Question about 1998 Buick Park Avenue

1 Answer

HVAC air flow control

1998 Buick Park Ave. HVAC air flow control lights up and lights change from "floor" "mid" "windshield" but the flow itself does not change. It stays on "windshield" all the time. For a week or so it sounded like it was laboring to move the "flap" in the flow tunnel. How do I get to it, and how do I fix the problem? Please help.

Posted by on


1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 2 Answers

This is caused by the actuator mounted on the right side of the ducting under the dash on the right.
It is probably a cracked/split gear within the actuator housing.
The actuator is held on by two 5.5mm self taping screw bolts. the acuator itself is held together
by 4 posidrive screws. Carefully remove the actuator, undo the screws lift off the cover and inspect the n ylon gears looking for split/cracked gears.
Repair and replacement in reverse order. Do not power up the actuator until it is fully re-installed.
It is difficult to re-install if the acuator control is not in the neutral or horiztional position.
NB. removal & re-installation is difficult unless one removes rh side ducting and glove box (7 bolts)
and unclip the electrical circut box to the right of central duct-box.

Posted on Apr 28, 2009


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya Mechanic can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

1992 buick park ave fan will not turn off and blows only cold air. Nothing is working on the heat/air instrument panel.

The HVAC control module may have failed - in which case you will have to replace it. You can try resetting the HVAC controls by removing the negative lead on the battery for 30 seconds and then reconnecting it.

Dec 24, 2017 | Buick Cars & Trucks

1 Answer

CTM at on a 1998 buick park ave

My air wont blow out of my vents in front of me, only at the window and floor

Jun 30, 2012 | 1998 Buick Park Avenue

1 Answer

I have a 98 Buick Park Ave Ultra. It's a slight

If the light is on the engine computer will have a trouble code or codes, which may help you towards solving the problem. Have the computer scanned for the codes. Go from there. Good luck.

Feb 21, 2012 | 1998 Buick Park Avenue

1 Answer

1999 buick park ave. air blows uot windshield vent and floor vent but nothing out of middle vents. my dad is 80 and needs air. any thoughts

sounds like a vacuum leak either behind the climate control or the engine go to itll show a expanded view of ur system

Jun 09, 2011 | 1999 Buick Park Avenue

1 Answer

1998 Park Avenue: where is the fuse box on a 1998 buick park ave?...

i have a 98 buick park avenue
i got a problem running it. it start but when i hit the break pedal some light comes out the direction signal and it shuts off i check all the fuse

May 17, 2010 | 1998 Buick Park Avenue

1 Answer

Where is the over flow tank for the raditor on the buick park ave

on the drivers side toward the windshield looks like a place to add windshield washer fluid but much larger and is usually white and plastic with a black plastic lid that states engine coolant.

Aug 10, 2009 | 1999 Buick Park Avenue

1 Answer

Heat and AC vent problem.

most likley you have a vaccume leak somewhere but also the linkage to the door that that directs the air flow may be in a bind. another possability is the hvac controlls. hope this helps

Jun 08, 2009 | 1998 Ford Windstar

1 Answer

Can't find the blower motor resistor on a 1998 buick park ave. with automatic controls. Blown fuse, motor tested OK, relay tested OK, and controls buttons light up and appear OK.

I dont believe that is a resistor controlled circuit. I think it is a transistor controlled circuit mounted on the firewall cdcneter area.
you can have slow air inside but no high speed air if the module is defective.

May 05, 2009 | 1998 Buick LeSabre

2 Answers

1995 Buick Park Avenue - A/C air flows through windshield vents only and not midcar or floor vents.

You have a vacuum problem either to the AC control head or a problem with the ac control head.

Apr 24, 2009 | 1992 Buick Park Avenue

Not finding what you are looking for?
1998 Buick Park Avenue Logo

523 people viewed this question

Ask a Question

Usually answered in minutes!

Top Buick Experts


Level 3 Expert

77544 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22306 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6927 Answers

Are you a Buick Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides