2003 Oldsmobile Silhouette Logo

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Brandon Posted on Jan 27, 2013

Vent switch in my 2003 Oldsmobile silhouette won't switch from defrost to vent

5 Related Answers

emissionwiz

Marvin

  • 85242 Answers
  • Posted on Oct 11, 2008

SOURCE: drain the antifreeze on a oldsmobile silhouette

Under the bottom of the radiator on the there is a drain ****, you will have to raise the car and crawl under it to see it, be careful to not break it, the screw in plug is fragile, it will be hard to unscrew.

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Anonymous

  • 65 Answers
  • Posted on Jan 10, 2009

SOURCE: No air flow from defrost vent on my van.

Could be a vaccum line leaking not changing the vent flap to defrost

Terry Engel

  • 176 Answers
  • Posted on Jan 10, 2009

SOURCE: 2001 olds silhouette - no airflow at defrost vent when in defrost

When you set the Defrost does any air flow from other ports?

Anonymous

  • 106 Answers
  • Posted on Mar 06, 2009

SOURCE: 2002 Oldsmobile Silhouette ABS Light is on and

The first thing i would check is all 4 abs sensors at the wheels.You can do this with a volt meter set on ac voltage and spin the wheel if it generates voltage at all on the meter its good.

Anonymous

  • 32 Answers
  • Posted on Mar 09, 2009

SOURCE: venting problems with 2003 oldsmobile alero

is it electronic? or manual? The heater box is located behind your dash on pass. side. it's big project it requires recycling your a.c refigerent. If your comfortable with the project, buy yourself a book from your local auto parts store. This book tells you a complete tear down of your car. The book is Haynes

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Related Questions:

0helpful
1answer

Defrost, vent will not switch

ck for vacuum leak under dash by drivers side fire wall, and under dash .the defrost floor setting is default when system has problem.
0helpful
1answer

Why won't my 1999 chevy 1500c will not change from defrost to vent. when i move the switch on the dash I see the linkage move under the dash, but it wont turn off the defrost, and not a full blast

These trucks use a small electric motor to control the blend doors. You may have a door that is sticking or a motor that is binding up.
You'll need to remove the motor assembly and take a look.
1helpful
1answer

Heater & defroster works fine but inside car windows keep fogging

So you have the vent settings to blow out of the windshield vents and still have fogging?

You can dry out the air more quickly if you use the air conditioner setting. It sounds backwards, but this is exactly what the manual in my older car said to do. (Some cars are electronic control and won't let you do this however - or they do it automatically with the defrost vent settings).

For the older car, I would set the heat to the hottest setting and press in the a/c button. The a/c dries out the air, but it does not have to be set to run cold.

Another thing that could help is to make sure that you do not have the vents set for "recycling" the air. The picture should look like a u shapped arrow. Make sure it is not pressed in.
0helpful
2answers

AC/heat doesn't come out front vents. Can hear

try a vaccum leak under the hood. Look and listen for any little sounds of air blowing out. Also the door switch may not be turning to vent it may be stuck on one side, like defrost!
0helpful
1answer

Vents wont switch to vent/floor or defrost

check all the vacume lines going under dash
1helpful
1answer

No air flow from defrost vent on my van.

Could be a vaccum line leaking not changing the vent flap to defrost
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