P1289 FORD - Cylinder Head Temperature Sensor
#2
#4
Join Date: Oct 2002
Location: St. Louis (Out in the woods)
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You might have a bad sensor, a wiring concern, or a PCM concern. The fault code is there to point you in the direction needed, it is NOT a diagnosis of a bad part. You still have to do your diagnostics to pinpoint the fault. Otherwise, you'll be back with the common line of "I had a fault code so I replaced the sensor but I still have the fault code. What do I do now?" The answer is that you have to do now what you should have done before replacing the part, the rest of the diagnostic work only now you've wasted money on an unneeded part.
#5
WHERE is the CHT on 2011
I have no particular experience with a 2011. But having some experience with the CHT on my 2004 I found your question of interest and went looking...
Found this post that might help.
https://www.f150online.com/forums/20...r-problem.html
Seems like their P1289 code resulted simply from a connector knocked off the CHT. Hope yours is as simple.
#6
On my 2010 5.4L F150 the CHt is under the intake on the passenger side head. I received code P1289, changed the sensor, and still got the code P1289 again. A couple years ago a squirrel bit my injector harness to the #2 cylinder and cut it completely in half. So, I pulled the intake and sure enough the pigtail for the CHT sensor had been bit off. A big chunk of it.
5.0s have the CHT on the back of the head from what my searches have turned up.
CHT pigtail bit by squirrels. See the section they cut out laying in the valley in the background.
5.0s have the CHT on the back of the head from what my searches have turned up.
CHT pigtail bit by squirrels. See the section they cut out laying in the valley in the background.