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Discussion Starter · #1 · (Edited)
Hey guys, my engine is knocking and I didn't know if this was the sound of HLA's or what. So I got my PDA out and recorded some sounds. The first one is my 2.5 liter at idle. The second is the engine revved. And the third one is the exhaust note that peaks at about 4.5

http://www.geocities.com/kanjauo/

Thanks
Kanja.


btw, I love the sound of the exhaust note

:cool:
 

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My HLAs got bad, but certainly never made THAT sound. I don't really know what that is. Have you tried oil changes to full synthetic and an engine flush? If so does it still sound like that?
 

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Discussion Starter · #3 · (Edited)
No, I havent done an engine flush, what does an engine flush consist of? I also usually use Quaker State High Mileage Formula 10w30. Another thing about that noise, 9/10 it goes away when the engine is warm and usually (not always) only happens on cold starts. It's not as loud as it sounds on the WAV file but loud enough to where you can hear it in the car. Also, if you listen to the idle rev, it kinda coincides when the throttle is pushed. One more thing, if you listen to the exhaust, after it revs each time you can kinda hear a grinding noise, you have to listen closely.
 

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Kanja said:
Hey guys, my engine is knocking and I didn't know if this was the sound of HLA's or what. So I got my PDA out and recorded some sounds. The first one is my 2.5 liter at idle. The second is the engine revved. And the third one is the exhaust note that peaks at about 4.5

http://www.geocities.com/kanjauo/

Thanks
Kanja.


btw, I love the sound of the exhaust note

:cool:
Friction gear is bad. Replace your timing belt and the friction gear. Pretty cheap part, bunch of labor. The noise goes away when you rev the thing up high right?
-Garrett
 

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Noncorporeal said:
There is a dead cat in your engine?? Thats my best guess... :shrug:
We once got a racoon caught in the belts on my Taurus. It was a horrible sound and required much cleaning. The smell when the car was warm took weeks to go away.
 

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Discussion Starter · #10 ·
lol...well I wouldnt consider myself a master mechanic by any means, but I think I would notice a small animal in my car if there was one in there.
 
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