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Where is my Temp sending unit?

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Old Sep 14, 2004 | 10:01 AM
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thundrrod
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Exclamation Where is my Temp sending unit?
I have a 99 F150 4.2 liter. temp gage show redline but engine is not over heated. let it run in my garage for 20 min in the red and then I shut her off and turned her back on; gauge went to normal position. fuses look good. I cant seem to locate my temp sending unit though. there is a plug to the right of my thermostat housing but can locate where the unit is!!!!
 
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Old Sep 14, 2004 | 11:07 AM
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I looked in a service manual and only saw a temperature sending unit on the 4.6L...it is located on the front of intake on the right hand side.

The 4.2L has a head temperature sensor on the rear of the left hand head. I am sure someone else will be of more help.
 
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Old Sep 14, 2004 | 11:09 AM
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would that be rear driverside head? thanks for the quick response!!
 
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Old Sep 14, 2004 | 11:23 AM
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Yes. When considering vehicle handedness, always think of it as you are sitting in the vehicle. i.e. left hand = driver's side. Not sure if it is the sensor that ties to your light/gauge.
 
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Old Sep 14, 2004 | 11:47 AM
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thanks!! will keep looking!
 
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Old Sep 15, 2004 | 11:30 AM
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Little help
Does anyone have a pic on where the temp send unit is on my '99 4.2L F150? thanks !
 
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Old Sep 15, 2004 | 07:51 PM
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It's on the intake manifold, close to the thermostat.
 
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Old Sep 16, 2004 | 08:40 PM
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Thanks! man Really appriciate it!! checked it out but my actual problem was a stuffed up radiator. got it flushed, and all that good stuff. my baby is cool as a breeze now! thanks!
 
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