1989 BMW 635 vents blow hot on front

1989 BMW 635
149,000 MILES • 6 CYL • 2WD • AUTOMATIC
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FASTSHIVY
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My 89 635csi is blowing ice cold air from the rear vents, but the front is blowing warm or ambient temperature air. Any ideas on what could cause this?
Aug 24, 2010 at 6:51 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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