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    rickhuckins's Avatar
    rickhuckins Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Jul 24, 2009, 07:36 AM
    Ac not blowinf strong
    I have a 96 gmc yukon only blows on high but high feels like med not much air coming out of the vents blower mtr was replaced there is enough air for driver and passenger but not for kids in the back
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
    Uber Member
    		  
    #2

    Jul 24, 2009, 07:47 AM

    This link should help:

    https://www.askmehelpdesk.com/cars-t...ml#post1864159

    Attach a manifold gauge set and check the Low Side Gauge (28 psi) and the High Side Gauge (320 psi) pressures. The pressures given are for your 1996 GMC Yukon. This should allow you to completely test your A/C system.
    ABFORDGUY's Avatar
    ABFORDGUY Posts: 2, Reputation: 1
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    #3

    Jul 24, 2009, 05:47 PM

    If it only blows on high no matter what setting the fan speed is set at, sounds like you have a faulty blower motor resistor. Cheap enough to replace. I'd start with that.
    ABFORDGUY's Avatar
    ABFORDGUY Posts: 2, Reputation: 1
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    #4

    Jul 24, 2009, 05:48 PM
    Quote Originally Posted by TxGreaseMonkey View Post
    This link should help:

    https://www.askmehelpdesk.com/cars-t...ml#post1864159

    Attach a manifold gauge set and check the Low Side Gauge (28 psi) and the High Side Gauge (320 psi) pressures. The pressures given are for your 1996 GMC Yukon. This should allow you to completely test your A/C system.
    I think his complaint was the movement of air... not the temperature
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