As I was taking off my old exhaust manifold on the passenger side I broke the connection to a sensor. I took the sensor out and let all the coolant out. The sensor is in the middle of the block(or the head, not sure) underneath the exhaust manifold. There is a pin that goes into the sensor, I think it is the coolant temperature sensor. The pin goes into the sensor but it will not stay in. Does anyone know what sensor this is and how I can fix it? I really need some help I did a search and couldn't really get a clear answer. Info on my car is in my signature.

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'91 Z28 305, Auto trans, K&N filters, TPIS air foil, power pulleys, ported plenum, hypertech chip, hooker cat back, kyb shocks, STB, 14.7@ 93 mph.

 

It should be the fan switch. Unfortunatly I don't think that there is a way to fix it. You'd be better off just replacing it anyways! This switch is almost like a temp sensor except that it is used to turn the fans on at a specific temp. Hope that helps.

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'91 Z-28 5.7, SLP 1 3/4 headers, 4 inch Mufflex/Flowmaster cat back, gutted cats, Edelbrock intake, 8.5mm Jacob wires, MSD Blaster coil, S&W subframe setup, Jacob Pro Street Ignition, complete Kenwood system.