Clutch fan?

[richards72chevy]

My clutch fan sounds real noisey when i take off.Almost like a big rig.Is this a sign that it is going out?I have no over heating issues.

[gchemist]

Nope. It's fine. When you idle, temps goes up so the clutch engages. If it does not stop at all speeds or after a few minutes of driving, then you should replace it. Next time it's hot, turn off the motor. Spin the fan by hand. It should spin freely. If you have to force it or it does not spin freely, it's starting to fail.

I ditched the stock fan for a 4.0 Explorer fan. It's lighter and has more fins on it. It's also more efficient. I noticed the difference with the A/C at idle and slow speeds.

Follow my swap here:

[richards72chevy]

Thanks gchemist.The fan does go off after a few minutes.This is the the frst vehicle ive owned that had a clutch fan.Thank for telling me about the ford fan swap.

[likaroc13]

Originally Posted by gchemist

Nope. It's fine. When you idle, temps goes up so the clutch engages. If it does not stop at all speeds or after a few minutes of driving, then you should replace it. Next time it's hot, turn off the motor. Spin the fan by hand. It should spin freely. If you have to force it or it does not spin freely, it's starting to fail.

I ditched the stock fan for a 4.0 Explorer fan. It's lighter and has more fins on it. It's also more efficient. I noticed the difference with the A/C at idle and slow speeds.

interesting...looks like you have a newer engine...i wasn't aware that those have the same clutch fan issues...i know my '93 with 4.3L sounds like an airplane when first taking off, but it smooths out shortly afterward...i assume this Explorer fan would work with my engine as well? how much of a difference did you notice?

[gchemist]

Read about my conversion here: http://67-72chevytrucks.com/vboard/s...d.php?t=409153