon Oct 15 07:18 CST 2007 >


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