2000 Pontiac Grand Prix Weak Air Flow in Dash

2000 PONTIAC GRAND PRIX
165,000 MILES • 3.8L • 6 CYL • AUTOMATIC
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CEPEDA57
  • MEMBER
  • 1 POST
I have a 2000 Pontiac Grand Prix with dual air. The passenger side blows strong cold air but the drivers side has cold air but barely blows at all. The air also continues to blow at my feet even when I set it to my face only, just a bit weaker. What could this mean and what should I do?
Jun 24, 2014 at 10:21 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,246 POSTS
There are vent doors in the HVAC system system that direct the air to the location you want. One of them isn't working properly or is stuck. The only thing you can do is start checking. If I recall, this vehicle's vents are actuated by engine vacuum. Check to see if there are any leaks. under the dash or on the engine. If you are lucky, you may hear a hissing or whistling sound from the leak when the engine is running.
Jun 24, 2014 at 12:44 PM
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