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  1. #1
    Sr. Apprentice BlackHawk99's Avatar
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    Apr 2009
    Location
    Grand Blanc, MI
    Posts
    33

    Default Identify this heater core valve - 97 Tahoe

    Do any of you know what this part is for? It was leaking badly on my 97 Tahoe. It looks like some sort of flow valve. It's in the middle of the heater core hoses. There's one vacuum hose coming off the side that plugs into another diaphram mounted on the firewall.

    What would happen if I just elimate this thing? If not, what's it called so I can get a new one? I was hoping it could be a HELP part, but I doubt I'll be so lucky!



    1997 Chevy Tahoe
    2002 GMC Sonoma
    2000 Pontiac Grand Prix GTP
    1999 Pontiac Firehawk
    1978 Pontiac Trans Am

  2. #2
    Master Mechanic Dr_Zero's Avatar
    Join Date
    Mar 2006
    Location
    Sunny Florida
    Posts
    706

    Default

    You would probably have heat blowing all the time.

    You could disconect the heater hose from the core and to each other that would bypass the core till you go the valve, since its summer you probably wont need any heat or defrost.
    My trucks!

    1996 GMC Suburban SLT
    1997 GMC Yukon SLT

  3. #3

    Default

    Welcome to the site.

    Autozone sells the valve for $11.99

    http://www.autozone.com/autozone/cat...questid=123105

    You have any pictures of that 78 Trans Am?
    Gary

    99 K 1500 Suburban
    78 Silverado Big 10 w/factory 454
    00 S-10 Blazer
    1976 Trans Am
    1980 Honda CB900 Custom

  4. #4
    Sr. Apprentice BlackHawk99's Avatar
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    Apr 2009
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    Grand Blanc, MI
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    Default

    Quote Originally Posted by GaryL View Post
    Welcome to the site.

    Autozone sells the valve for $11.99

    http://www.autozone.com/autozone/cat...questid=123105

    You have any pictures of that 78 Trans Am?

    So funny...I found it on AZ's website shortly after I started this thread. I'm leaving in about 20 minutes to go pick it up.

    All the pics I have of the 78 are older (like three or four years ago), but I"ll start a new thread in the off-topic forum!!
    1997 Chevy Tahoe
    2002 GMC Sonoma
    2000 Pontiac Grand Prix GTP
    1999 Pontiac Firehawk
    1978 Pontiac Trans Am

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