grampadirt
On MEDICARE Officially Old
Engine coolant temp for the dash gauge on the driver's side,aux. fan switch on the pass. side.I have a toggle switch connected to the aux. fan switch wire so I can turn it on any time I want.quick question, I gotta 91 C3500 (dually) with the 454..... What are the sensors mounted directly above the exhaust manifolds on the heads? Theres one on the passenger and driver side middle of the engine..... I tapped the one on the driverside and it crumbled into dust. are they coolant temp sensors?
Thanks
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