Overheating while accelerating not in idle

116,234 MILES • 5.3L • V8 • 4WD • AUTOMATIC
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DANYEL
  • MEMBER
  • 1 POST
My SUV started overheating while in drive. It will go all the way up to just before the red line then stops pretty much. It only does this while accelerating. The heat/air will blow hot sometimes and cold some. However, while in park while running the temperature goes back down. I am thinking hose or leak but have not had the chance tonight to look, it just started.
Oct 20, 2018 at 4:11 PM
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STRAILER
  • ✓Experienced Mechanic
  • 55,721 POSTS
Hello,

It sounds like you have a partially blocked radiator or the fan clutch is not working right. Here are guides to help us get started:

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

and

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

and

https://youtu.be/N_-MLVlBHk8

Please run down these guides and report back.

Cheers, Ken
Oct 22, 2018 at 5:32 AM
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