Thread: Coolant Leak

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  1. #1 Coolant Leak 
    SE Level Member blackthunder's Avatar
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    So i had major leak at what seems to be a plug right below the exhaust manifold at the front of the engine. What plug is it? and is this common? its at the shop right now but they dont open till the morning. Just want to get a heads up on what it might entail.

    I poured water in the radiator and it poured out as fast as it was going in from just under the exhaust manifold.
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  2. #2 Re: Coolant Leak 
    GrandPrix Junkie Bluemagic's Avatar
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    I believe that's the ect. The coolant temperature sensor.

    Sent from my HTC One using Tapatalk
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  3. #3 Re: Coolant Leak 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    This motor is spun upside down, but on the front there are 2 frost plugs that are right below the exhaust manifolds.

    Do those look like the spot they are coming from???


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  4. #4 Re: Coolant Leak 
    SE Level Member blackthunder's Avatar
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    yes, now when i had it up on the tow truck i took a look and saw alittle dribble out. didnt have any water with me anymore to be certain. but that looks exactly where it was comming from
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  5. #5 Re: Coolant Leak 
    I live here. 02NavyBlue's Avatar
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    Is that a second temp sensor?
    2006 Grand Prix GT S/C 109k - Modded Transgo Shift Kit, Gutted Airbox, Dash Cam, and Inlays. Retros soon to come.
    2002 Grand Prix GT N/A 127k - Same as 06 Plus: Trans Cooler, DIY Aux Input, LED lighting, Suspension Upgrades, Tint, Retrofits.
    Sold.
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  6. #6 Re: Coolant Leak 
    Gun nut and III percenter TexasTanker19kilo20's Avatar
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    That's one of two Knock sensors next to the freeze plugs.
    Goldie 98 Topaz Gold GTP (retired)/ Shadow 06 GTO 6.0 Phantom Black Metallic- traded in. Now cruising a 2005 GMC Sierra 2500 HD 4x4 with the always fun 6.0L
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  7. #7 Re: Coolant Leak 
    SE Level Member blackthunder's Avatar
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    im hoping its just that, should I tell them to flush out the dex cool and put in the green stuff? I do believe i still have the original LIM Gasket and I have an 04
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  8. #8 Re: Coolant Leak 
    Gun nut and III percenter TexasTanker19kilo20's Avatar
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    Yes, but your call.
    Goldie 98 Topaz Gold GTP (retired)/ Shadow 06 GTO 6.0 Phantom Black Metallic- traded in. Now cruising a 2005 GMC Sierra 2500 HD 4x4 with the always fun 6.0L
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  9. #9 Re: Coolant Leak 
    SE Level Member blackthunder's Avatar
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    so whats the downside of flushing out dexcool? i know the upsides, lol
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  10. #10 Re: Coolant Leak 
    Gun nut and III percenter TexasTanker19kilo20's Avatar
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    None, just make sure all dex is out or you will get brown sludge.
    Goldie 98 Topaz Gold GTP (retired)/ Shadow 06 GTO 6.0 Phantom Black Metallic- traded in. Now cruising a 2005 GMC Sierra 2500 HD 4x4 with the always fun 6.0L
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  11. #11 Re: Coolant Leak 
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    Dexcool allegedly lasts 100,000+ miles.

    If you can keep any trace of air out of your system for 100,000+ miles...
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  12. #12 Re: Coolant Leak 
    Turbo is the way to go. BillBoost37's Avatar
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    Cam.. you made me double take.
    I drink..so consider that when reading my posts.

    2010 Audi A6 Dual IC's
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  13. #13 Re: Coolant Leak 
    SE Level Member blackthunder's Avatar
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    turns out it was my block heater that popped. should i be worried as to why it popped it out?
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  14. #14 Re: Coolant Leak 
    Gun nut and III percenter TexasTanker19kilo20's Avatar
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    Things fail, the system is pressurized. In the last year I have blown two plastic coolant elbows, things happen.
    Goldie 98 Topaz Gold GTP (retired)/ Shadow 06 GTO 6.0 Phantom Black Metallic- traded in. Now cruising a 2005 GMC Sierra 2500 HD 4x4 with the always fun 6.0L
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  15. #15 Re: Coolant Leak 
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    Tex, did you switch to aluminum, or not a fan?
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  16. #16 Re: Coolant Leak 
    Gun nut and III percenter TexasTanker19kilo20's Avatar
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    Yes, I have aluminum elbow now, haven't had any problems.
    Goldie 98 Topaz Gold GTP (retired)/ Shadow 06 GTO 6.0 Phantom Black Metallic- traded in. Now cruising a 2005 GMC Sierra 2500 HD 4x4 with the always fun 6.0L
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