Thread: Coolant leak Please help

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  1. #1 Coolant leak Please help 
    GTP Level Member KwazrollinZ28GTP's Avatar
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    Im losing my mind, i have an L67 About to buy a l32 or sell the car if i cant fix this.

    I have a coolant leak (light smoke out of the exhaust) i keep getting coolant inside of the Intake manifold, and then its burning in the chamber.

    I have Done so far, replaced the head gaskets, ZZP aluminum intake gaskets, Blocked the Supercharger coolant ports AND tried a SECOND intake manifold.

    That's Typically the only thing that Stops a coolant leak Right????

    Is it possible i have a cracked block or Head? And how the hell could that happen????

    Also there is NO coolant in my oil just in the intake.
    1997 GTP 2DR RaceKAR
    1994 Z28 intake, small cam, exhaust leak
    2000 silverado 5.3l Z71 3.73gear posi, 3.5" lift 33" tires DIABLO Tune
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  2. #2 Re: Coolant leak Please help 
    GTP Level Member KeithGTP03's Avatar
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    Coolant Elbows?

    03 GTP...Its got pulleys and stuff.
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  3. #3 Re: Coolant leak Please help 
    GTP Level Member KwazrollinZ28GTP's Avatar
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    Brand new

    but that WOULDNT cause white sweet smelling smoke out of the exhaust
    1997 GTP 2DR RaceKAR
    1994 Z28 intake, small cam, exhaust leak
    2000 silverado 5.3l Z71 3.73gear posi, 3.5" lift 33" tires DIABLO Tune
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  4. #4 Re: Coolant leak Please help 
    GTP Level Member 01gpgt01's Avatar
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    Pop off the blower, Pressurize the system and see where it leaks.
    2001 GT. A few here and there mods http://www.streetfire.net/video/2001...ynp_208097.htm

    2009 Hummer H3 Solar flare premium
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  5. #5 Re: Coolant leak Please help 
    SLP, GTP or call it MUT! thunder71173's Avatar
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    I bought that reusable gasket with the yellow o rings and havnt had a problem with it and i just had to replace my m90 today?
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  6. #6 Re: Coolant leak Please help 
    GTP Level Member KwazrollinZ28GTP's Avatar
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    How would i go by pressurizing the blower
    1997 GTP 2DR RaceKAR
    1994 Z28 intake, small cam, exhaust leak
    2000 silverado 5.3l Z71 3.73gear posi, 3.5" lift 33" tires DIABLO Tune
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  7. #7 Re: Coolant leak Please help 
    GTP Level Member lambokit's Avatar
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    Have you checked for a blown head gasket? Check cylinder compression on each cylinder.
    Lambokit to be built!!!!!
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  8. #8 Re: Coolant leak Please help 
    GTP Level Member 01gpgt01's Avatar
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    No Im saying take the blower off and look into the intake and pressureize the coolant system and see where its leaking from. Just make sure the coolant passages are blocked off good to the TB.
    2001 GT. A few here and there mods http://www.streetfire.net/video/2001...ynp_208097.htm

    2009 Hummer H3 Solar flare premium
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  9. #9 Re: Coolant leak Please help 
    GTP Level Member KwazrollinZ28GTP's Avatar
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    Quote Originally Posted by lambokit View Post
    Have you checked for a blown head gasket? Check cylinder compression on each cylinder.

    Brand new felpro headgaskets/ bolts, zzp aluminum intake gaskets, And blocked off supercharger Coolant ports.

    Quote Originally Posted by 01gpgt01 View Post
    No Im saying take the blower off and look into the intake and pressureize the coolant system and see where its leaking from. Just make sure the coolant passages are blocked off good to the TB.
    Right i got what you meant, but im tired and said the wrong thing lol

    Whats the best place to blow air through?
    1997 GTP 2DR RaceKAR
    1994 Z28 intake, small cam, exhaust leak
    2000 silverado 5.3l Z71 3.73gear posi, 3.5" lift 33" tires DIABLO Tune
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  10. #10 Re: Coolant leak Please help 
    GTP Level Member 01gpgt01's Avatar
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    Radiator Pressure Tester Kit Through the Cap. DOnt go over 16psi. Id imagine you could rent one. Heres a cheaper one aswell. http://www.google.com/products/catal...ed=0CCkQ8wIwAA#
    2001 GT. A few here and there mods http://www.streetfire.net/video/2001...ynp_208097.htm

    2009 Hummer H3 Solar flare premium
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