My engine becomes to make repeating in several frequency squeaking noises after start . It’s begun pretty sudden and firstly were hearing only while the engine is cold. After a wild those noise becomes constant.
First time, when I conceded that it might be a belt, I used Belt Tensioner Spray and it helps for a couple minutes. Now it quit working. I’m pretty sure that is one of auxiliary units or water pump bearings. I am suspecting that is a pump ‘cause frequency of noises is lower then alternator’s or AC compressor’s pulley speed. The question is how can I indentify those noises source? May I start engine for couple of minutes with belt off? I believe there are 4 bearings: alternator, AC compressor, water pump and belt tensioner. Did I miss something?
Thank you.
P.S. I changed my avatar.
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Take the belt off and rotate those you mentioned by hand. Loose or dry they will reveal themselves.
"Speed doesn't kill, suddenly becoming stationary does." - Richard Hammond
"Speed is just a matter of Money - How fast do YOU want to go?"-Mechanic from Mad Max-
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What is the age of the belt? Could it be the simple solution of changing the belt and putting on a goodyear gatorback? Mine would squeak nearly constant until I put a gatorback on.
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Transfercase vacuum switch change DO IT!!!
green02crew wrote:What is the age of the belt? Could it be the simple solution of changing the belt and putting on a goodyear gatorback? Mine would squeak nearly constant until I put a gatorback on.
I really doubt. The noise is differing. And the belt is almost new.
HenryJ wrote:Take the belt off and rotate those you mentioned by hand. Loose or dry they will reveal themselves.
Done. It was alternator. I think bearing lost its grease but not creaked. So I dismounted alternator and made some lube job. Either did tensioner, just in case. Now sound is OK.
Thank you all for input.
The photo that I offered was an automotive stethoscope that I once thought was exotic and expensive. They are showing up more and more in parts stores and are reasonably priced. I've used a short length of hose to do the same thing. Just helps isolate noises while motor is running.
f9k9 wrote:
[size=75][b]"For those who have fought for it, [i][color=red]FR[/color][color=white]EE[/color][color=blue]DOM[/color][/i] has a taste that the protected will never know."
[url=http://www.naxja.org/forum/showthread.php?t=73349]GUIDE TO SEARCHING. [i] (Some of the forum software is different but, it has helped me a lot.)[/i][/url][/b]
[b]"Those who don't know history are destined to repeat it." Edmund Burke[/b][/size]
I'm with Reed on the stethoscope. I have owned and used them for over 30 years now. Very effective tool and reasonably priced too. Try Harbor Freight for a decent price if they are too high in your local stores.
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roadrunner wrote:I'm with Reed on the stethoscope. I have owned and used them for over 30 years now. Very effective tool and reasonably priced too. Try Harbor Freight for a decent price if they are too high in your local stores.
Here we have stuff like these only in i-stores. It cost around $9 and needs to ship. Will think.
I use a long 3/8" extension held to the ear with a thumb.
"Speed doesn't kill, suddenly becoming stationary does." - Richard Hammond
"Speed is just a matter of Money - How fast do YOU want to go?"-Mechanic from Mad Max-
If at first you don't succeed - Don't take up Skydiving! - ThunderIIKE7CSK
. It’s begun pretty sudden and firstly were hearing only while the engine is cold. After a wild those noise becomes constant. 
only in i-stores. It cost around $9 and needs to ship. Will think. 
