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Intermittent ACC on my 760T???? 700 1987

posted by  someone claiming to be bob on  Thu Nov 11 16:19 CST 2004 [RELATED]

Possible engine coolant temp sensor problem. There is a temp sensor tee'd in to one of the heater hoses. It should have a single white wire to the sensor and a ground wire attached to the metal tee piece. If this sensor or wiring is faulty, it could cause problems. Note that with that system, if coolant temp is below a specified point, (I forget the spec) and a heating function is selected, the fan will not run till the coolant starts warming up, except on defrost.






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