Super easy!
Step 1: Get the idler pulley from autozone for $18 bucks
Step 2: Loosen the serpentine belt by turning down the tensioner (to your bottom left); you should be able to do this with your hands...no tool required.
Step 3: Take off the S. belt
Step 4: Use a 18 mm wrench to turn the idler pulley's center bolt.
Step 5: Replace the Idler pulley
Step 6: Replace the S. belt
Step 7: Push the tensioner back into th eup position to tighten then S. belt.
This should take you 13 minutes going slow...
if you do not have no experience in fixing car, do not do it
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Loosen the tightner pulley then slide it off. Then do the loosen the pulley and put the new one on. Same way to replace all serpitine belts
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