Why is my brand new serpentine belt still squeaking?
A brand new serpentine belt can still squeak during startup, acceleration, or after driving in the rain. This ongoing noise prevents drivers from resolving the issue with a simple belt replacement alone, often requiring them to investigate pulleys, tensioners, or alignment.
What people tried
Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.
- 1Waiting for the belt to dry or go away by itself
- 2Spraying the belt with silicone spray to diagnose
- 3Replacing the belt and tensioner together
- 4Inspecting and replacing faulty tensioners or pulleys
In their words
Unedited, most upvoted first, each linked to the thread it came from.
“Had my serpentine belt replaced as I thought that was the issue. But not even a month after replacement it is squeaking again.”source ↗
“Happens when I turn on my car and when I accelerate. But after a while driving it STOPS making noise.”source ↗
“After driving in the rain yesterday my serpentine belt started squeaking. Is it as simple as I need to replace the belt?”source ↗
Where this came up
People with this problem also raised
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