How to diagnose which pulley is squeaking.

Treenut08B to Mechanic Advice@gearhead.townEnglish · 10 months ago

2001 Toyota Highlander 3.0 v6 (1mz-fe)

Loud continuous squeaking in cold weather, and seems to be getting worse over time. It will continue to squeak until the engine gets hot. Belt tension seems good. Timing belt, serpentine belt, and power steering belt were all replaced recently, so I’m thinking it’s one of the pulleys. Is there a reliable way to determine which one is making the noise?

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