V10 reads hot while pulling trailer

Reply Subscribe

Thread Tools

Search this Thread

Jul 14, 2022 | 08:36 PM

blackdakotadave

Thread Starter

Trailering

Joined: Oct 2011

Posts: 15

Likes: 0

V10 reads hot while pulling trailer

My 2001 F250 with 6.8 reads hot while pulling trailers. The oil and coolant are fine. Could this be a plugged catalytic converter? Need Help...Thanks

Jul 14, 2022 | 08:42 PM

blackdakotadave

Thread Starter

Trailering

Joined: Oct 2011

Posts: 15

Likes: 0

hot v10

Something other than the temperature sender is triggering a hot scenario which puts the engine into "limp mode". Shutting down and restarting resets the hot scenario.

Jul 15, 2022 | 04:59 PM

Dweber85rc

Fleet Mechanic

Joined: Mar 2019

Posts: 1,293

Likes: 164

What do you mean exactly by "reads hot"? Do you have an actual temperature gauge with numbers or just going by the gauge in the dash?

Jul 16, 2022 | 06:05 AM

JWA

Fleet Owner

Joined: Aug 2010

Posts: 21,253

Likes: 1,656

From: Reynoldsburg, Ohio

Quote:

Originally Posted by Dweber85rc

What do you mean exactly by "reads hot"? Do you have an actual temperature gauge with numbers or just going by the gauge in the dash?

Alternately using an IR thermometer pointed at the thermostat housing with engine running ASAP when the limp mode is triggered would work. So would having a scanner connected to the OBD-ll port with a "view data" function when trailering to monitor the coolant temperature would work as well.

Jul 16, 2022 | 08:03 AM

blackdakotadave

Thread Starter

Trailering

Joined: Oct 2011

Posts: 15

Likes: 0

I am guessing that the temperature sensor is not accurate. It is telling me that the temp is good, until that moment that it triggers the limp mode. Also, I am pretty sure that the fan clutch is weak, and cools enough when not towing, but not enough when towing on a hill. I have ordered a new temp sensor from Ford, as well as a fan clutch. We'll see if that solves the problem.