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Old 08-11-2003, 03:35 PM
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Join Date: Dec 2000
Location: Fairfax County, Virginia
Posts: 856
126 Windshield Vents Getting A/C Vice Ambient in "split" position

My '91 350 SDL just started to blow conditioned (cooled) air to the windshield in the "split" switch position ... i.e. the position to the left of the econ position which is supposed to pass a/c air to main vents and un-a/c air to the windshield is blowing conditioned (cooled) air to both.

Here in muggy Virginia, the easy indication is that the cooler inside air blown on the inside of the windshield causes the moist warm air outside to condense on the outside of the windshield ... necessitating a swipe with the wipers to remove.

I recently repaired (put back together and resoldered) my OVP relay in the car ... any chance this would have any effect? If not, then likely a vacuum line or some other duct issue?

Thanks in advance for any advice.
George Stephenson
1991 350 SDL (200K and she ain't bent, yet)
former 2002 E320 4Matic Wagon - good car
former 1985 300 CD - great car
former 1981 300 TD - good car
former 1972 280 SEL - not so good car
a couple of those diesel Rabbits ...40-45 mpg
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