Sensor, which is which? - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 12-13-1999, 11:03 AM
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Sensor, which is which?

Hi all, need your expertise. I want to change my engine coolant temperature sensor ('88 Bronco, 351w). Someone told me it's on top of the intake manifold. I found one about half down the upper intake (on the driver side) and another one behind the thermostat housing (with an F looking adapter, one connecting a sensor and the other a small hose leading to the throttle body). My Chilton manual is worthless in indentifying these sensors. Does anyone know which sensor is which? Also, the replacement, from what I'm told is a plastic sensor versus brass. Are they any good? Thanks in advance.

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post #2 of (permalink) Old 12-13-1999, 06:36 PM
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Re: Sensor, which is which?

i bleave the sensor behind the thermostat cover is for the dash temp gage
and the other sensor is for the computer i could be wrong and as far as brass or plastic i would use brass because its metal and not some cheep pacstic that might crack
have fun

post #3 of (permalink) Old 12-14-1999, 05:57 PM
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Re: Sensor, which is which?

Jim's right, it's by the thermostat.
I took a look at the Bronco's... It looks like a combination temp sensor and small water outlet. It has a hose connected to it that sends water up to the EGR cooler.

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