Thread: 99 gtp

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  1. #1 99 gtp 
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    Hey everyone the last few days I've been noticing a loud screamy type sound from my engine bay, near the supercharger and the belts, today my sc belt came off... It stayed on around the sc and around the crank but came off the two idlers down below... I took the belt off for now, just wondering what could cause this? Or if I should just get a new belt put on and be done with it...??
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    GT Level Member Sushamouf's Avatar
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    Try and spin all the pulleys and see which one is locked up.

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    2000 GTP - Stage 3 Heads - Gen V - 48# Injectors - Hardened Pushrods - Comp Limited Travel Lifters - LS6 Springs - Yella Terra 1.9 Rockers - S3 Phenolic Intercooler - N* TB - SD Headers - SR intake - ZZP 3.1 Pulley - Dyno Tune - Built 4T65E-HD - 12" Brake kit - SS brake lines - KYB GR2 Struts - 333WHP - 386WTQ
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  3. #3 Re: 99 gtp 
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    Seems to me like the supercharger one does not want to spin freely whatsoever... Does this mean I just need to replace that pulley? I hope so
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  4. #4 Re: 99 gtp 
    Moderator dsmuts's Avatar
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    If the supercharger is locked up you have to replace it but it more likely is an idler pulley.
    98 GTP modded 1.9's, sd headers, 3.4", zzp 1.0 230K miles scrapped.
    04 Comp G zzp stb's, UMI ta's, Speedbuilt sways, bully flo heads, XP, zzp headers, fsic, thrasher shift kit, 60#, 2.6" corsa 2.5", Inferno hood
    01 gt z7 turbo tep trans zzp motor
    08 g8 gt cam exhaust 11.87@118
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  5. #5  
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    Quote Originally Posted by 99GrandPrixGTP View Post
    Seems to me like the supercharger one does not want to spin freely whatsoever... Does this mean I just need to replace that pulley? I hope so
    Should spin with some resistance, and make a whooshing sound when you spin it. How are the tensioner and idler pulleys?

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    2000 GTP - Stage 3 Heads - Gen V - 48# Injectors - Hardened Pushrods - Comp Limited Travel Lifters - LS6 Springs - Yella Terra 1.9 Rockers - S3 Phenolic Intercooler - N* TB - SD Headers - SR intake - ZZP 3.1 Pulley - Dyno Tune - Built 4T65E-HD - 12" Brake kit - SS brake lines - KYB GR2 Struts - 333WHP - 386WTQ
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  6. #6 Re: 99 gtp 
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    Idler puller was seized completely, bought all three new pulleys and a new sc belt, should hopefully do the trick, hoping my tensioner is still good
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  7. #7  
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    You should be fine. Good luck.

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    2000 GTP - Stage 3 Heads - Gen V - 48# Injectors - Hardened Pushrods - Comp Limited Travel Lifters - LS6 Springs - Yella Terra 1.9 Rockers - S3 Phenolic Intercooler - N* TB - SD Headers - SR intake - ZZP 3.1 Pulley - Dyno Tune - Built 4T65E-HD - 12" Brake kit - SS brake lines - KYB GR2 Struts - 333WHP - 386WTQ
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  8. #8 Re: 99 gtp 
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    All is well, thanks
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