Help: Roaring Noise after Fan Clutch Replacement - Jeep Commander Forums: Jeep Commander Forum
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post #1 of 2 (permalink) Old 01-24-2017, 09:11 AM Thread Starter
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Help: Roaring Noise after Fan Clutch Replacement

I have an 06 Commander with the 4.7 V8. Started overheating about a week ago, never got into the red on the temp gauge, but went about 3/4.

Took it to my mechanic and he diagnosed bad fan clutch. Replaced it along with the t-stat and did a coolant system flush.

Ever since I picked it up, it has been making an awful roaring noise, and seems to have almost zero low end torque.

Taking it back today, but wondering if there is any advice out there? Possible wrong unit? installed incorrectly? (I do not know for sure, but i doubt they used genuine Mopar fan clutch)

Any guidance would be greatly appreciated.

Thanks!


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2006 Commander
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post #2 of 2 (permalink) Old 09-09-2019, 03:01 PM
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Location: Kendall, Fl
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Sorry to bring up an old/dead thread or post but this answer may help others.

I'm sure the original poster had the problem fixed or figured it out by now obviously but in case someone else searches for this issue and those related to it and that roaring noise, hopefully this can help them in their journey as I hope to find some help in mine with my roaring issue.

That being said, what probably happened here was that your mechanic most likely installed a "heavy duty" or "sever duty" clutch that constantly works in such a manner that it is always engaged and turns the fan faster/more for vehicles that are always towing or carrying heavy loads or are in super hot climates etc.

the severe duty clutch engages sooner and or is always engaged and sounds like you are driving a tank or like a jet engine etc


you have to be sure to get the normal duty one which is sometimes able to be found by noticing that the words "heavy/severe" duty are not listed.

hope this helps someone out there.

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