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    jessgamez's Avatar
    jessgamez Posts: 10, Reputation: 1
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    #1

    May 24, 2010, 05:00 AM
    What causes a water leak under the dashboard of a '93 gmc 1/2 ton truck?
    Water leaking from under dashboard
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
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    #2

    May 24, 2010, 06:26 AM

    Possibilities:

    . Condensation from the A/C evaporator coil, which is now overflowing--stick a long pipe cleaner up the drain tube.

    . Antifreeze from a leaking heater core or control valve.

    . Leaking windshield.
    jessgamez's Avatar
    jessgamez Posts: 10, Reputation: 1
    New Member
    		  
    #3

    May 24, 2010, 04:36 PM
    Where is the a/c drain line on a 1/2 ton '93 gmc truck?
    Leaking water from under the dashboard
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
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    #4

    May 24, 2010, 05:13 PM

    Along the firewall, on the passenger's side.
    jessgamez's Avatar
    jessgamez Posts: 10, Reputation: 1
    New Member
    		  
    #5

    May 25, 2010, 10:10 AM
    Where is the a/c drain line on a 1/2 ton '93 gmc truck?
    Is the a/c drain line by the firewall on a 1993 gmc 1/2 ton turck?
    debslater's Avatar
    debslater Posts: 2, Reputation: 1
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    #6

    Oct 24, 2011, 04:46 PM
    Bravado 2000 water under dash board please hellp
    debslater's Avatar
    debslater Posts: 2, Reputation: 1
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    #7

    Oct 26, 2011, 03:49 PM
    No mechanic can find drain hose
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