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Engine temperature takes forever to get to operating temperature in the summertime?

Tiny
GOGOJUICE6
  • MEMBER
  • 1994 FORD RANGER
  • 2.3L
  • 4 CYL
  • 2WD
  • MANUAL
  • 109,000 MILES
Checked thermostat and it is fine. How do I check fan clutch? With the engine cold, I turn fan over and it drags, and won't even complete a half a revolution. I thought the fan should turn easily with engine cold and as engine warms up, the clutch should engage. Can you help me out?
Thanks a lot.
Al
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Monday, January 16th, 2023 AT 1:50 PM

1 Reply

Tiny
BORIS K
  • MECHANIC
  • 758 POSTS
Hello,

Your initial diagnosis is correct, the viscous fan coupling should allow you to turn the cooling fan freely when the engine is cold and only lock up when the engine reaches approx. 170 F.

How a fan clutch works:
https://www.2carpros.com/articles/how-a-clutch-fan-works

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

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

A good explanation:
https://youtu.be/UwM4OqsLek4

Hope this helps.

Cheers, Boris
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Tuesday, January 17th, 2023 AT 4:00 AM

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