2nd Generation Specific 1986-1992 Discussion

coolant temperature sensor

Old 12-31-2010, 05:32 PM
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What are the specifications for testing the coolant temperature sensor on the S5? I am having some weird readings and need to test it.
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Old 12-31-2010, 06:17 PM
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Have you checked the fsm? I know the fd fsm has the resistance values for sensors
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Old 12-31-2010, 08:20 PM
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its a fun process of boiling water , dropping the sensor into the water with the ohm meter hooked up and read the temp of the water with the sensor in as the water warms up. referance the resistance or voltage to the current temp the water is and cross ref to the factory spec. not a fun or short thing to do.
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Old 01-01-2011, 03:59 AM
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standard delco curve sender

-20 C = 14 to 17K ohm

20 C = 2.2 to 2.7 K ohm

80 C = .29 to .35 K ohm
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