Question about 1995 Chevrolet Lumina

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My 1995 chevy lumina air only works on the floor. can not get air flow to move to vents or defrost. the cruise control works. if this is caused by a vac leak how do i repair it.

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95 chev Luminas have a vacumn line running to a vacumn accumilator under driver side front fender liner that runs up to the firewall before running to switch. These are real bad about breaking. Run into this a lot.

Posted on Jan 29, 2013

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Posted on Jan 02, 2017

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SOURCE: Heat wont blow through heater or defroster vents

common problem, check under dash by the gas pedal if control arms are muving went selecting from ac to heat cuz this it is the control for the vents to go from ac to heat and to defrost.

Posted on Feb 23, 2009

  • 124 Answers

SOURCE: heater control 98 chevy s10 blazer

These trucks have a problem where moisture builds up in the heater box then freezes. When this freezes and you change your heater settings it breaks the shaft for the blend door. If this is what happened you should be able to look under the dash above and to the right of the gas pedal and you will see two vaccuum accuators one of them you should be able to wiggle around the linkage if it is broke. To fix this you need to remove the entire dash to get the heater box out which involves discharging the AC and draining the coolant because the heater core and evaporator come out. Please rate.

Posted on Dec 13, 2008

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SOURCE: 98 chevy tahoe 4x4 defrost quit working. I get

Check blend door motors under dash on heater box. Move heater control and see which one is not moving. That's the one thats broken or sticking!

Posted on Mar 02, 2009

  • 150 Answers

SOURCE: AIR FLOW STUCK IN DEFORST VENT WILL NOT SWITCH TO FLOOR OR AC VEN

The "MODE" door works off of an electric motor.

Posted on May 08, 2009

csmock132
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SOURCE: ac wont come thru vent on 97 chevy blazer

Check the vac lines for leaks on the drivers side rear of the engine compartment. The ones going to the vac ball attached to the hood.

Posted on Jul 11, 2010

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1 Answer

1998 Chevy Lumina - Air blows out of defrost and floor vents only. No air coming out vents on dash. Assistance needed.


Check vacumn line that runs from round accumilator under driver fender to check valve before it runs through fire wall. Runs under fender under battery . could be check valve or broken line. Had same problem it was broken line

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