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Old 12-22-15, 08:14 PM   #1
jbalian
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Unhappy help me diagnose

Hey guys, I heard this bad noise coming from the engine this morning when I started my car, it went away after 2 minutes, it happened again when I was leaving work so I recorded it, you think it's just the belt or waterpump going bad?

https://goo.gl/photos/f1NRnkh8APkWVKm47

https://goo.gl/photos/pijadCzQPHJtSe7fA
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Old 12-23-15, 12:13 AM   #2
LjeksesES
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1. The serpentine belt (try to spray it with some belt dressing)
2. Idler or tensioner bearing;
3. Decoupler pulley;
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Old 12-23-15, 10:13 AM   #3
jbalian
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Thanks, I think you're right.

Found this on the RX forum http://www.clublexus.com/forums/rx-2...-rx-350-a.html

I'll take it to the garage next week.
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Old 12-23-15, 11:57 AM   #4
Lexus081
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Quote:
Originally Posted by jbalian View Post
Hey guys, I heard this bad noise coming from the engine this morning when I started my car, it went away after 2 minutes, it happened again when I was leaving work so I recorded it, you think it's just the belt or waterpump going bad?

https://goo.gl/photos/f1NRnkh8APkWVKm47

https://goo.gl/photos/pijadCzQPHJtSe7fA

i had this same problem but my noise was a bit different, was more of a chirping noise. i don't think its the serp belt.

my issue was the alternator, which had to be changed. cost was about $250 for the part, but the labour is brutal, about $600 worth of labour...

you can try to spray the belt with belt dressing (not wd40) and see if that helps

Also, can you go into your car, listen to the noise and once you hear it, turn the Air conditioner on and keep listening then turn the air conditioner off and keep listening, does it go away when a/c is off?
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