1998 Dodge Caravan squealing noises

Tiny
TPROPST
  • MEMBER
  • 1998 DODGE CARAVAN
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 160,000 MILES
Something around my serpentine belt is causing a loud squealing noise. The noise started after we replaced the belt. We have replaced all the pulleys and with each replacement the noise seems to get worse. Please help.
Do you
have the same problem?
Yes
No
Sunday, February 28th, 2010 AT 10:00 AM

1 Reply

Tiny
CARADIODOC
  • EXPERT
Sight down from the highest run of the belt to the section between the lower pullies. If you can see the lower section peeking out about 1/8" compared to the section above, the spring-loaded tensioner pulley's arm is worn and the assembly should be replaced. That causes the belt to slide across the pulley as it goes around it. Also, tug up on the belt and watch that tensioner. It should move back smoothly when you let go. Oh, ... Do that with the engine not running!

If the belt feels a little loose, try pushing on the tensioner pulley. Sometimes rust builds up on the pivot and they get tight. That prevents them from applying enough tension on the belt.

Don't use any type of belt dressing on serpentine belts. Dust will stick to it and become embedded in the smooth backside. Not to ask a stupid question, but are you sure it's the belt and not a squealing alternator or power steering pump bearing?

A stethoscope works nicely in locating which is the offending pulley. Look very closely at the ribs to be sure they match perfectly with the pulley grooves.

If all else fails, try a belt from the dealer with a "Q" at the beginning of the part number, (quiet).

Caradiodoc
Was this
answer
helpful?
Yes
No
Sunday, February 28th, 2010 AT 10:21 AM

Please login or register to post a reply.

Recommended Guides