Bronco overheating issues?

[Benjamin Larsen]

I’ve been having overheating issues with my Bronco and was curious if anyone else was seeing similar issues or had a fix for the issues they were having. I’ve been noticing very high engine oil temperatures and not sure what to do to get it back down.

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[Brian_B]

What is “very high”? Are you getting a Check Engine light or going into limp mode?

Somewhat high (upwards of 235-240) is normal at times and ok.

The usual fix is to turn the A/C on high - that forces the radiator fans on high and can drop that oil temp considerably.

 

[Benjamin Larsen]

I’ve been using Max A/C to get it back down but I’ve seen 275 degree oil ofc this was for a short time but still not the numbers I want to see even for 30 seconds

 

[Brian_B]

That is pretty bad

 

[brkdncr]

275! That’s dark roast.

 

[Felix808]

How long after installing that bumper did it start happening? Doesn't look like much intercooler airflow is going on, especially at slower speeds

 

[Benjamin Larsen]

I bought it new with that bumper on it. I’ve met a lot of more local Bronco owners that have way more restrictive airflow and no problems. I think the problem is honestly the cooling fans. They never run very high even at high temps.

 

[Brian_B]

Well, the cooling fans don't run based on oil temp - only coolant temp and HVAC load.

I'd agree with looking at intercooler air flow first, beyond that, not sure exactly how that oil temp is calculated (it isn't a sensor, the computer guesses) and what other things to check. Seems like most of these people find it's either they blocked the intercooler, or the intercooler is caked in mud

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