1999 Pontiac Grand Prix blend door

1999 PONTIAC GRAND PRIX
120,000 MILES • 6 CYL • FWD • AUTOMATIC
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RWSMITH
  • MEMBER
  • 1 POST
driver side ac is notably warmer than passenger side. passenger side is very cold.
Aug 20, 2009 at 3:58 PM
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MMPRINCE4000
  • CERTIFIED EXPERT
  • 8,548 POSTS
The blend door is not operating properly, it is allowing outside air into one side.

The only fix is to remove dash and inspect/replace.
Aug 21, 2009 at 8:53 AM