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Old 12-04-2004, 04:56 PM
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Big Temperature Gauge Problem

Hey guys. I'm getting at my end here for what to do. I have a malfunctioning Temp. Gauge and I'd rather not have to put a different one in there. I have an 84 Z28 Camaro and I just put a new temperature sensor and figured that would solve it but it didn't do anything. whats happening is the gauge works fine but the only reading I get when I turn the engine or "on" on I just get a completely maxed out reading and thats that. on my thermostat housing theres 2 holes one with the temperature sensor and one with another sensor piece with 2 prongs but it's not hooked up. I looked up my electrical diagrams and I believe all the wires are running right. currently there hasn't been any antifreeze run through the new temp sensor. I haven't been able to let the motor warm up enough because I'd liek to know the temperature before I try this out. do you think that it just needs some water and antifreeze to hit it? any help would be appreciated thanks.

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Old 12-04-2004, 08:13 PM
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Gauge

Is this car stock, modified? Computer system still hooked up? Do the other gauges work correctly? Unplug the sensor and turn the key on. If it still pegs the temp gauge you have either got a grounded wire or a faulty gauge. If your car is stock that other temp sensor is for the ECM . The temp sending unit is a thermistor and applies more & more voltage to the gauge as the engine temp rises. I'm sure you have it right but double check the connector at the unit and make sure it is not crossed. Check both sensors at the housing. Anyway the feed wire from the sensor if it got grounded somehow it would peg the gauge.
Go ahead and fill the cooling system up. But being low or the probe not touching anti-freeze will not peg the gauge.
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Old 12-05-2004, 07:20 PM
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found out the problem. no wire hooked up. and I had the wrong sensor. Doh! lol thanks for the help though
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