rbsdrake

hey guys newbie here. i have an 06 f150 crew cab fx4. i was driving this past sunday and my temp guage kept going to cold and back up to normal then it finally just stayed at cold. the air also quti working. i hooked it up to the computer and it said it was the cylinder head temp sensor, so i replaced it and the guage is still not working and now its saying its the pcm. what in the world is going on?

360ci

Well, electrical gremlins are the worst. Check the PCM for any breaks in the gasket where moisture might have entered the unit. If the gasket is broken, replacement is a good idea.

It could be a fault somewhere in the wiring, and you may need a new wiring harness but as there's no direct code for that, the computer would say the PCM is bad. It's a difficult problem to solve as the symptoms aren't narrowed down.

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'00 Durango R/T 360ci 290hp (modded); 138,500m
'06 Pontiac G6 GT 3.5L 220hp; 44,000m
'12 Chrysler 200 Limited 3.6L 283hp; 13,000m
'99 Taurus 3.0L 2V Vulcan 145hp; 154,300m - Traded
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