 Deceleration squeaking sound. Video attached., What is it and is there a fix? |
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| Michael N |
 May 3 2021, 02:27 PM
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#1
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Certifiable  Group: Members Posts: 1,426 Joined: 6-June 04 From: San Jose, Ca Member No.: 2,164 Region Association: Northern California  |
I recently noticed a squeaking sound when decelerating on the car when in gear or letting off the throttle. It is a high pitched sound and happens when letting off power or when using gears to decent down a hill instead of braking. It can be heard in the attached video after letting off the revs and goes away back at regular idle. Any thoughts?
https://www.youtube.com/watch?v=Z56NIM39uFQ |
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Replies(1 - 3)
| bretth |
May 3 2021, 04:54 PM
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#2
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Senior Member Group: Members Posts: 899 Joined: 23-June 15 From: Central TX Member No.: 18,882 Region Association: Southwest Region |
Wild guess would be belt or something alternator related.
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| Mark Henry |
May 3 2021, 05:20 PM
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#3
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
(IMG:style_emoticons/default/agree.gif) the belt would be my first check.
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| Dave_Darling |
May 3 2021, 10:29 PM
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#4
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914 Idiot Group: Members Posts: 14,991 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California 
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Almost sounds like air going through something. If the belt isn't causing it, look at your decel valve to make sure it's hooked up correctly.
You can stick a vacuum hose up to your ear and put the other end in various spots in the engine bay to see if you can isolate the noise. --DD |
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