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  1. #1
    Member red99ws6's Avatar
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    red
    1999 Trans Am WS-6

    2003 Silverado cooling system

    I know it isnt an LS1 but I have always had good luck here when I have a problem. I just changed the water pump on a 2003 Silverado 4.8 and need to know if there is a bleeder valve for the cooling system. It has no radiator cap so I figured it would have to have one, but cant find it. Thanks in advance.

  2. #2
    Senior Member Danger731's Avatar
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    I don't know but eddieIB may be able to tell ya sooner rather than me later today. fire him off a pm ..
    04 C5 A4 Torch Red - sold
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  3. #3
    Senior Member Orcus79's Avatar
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    black
    2002 WS6

    There has to be Rad cap of some sort. Might not be on the rad its self, but on the overflow tank. As for bleeders, look around the hose fittings, my guess is thats where the would be.

  4. #4
    Senior Member bigrondownhiller's Avatar
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    always dirty
    2013 Ram 2014 Caddy ATS

    If it did have a bleeder it would probably be on one of the heater hoses. Just follow them and see. Without a radiator cap how did you fill it with coolant?

  5. #5
    old timer blue02Z's Avatar
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    Sep 2005
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    Navy Blue Metallic
    2002 Z28

    no bleeder valve on it, just fill up the surge tank and drive it, it purges itself. recheck after you drive it

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