Why do the belts on my 03 Dodge truck squeal when it is humid
530

Asked by Terri May 08, 2013 at 01:46 PM about the 2003 Dodge RAM 2500 SLT Quad Cab RWD

Question type: Maintenance & Repair

I've noticed that the belt/belts my 2003 Dodge truck squeal really bad but only when it's
humid. Why is that? And can I fix this myself?

3 Answers
177,465

tenspeed answered 11 years ago

The moisture in the air and a cold worn belt is slipping over the alternator pulley. When the belt warms up, the belt grips. You probably have 120,000 miles on your truck and the belt tensioner is weak. If the belt is old, replace both of them.

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