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Fans not turning on!!

This is a discussion on Fans not turning on!! within the General Help forums, part of the LSx Technical Help Section category; We never did find out if you still have the air damn under the radiator to direct airflow up there. ...

  1. #21
    Moderator Cutlass's Avatar
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    We never did find out if you still have the air damn under the radiator to direct airflow up there. My gut tells me its either that or a headgasket failure. If you don't figure this out fast, you'll have a headgasket prob from all this overheating.

  2. #22
    Moderator Cutlass's Avatar
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    Did you see this other post on here about some overheating probs. He had a bad radiator.
    Check it out:
    Nonsense I Tell You

  3. #23
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    not air in the system! just drained it and filled it the way it said to! car overheated and popped the hood and heard loud bubbling in the radiator cap and radiator. this weekend i'm going to change the radiator i think.

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    Quote Originally Posted by mrz28m6 View Post
    not air in the system! just drained it and filled it the way it said to! car overheated and popped the hood and heard loud bubbling in the radiator cap and radiator. this weekend i'm going to change the radiator i think.
    Ok so no air in the system.....how old is the cap??
    A cap that won't hold pressure can cause an overheat condition.
    Wayyyyy cheaper than a radiator too.

    Once had a bad hose that had a tear inside.....outside looked normal but inside would collapse & block the flow. Always something!

  5. #25
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    Quote Originally Posted by mrz28m6 View Post
    not air in the system! just drained it and filled it the way it said to! car overheated and popped the hood and heard loud bubbling in the radiator cap and radiator. this weekend i'm going to change the radiator i think.
    How did you bleed out the air? Just by filling it to the top won't do it.

    I normally just crack open the crossover tube that connects to the head.

  6. #26
    Single Malt rbob93's Avatar
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    Quote Originally Posted by Ed Blown Vert View Post
    How did you bleed out the air? Just by filling it to the top won't do it.

    I normally just crack open the crossover tube that connects to the head.
    I believe he used the re-fill instuctions on installuniversity.com which does say to do that

  7. #27
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    i used installuniversity. you take off the hose that connects to the throttle body.

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    Quote Originally Posted by rbob93 View Post
    www.installuniversity.com

    follow the re-fill instructions given in the thermostat install
    Air in the system will definately cause an overheat condition
    yes air in the system can cause over heating, but not extreemely like going to the H!

    so Ill advice you to dismount the radiator/ or take it to a shop and check it for pressure, You know it is not wise to throw parts at it, cause that will lead to spening money, You might be surprised but sometimes radiators get cloggeed up with rust on the return side and that causes buildup leading to overheating. Try taking it to a radiator shop youll be surpriced that some will charge you about 50 bucks to unclogg it, clean it, and flush your whole system. its better than taking it to the shops or dealer.

  9. #29
    Moderator Cutlass's Avatar
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    Or you could spend $50 to $100 at a shop and have your overheating problem diagnosed.

  10. #30
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    cutlas i might end up doing that cause now the service engine soon light came on. a place out here said they would charge 80 bucks to diagnosis it.

  11. #31
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    ok ordered a radiator, took a week to get, installed it, took the car out and it overheated to the red zone!! i'm about to give up! anyone have any other ideas? the weird part is that i dont think that the car was actually that hot as i could put my hand the radiator.

  12. #32
    Senior Member Orcus79's Avatar
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    how soon did it over heat? Could be the temperature sending unit, could be the T-stat not opening and allowing coolant to flow. feel the hoses for soft spots.

  13. #33
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    it took a while to overheat! i already gutted the t-stat so i dont think its that.

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    well you arent gonna believe this sh*t the heater hoses were backwards. gonna pick the car up today so i'll let ya guys know.

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    ^^^ dude did you at least get a better performing radiator? I think your heater hoses will solve the problem but just to be shure if it overheats again take off the Tstat and run it like that if it doesnt over heat, then replace the t-stat.

  16. #36
    Moderator Cutlass's Avatar
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    Funny thing is, I've heard of that before. We had a couple Olds Aurora's 3.5 V6 with plugged heater cores that were causing the engine overheat.

  17. #37
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    hurraquio i replaced the radiator,t-stat,and water pump so i guarantee this thing wont overheat anymore! lol i wonder who was the idiot that mixed these hoses up as i never touched them.

  18. #38
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    Quote Originally Posted by mrz28m6 View Post
    hurraquio i replaced the radiator,t-stat,and water pump so i guarantee this thing wont overheat anymore! lol i wonder who was the idiot that mixed these hoses up as i never touched them.
    Glad you finally got it ironed out.....definately going to put this in my list of knowlege!


  19. #39
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    Quote Originally Posted by mrz28m6 View Post
    hurraquio i replaced the radiator,t-stat,and water pump so i guarantee this thing wont overheat anymore! lol i wonder who was the idiot that mixed these hoses up as i never touched them.
    did you take it to a shop somewhere? funny how if its been like that for years It recently decided to take a crap on you lol good to hear you got it fixed.

  20. #40
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    yea man i was thinking the same thing! but i just got the car and it probably took a little bit for the heater core to clog up?? anyways, i drove the car for an hour today and it seemed fixed!

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