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2001 cadillac deville blower (a/c & heat)

2001 cadillac deville blower (a/c & heat) works---no airflow thru "dash" vents -clicking noise @ times after starting car.

rear seat vents work
defrost vents work
foot vents work

Sounds like blend door problem on Ford explorers???

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Posted on Jan 02, 2017

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duster292
  • 19 Answers

SOURCE: How can I locate the blend door for the heater/defroster

Well FOR THE FIRST PROBLEM YOU PROBABLY NEED TO REPLACE THE THERMOSTAT IT IS MORE THAN LIKELY CLOSED SHUT NOT LETTING COOLANT INTO THE BLOCK TO CIRCULATE THE HEATED COOLANT 2ND THE UNIT IN WHICH CONTROLS THE TEMPERATURE OF THE INSIDE OF THE VEHICLE IS OR MAY BE BAD I WOULD START WITH THE THERMOSTAT FIRST BEING THIS IS USUALLY A MORE COST AFFECTIVE SOLUTION GOOD LUCK!

Posted on Nov 21, 2008

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  • 176 Answers

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

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

Posted on Jan 10, 2009

  • 7 Answers

SOURCE: heat not blowing 92 cadillac deville

check you fan, or door controls under dash,
leroy

Posted on Jan 12, 2009

  • 2976 Answers

SOURCE: no heat - ac stays on blowing through defrost vents

If you have the heater directed to the windshield, the AC will turn on. Move the control away from defrost.

Posted on Feb 01, 2009

  • 104 Answers

SOURCE: astro van 1997

There is a flap in your heater box that is controled by your vent switch by your heater controls. listen for a vacuum leak. that is common and hopfully the problem. there is vacuum lines that control the vent door that redirects the air to your vents.

Has your dash been messed with recently? if so i would check there first. you should hear a hissing if thats the problem.

Otherwise these also are common for that door flap to break and not switch NE more. thats the only 2 things that i can think of off th wtop of my head to be the problem. this would require the whole dash to come apart if its this problem

Michael
ASE certified

Posted on Feb 22, 2009

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1 Answer

99 caddilac deville, clicking noise under hood when heater goes on, coolant smell,and heat blowing thru defrost only


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Aug 14, 2009 | 2001 Cadillac DeVille

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check you fan, or door controls under dash,
leroy

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