1996 AC troubles....forced air fades slowly from vents - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Tropical Snowstorm · 05-12-2014, 05:34 PM

If I understand your post it's an air flow, not A/C operation that's the issue. I'd look in to the blend door, from what you're saying it sounds like it is getting stuck between two positions and blocking the air to the vents. Once you turn it off the pressure releases and the door opens back up until it slowly closes from the air flow. Never had a GMT400 apart in there, only heater cores, so I could easily be wrong but that's where I'd start.

05-12-2014, 05:34 PM	#10
Tropical Snowstorm Lurky lurky Join Date: Sep 2005 Location: Maryville, TN Posts: 553	Re: 1996 AC troubles....forced air fades slowly from vents If I understand your post it's an air flow, not A/C operation that's the issue. I'd look in to the blend door, from what you're saying it sounds like it is getting stuck between two positions and blocking the air to the vents. Once you turn it off the pressure releases and the door opens back up until it slowly closes from the air flow. Never had a GMT400 apart in there, only heater cores, so I could easily be wrong but that's where I'd start. __________________ Current slooooow build 1972 Cheyenne Super 1972 C10, sold thread 1970 Camaro RS Family Heirloom



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