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Old 10-28-2008, 10:34 AM
Cat Fuzz Cat Fuzz is offline
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97 GTP supercharger rattle?

Just installed the rebuilt motor into this car and now I can here a dull rattle at idle. Can I run the car without the supercharger belt to troubleshoot? Could it be the supercharger rattling? I glanced over a TSB about the supercharger noses going bad.
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Old 10-28-2008, 11:54 AM
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BNaylor BNaylor is offline
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Re: 97 GTP supercharger rattle?

Quote:
Originally Posted by Cat Fuzz
Can I run the car without the supercharger belt to troubleshoot? Could it be the supercharger rattling?
Yes you may.

SC rattle is typically a worn out coupler. Bad snout bearings make a different sound.



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'08 Pontiac Grand Prix GXP (Dark Slate Metallic) - LS4 5.3L V8
'02 Oldsmobile Alero GL2 - LA1 3400 V6
'99 Buick Regal LS - L36 Series II 3800 V6
'03 Honda CR250R MX - 2 Stroke 250cc
'97 Pontiac Grand Prix GTP - L67 Series II 3800 V6 Supercharged (Sold)
Timeslip 08/12/06

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Old 10-28-2008, 12:50 PM
Cat Fuzz Cat Fuzz is offline
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Re: 97 GTP supercharger rattle?

Thanks for the response. I'm not familiar with SC's. Is the coupler difficult or expensive to repair?
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Old 10-28-2008, 01:27 PM
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Re: 97 GTP supercharger rattle?

We should have a coupler replacement procedure posted at our Tips & Maintenance forum. Part runs around $30. See link below for Eaton M90 Gen3 blower parts.

Click here

Just remove the SC drive belt, remove/drain the SC oil and remove the snout.

Plus you will need 1 and 1/2 bottles of GM supercharger oil. Part # 12345982.



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'08 Pontiac Grand Prix GXP (Dark Slate Metallic) - LS4 5.3L V8
'02 Oldsmobile Alero GL2 - LA1 3400 V6
'99 Buick Regal LS - L36 Series II 3800 V6
'03 Honda CR250R MX - 2 Stroke 250cc
'97 Pontiac Grand Prix GTP - L67 Series II 3800 V6 Supercharged (Sold)
Timeslip 08/12/06

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Old 10-28-2008, 01:58 PM
Cat Fuzz Cat Fuzz is offline
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Re: 97 GTP supercharger rattle?

Awesome! Thanks a million! I'll let you know what I find.
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