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Matt, Mechanical Engineer
Category: Jeep
Satisfied Customers: 23091
Experience:  BEng hons Mech engineering, in auto industry 22 years
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The serpentine belt on my jeep grand cherekee keeps coming

Customer Question

the serpentine belt on my jeep grand cherekee keeps coming off inclueding the pully
I have change all the drive pelt idelers and the belt
Submitted: 1 year ago.
Category: Jeep
Expert:  Matt replied 1 year ago.


If you're confident that none of the pullies are wobbling on their bearings the next step is to use a straight edge across the front of all the pullies to ensure all of them are running in -line and are square and true

also check the condition of the main crank pulley looking at all the pulley grooves for sings of bent ribs or stones stuck in the ribs

If this all looks OK then I'd next use a dial test indicator ( DTI) to measure the run -out on the crank pulley

Expert:  Matt replied 1 year ago.

do you still need help?
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