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IAT Inlet AIR Temp Sensor Repeated Failure


mwilder

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Sep 13, 2018
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Vehicle Year
1989
Vehicle
Bronco II
Have replaced the IAT going on the forth time. Got any suggestions what to look for? 89 4X4 manual.No other issues.
 


JerryC

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Vehicle Year
1988
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Ford
Look close at the wiring for corrosion, worn through insulation, etc...
I don't remember if ground is through wiring harness or through direct contact with the intake. If it is the latter, don't use thread sealant on the sensor.
 

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