Quote:
Originally Posted by Yak
Sounds like a vacuum issue for the center vent flap. The center flap should open with ACC III and cooling. You're saying your center vents don't have the rotate-to-expand-the-butterfly closure thing? No Nike-like "swoosh" symbol on the nozzles?
Get a probe thermometed and put it in the outboard nozzle. Measure exhaust vent temps. Even with no air out the center you should get cooling from the outboard vents.
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Yeah, they do have the swoosh, and no they don't close. I bet the flaps are broken inside. My passenger side vent was broken like that and so is the driver's side. I have some spares lying around and will perform a swap. Center seem a little different size but I'll figure all this out. No cooling, no freon. Pressing on schrader valve no gas comes out. Pretty sure entire system is empty. I think I'll invest in a vac pump and play around trying to find any leaks. I have a dye gun but maybe a sniffer would be better.
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1985 300D 197K - Semi-Daily Driver Diesel
1998 Volvo V70 AWD 226K - Daily Driver 2
1998 Volvo S70 140K - Wife's DD
2003 GMC Sonoma ZR2 Option - Rusty Truck
THE BABY 1958 220S Sedan 66K All original, never restored and never will be. 
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