jwterry3

Helping a good friend diagnose an issue.

2014 5.0 with 90k miles…..got a engine over temp msg / followed by fan running full last for 3 minutes / then the temp gauge spikes


no CEL and no stored DTCs on my reader.

assume cylinder head temp sensor? Is that the sensor on back of engine block that’s a PITA or is that coolant temp sensor? Anything else to look at?

Spiky

I'd think thermostat first.

I mean, I'm assuming someone checked the coolant level.

jwterry3

Thought thermostat would throw a cel and code?

djfllmn

iTrader: (1)

if i was a betting man i would lean towards the CHT. stocked one when i was at the ford dealer, take a good look at the connector too

jwterry3

CHT= cylinder head temp sensor or coolant high temp sensor?

djfllmn

iTrader: (1)

cylinder head temp