Question about 1998 Chevrolet Tahoe

1 Answer

2001 chevy AC

The AC works fine but the air will not flow thru the dash vents, all other functions work fine but the dash vents Any Ideas?

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

Find outlet selection motor (between accelerator & HVAC case). With ignition "off" unplug connector from motor, after 30 second lapse reconnect. Turn ignition switch "on", observe white gear & linkage for smooth motion. Smooth motion: You're in luck. No motion: GENTLY rotate white gear by hand. If motion begins; lube linkage with lithium grease. If still no motion: remove HVAC control head, unplug connector & clean circuit board connector strip. Reconnect & Retry. Lastly, outlet selection motor may have failed, requiring its R&R (lotsa fun!).

Posted on Jun 17, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Heating, AC and vent problem


The actuator door that is behind the dash that closes off the heater core from shooting hot air thru the vents might be your problem. When you turn on your ac the actuator shuts the door to prevent the air from flowing thru the heater core into the cabin, this may be your problem if everything else is working properly. Let us know.

Oct 03, 2013 | 1995 Buick Park Avenue

1 Answer

My ac unit is working but will not blow air out of the dash vents. The blower is working


Hey man if the blower is working and air is coming from your other vents i have a few ideas.First i would start by checking your vent selection switch something may be stuck where the dash vents open. If the selector is fine you should try checking the ducting behind the dash it could have come apart or simply be cloged where it routes air to your dash. hope that is helpfull.

Aug 11, 2012 | 2004 Chevrolet Tahoe

1 Answer

No air coming thru vents in dash only going to floor


Common problem - depending on the year and model, you probably have a blend door that is stuck or not moving.
The blend doors behind the dash direct the flow of air. They are moved by vacuum or electric motors.

Jun 28, 2012 | Jeep Cars & Trucks

1 Answer

AC works fine at first then stops blowing thru dash vents and will only blow thru defrost and floor vents. this is an 02 chevy trailblazer. It this an expensive thing to fix?


It's most likely a vacuum line, look under your hood (close to the cowl panel) for a disconnected, cracked or broken vacuum line.

In some rear cases, it could be the vacuum switch (in dash). Or vacuum diaphragm (under dash).

Hope this helps you ???

Jun 21, 2011 | 2002 Chevrolet TrailBlazer

1 Answer

Air flow to defrost or floor not switching stays on dash vents


cannot switch from defrost to panel airflow 2001 chevy silverado

Oct 06, 2009 | 2001 Chevrolet Silverado

2 Answers

Air blend doors do not work. Air blows from defroster vents


check or loss of vacuum to mode control switch in dash ac control. these are not blend doors, they are air flow control, a blend door controls the air temperature not where it comes out.

Aug 14, 2009 | 2001 Cadillac DeVille

1 Answer

No air flow thru ac vents ,air does flow thru floor vents


sounds like your directional door in you air box under dash is not working.test with tested while moving controls.check for current.

Aug 03, 2009 | 2002 Chevrolet Camaro

1 Answer

A/c vent issue


heater blowing cold when engine idleing,works good when rpm are up. what is problem? pete

Jun 06, 2008 | 1997 Nissan.5 Altima

Not finding what you are looking for?
1998 Chevrolet Tahoe Logo

209 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

61249 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6812 Answers

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

Answer questions

Manuals & User Guides

Loading...