LS1TECH - Camaro and Firebird Forum Discussion

What in the hell noise is this?

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Old Jan 14, 2010 | 01:09 PM
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Default What in the hell noise is this?
Just got back the car from the transmission shop. I had it rebuilt. I don't suspect foul play. However, I just noticed the noise last night. Maybe there's a connection. I don't know.

What could this knock/rattle/whatever be?

http://www.youtube.com/watch?v=lCOEmL9_uUc
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Old Jan 14, 2010 | 01:31 PM
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just bought a truck; got the firehawk for sale. Let me know.
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Old Jan 14, 2010 | 01:42 PM
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Sounds like a flexplate to me. Is the motor running fine other than that noise, good oil pressure etc? Get the car on some ramps, most of the noise should come from the bell housing and back of the motor if its the flexplate..
Last edited by 03Sssnake; Jan 14, 2010 at 01:49 PM.
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Old Jan 14, 2010 | 01:51 PM
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torque converter bolts?
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Old Jan 14, 2010 | 02:26 PM
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damm u just realized that loud *** noise?? lmao
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Old Jan 14, 2010 | 02:29 PM
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Originally Posted by carlos sauceda
damm u just realized that loud *** noise?? lmao
Didn't start till last night.
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Old Jan 14, 2010 | 02:44 PM
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oh that sucks... maybe u should go get ur money back or tell them to rebuilt that hoe with better parts
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Old Jan 14, 2010 | 02:46 PM
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Originally Posted by carlos sauceda
oh that sucks... maybe u should go get ur money back or tell them to rebuilt that hoe with better parts
Well, apparently, it's the water pump. That would explain the leaking coolant I saw last night. It did seem like the noise was coming from the front of the engine and the transmission guy noticed it, too, but I just wanted to make sure it wasn't transmission-related.

How different is replacing the LS1 water pump than on the LT1? Is it easier?
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Old Jan 14, 2010 | 03:01 PM
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You have to pull the belt About the hardest thing.
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Old Jan 14, 2010 | 03:09 PM
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Originally Posted by Shackleford
Well, apparently, it's the water pump. That would explain the leaking coolant I saw last night. It did seem like the noise was coming from the front of the engine and the transmission guy noticed it, too, but I just wanted to make sure it wasn't transmission-related.

How different is replacing the LS1 water pump than on the LT1? Is it easier?

VERY easy. Just make sure you get new gaskets along with the pump. Part number 12559271.


-Mike
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Old Jan 14, 2010 | 03:11 PM
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Originally Posted by chupr0kabra
VERY easy. Just make sure you get new gaskets along with the pump. Part number 12559271.


-Mike

Doesn't the water pump gasket usually come with a new/rebuilt water pump?
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Old Jan 14, 2010 | 03:32 PM
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Originally Posted by Shackleford
Doesn't the water pump gasket usually come with a new/rebuilt water pump?
Not sure. I've never replaced one, but I had to remove/re-install one when I swapped oil pumps on my Z28. For that process, I made sure to get new gaskets.


-Mike
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Old Jan 14, 2010 | 03:56 PM
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Good word of wise, always get new gaskets when replacing parts.
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Old Jan 14, 2010 | 11:25 PM
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Originally Posted by redz_02
Good word of wise, always get new gaskets when replacing parts.
yup, better to have too many than not enough....and if the new part does come with one, you can always either return the extra or keep it as a spare
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