Belt Squeal at startup and until engine warm
#1
Senior Member
Thread Starter
Belt Squeal at startup and until engine warm
Yes, ive searched, and do understand that this may be a common issue. Belts are less than a year old as is the tensioner and a couple of pulleys and the water pump. After replacing all of these, all was quiet. Then about 3-4 months later, noticed on startup (especially on colder mornings) there would be a noticeable squeal. Car runs great/fine, but the squeal is annoying. Engine is totally stock, but the way. Found this video. Wondering if this is the solution? (aftermarket belts).
Any input is appreciated.
Any input is appreciated.
#3
Senior Member
Thread Starter
Thanks. When its squealing, if I slowly pour a small amount of water directly onto the serpentine belt itself, the squealing stops completely. (temporarily). This indicates that it's a belt issue, not pulley.
#4
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I just think that you should change the belt, because it's obviously compromised, due to slipping.
#5
Senior Member
IMO; If you want to check pulleys, water pump, A/C , P/S ect... remove serp belt and rotate them by hand.
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Pmarino (10-23-2019)
#7
Senior Member
Thread Starter
https://www.cartechbooks.com/techtips/serpbelt/
Belt noises can be diagnosed with a spray bottle of water. With the engine running and the sound audible, lightly mist the grooved side of the belt with water. If the noise disappears or lessens, but then shortly returns, the problem is probably a misaligned pulley. If the noise immediately increases after the belt is misted, the belt is slipping.
https://dayco.com.au/pageBANK/docume...bottletest.pdf
Belt noises can be diagnosed with a spray bottle of water. With the engine running and the sound audible, lightly mist the grooved side of the belt with water. If the noise disappears or lessens, but then shortly returns, the problem is probably a misaligned pulley. If the noise immediately increases after the belt is misted, the belt is slipping.
https://dayco.com.au/pageBANK/docume...bottletest.pdf
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#8
Senior Member
lightly mist the grooved side of the belt with water. If the noise disappears or lessens, but then shortly returns, the problem is probably a misaligned pulley.
Fascinating
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Last edited by Pmarino; 10-24-2019 at 10:27 AM.
#9
Super Member
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Had the same issue with cold starts with squealing noise that’s annoying and embarrassing but stops when engine warmed up. My fixed was the serpentine tensioner and issue resolved after changing it.