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Old 03-30-2001, 11:05 AM
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1990 SEC, After 1 or 2 minutes, A/C airflow redirects from center vents to defroster outlets. Any ideas anyone???? Looking at the vac circuits, I am suspicious of the 2 check valves. Am I on the right track, or is it likely something else? Thanks for any help to be offered.
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Old 03-30-2001, 09:12 PM
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Join Date: Mar 1999
Location: Suwanee, GA, USA
Posts: 4,712
More than likely you have a vacuum leak. This will cause these symptoms.

Check all of the vacuum servos on the air box behind the dash.
Donnie Drummonds
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Old 03-31-2001, 02:18 AM
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Thanks, sounds like a good weekend project.
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