V10 showing hot
FTE Leadership Emeritus
Joined: Jul 2002
Posts: 42,561
Likes: 423
From: Long Island USA
If it were me, I'd find the wire going to the PCM from the coolant sensor, and see exactly what it's seeing, in terms of voltage. A disconnected coolant sensor usually shows very low temp, like -40 degrees in the case of my 4.6L. The super-high temp means it's either shorted directly to ground(+12?) or the PCM input circuitry is bad.
FTE Leadership Emeritus
Joined: Jul 2002
Posts: 42,561
Likes: 423
From: Long Island USA
You can subscribe to motorcraftservice.com and get all the wiring diagrams. It's something like $11 for 72 hours, $20 for a month, etc.
You can print them out, or save the images to your local computer.
You can print them out, or save the images to your local computer.
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