Thread: Heat issue grandprix 2008 3.8

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  1. #61 Re: Heat issue grandprix 2008 3.8 
    Killa Bee Scottydoggs's Avatar
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    rocks? maybe dex boogers? were they brown?

    either way as long as the temp is right and you got heat, carry on right lol

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  2. #62 Re: Heat issue grandprix 2008 3.8 
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    Yes they were brown what are Dex boogers? Coolant it at 90C which is 194F is that a good temp.
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  3. #63 Re: Heat issue grandprix 2008 3.8 
    Killa Bee Scottydoggs's Avatar
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    thats a good temp. why your heat feels so much better now.


    the old dex coolant leaves this snot like brown crap in the engine, even after a flush and changing to green coolant there will be some of the old dex that has boogered up broke free form inside and is floating around in the engine. its shows up on the rad cap a lot still on my car still.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  4. #64 Re: Heat issue grandprix 2008 3.8 
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    Ha got you, thanks for everything. Why when I had it flush the heat was working good and then it just got weaker and weaker until I flushed the heating core again.
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  5. #65 Re: Heat issue grandprix 2008 3.8 
    Killa Bee Scottydoggs's Avatar
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    if a shop did the flush theres a chance they didnt bleed it well. or you already had the air in the heater core. a flush wont fix air in the core. its air bound already. you need to refill it manually.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  6. #66 Re: Heat issue grandprix 2008 3.8 
    I live here. 02NavyBlue's Avatar
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    Well he said they flushed it, and it worked great at first, slowly getting weaker and weaker over time. I'd say you have a lot of stuff floating around in the system, eventually getting trapped in the heater core.
    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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  7. #67 Re: Heat issue grandprix 2008 3.8 
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    We shall see how long it last for but I assume I should be good now. Anyways winter is almost done and I'm hoping my AC works fine as I had a leak last summer and had to replace the rad and then it was fine for abit and them stopped producing cold air and it turned out one of the metal copper pipe I believe got bent. Dam car always having issues with heat or AC lol. Thanks again I may be back
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  8. #68 Re: Heat issue grandprix 2008 3.8 
    Killa Bee Scottydoggs's Avatar
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    knock on wood my a/c has worked since the day i got it. one of the few things ive not had to mess with.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  9. #69 Re: Heat issue grandprix 2008 3.8 
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    what temp does the electric fans kick on? i replaced the 3 relays and the temp sensor too. the fans do kick on when i turn the A/C on so they work. am i missing another sensor. i cant find anywhere what temp they turn on. because while sitting in traffic it goes up but i want know when. i think i found it. i think its 230 degrees so it must be normal on cars with electric fans seeing the temp gauge move alot because the fans dont run til than . its my first car with electric fans. i used to drive cars that had the old fans that run with engine so the temp gauge barely moved with them
    Last edited by lifedeerhunter; 04-13-2015 at 04:34 AM.
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  10. #70 Re: Heat issue grandprix 2008 3.8 
    Killa Bee Scottydoggs's Avatar
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    they come on at 212. do you have a torque app? if so see what the temps say on that.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  11. #71 Re: Heat issue grandprix 2008 3.8 
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    No I dont.
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