Dosge durango loud noise

Asked by Jstarks12 Sep 06, 2019 at 03:19 PM about the 2005 Dodge Durango SLT 4WD

Question type: Maintenance & Repair

I replace the theromstate abd gasket, flush radiator ans
refilled with coolant a month ago. Yesterday i replace the
water pump and fan clutch with brand new part now I am
hearing a loud jet noise when i accelerate  times the noise
come and goes. I was wondering if that is normal because
its a new part. Or becuase my old one might not have not
worked and i am just now hearing this sound for the first
time.

1 Answer

1,120

YES. This how the clutch for a belt-driven fan is supposed to function. When the air passing thru the radiator and over the face of the clutch reaches a certain temperature the fan clutch locks and spins the blade at the same speed as the belt, this is what gives the roaring noise and draws in air fast enough to keep the motor properly cool. The fact that your last clutch didn't allow the noise (from the fan spinning at motor speed) meant it was completely shot, as under cooler temperature the clutch is not locked and the fan blades are spinning signifigantly slower than motor. Clutches last about 5-6 years with regular daily driving and ac system use.

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