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Overheating problems

Tiny
99KEITHDEIRA
  • MEMBER
  • 1999 FORD EXPEDITION
  • 5.4L
  • V8
  • 4WD
  • AUTOMATIC
  • 160,000 MILES
As stated, I have a 99 Expedition. I have replaced the thermostat, but still having issues. It only gets hot after driving about seven miles. I pull over to let it cool, and then it runs fine. Won't get hot again until I get home, park it, then drive again. The antifreeze is Prestone, non-diluted. I've used several types of cooling system addents. They haven't helped. Please help. Thank you.
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Monday, May 19th, 2014 AT 11:01 AM

4 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,667 POSTS
It sounds like you have a cooling fan not working can you hear the fan running when it is overheating?

This guide can help

https://www.2carpros.com/articles/engine-overheating-or-running-hot

Please let us know what happens.

Cheers
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Monday, May 19th, 2014 AT 11:43 AM
Tiny
WCONNOLLY2
  • MEMBER
  • 1 POST
I have had the same issue except I have replaced water pump radiator and tstat to no avail
I used 50/50 antifreeze
Still scratching my head
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Monday, February 5th, 2018 AT 5:08 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,667 POSTS
This sounds like a fan problem to me like the fan clutch is not working. Here is a guide to help us get it changed out .

https://www.2carpros.com/articles/fan-clutch-removal

Please let us know what you find. We are interested to see what it is.

Cheers, Ken
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Wednesday, February 7th, 2018 AT 4:04 PM
Tiny
99KEITHDEIRA
  • MEMBER
  • 1 POST
Thanks for getting back to me it was the fan clutch that had a problem once I replaced it the problem went away.
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Wednesday, February 7th, 2018 AT 4:05 PM

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