1997 Buick Lesabre Heater/damper problem

DIVER7510

MEMBER
1997 BUICK LESABRE
V8
2WD
AUTOMATIC
70,000 MILES

The fan works. It only seems to blow out the driverside only. Are there dampers and where would I find them to check or repair them? What should the vacuum "pressure be?

Friday, October 31st, 2008 AT 12:04 PM

3 Replies

JACOBANDNICKOLAS

MECHANIC
108,192 POSTS

Hi:
The duct work for the HVAC is all under the dash board of the vehicle. However, to check all of it will require you to remove parts of the dashboard.

Joe

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Monday, November 3rd, 2008 AT 7:55 PM

DIVER7510

MEMBER
2 POSTS

Thanks Joe. My son and I removed enough of the dash to view the damper and it appears to work and looked like only one damper for the mid level vents. However, as my luck would have it, evrything was working at the time we tried to figure out what had happened. We couldn't duplicate the probvlem. My luck will be that on the coldest day it'll fail again to work properly.
Any clues as to why only the driver's side heat would work. Again, the fan has always worked. Only the air flow would come out of only one side. It looked like there is only one damper in the ductwork.
Tim

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Tuesday, November 4th, 2008 AT 8:44 AM

JACOBANDNICKOLAS

MECHANIC
108,192 POSTS

Hi Again:

Well, I'm glad it's working for you now. It most likely has something to do with a vacuum leak. However, they can be hard to find.

Let me know if you have any other problems in the future.

Joe

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Tuesday, November 4th, 2008 AT 9:31 AM