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The passenger side climate control on my 96 park avenue ultra only blows out cold air. No heat!!

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  • Cars & Trucks Master
  • 1,669 Answers

Check out the 2 hoses that go to the firewall from the engine block. One of them has a mechanical valve that needs to open and close when you turn on the heat and turn up the thermostat inside the car. Have someone turn on the heat controls and move the thermostat back and forth from cold to hot while you look under the hood at the valve. If it isn't moving check its control cable to see if it is attached tightly to the arm of the valve.

Posted on Jan 09, 2013

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Posted on Jan 02, 2017

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  • 4 Answers

SOURCE: 99 park avenue blows cold

As snowbird said, it's most likely your passenger climate control system. Could be a short in a wire or a burnt acuator that moves the passenger door open and close. If you don't have the money or time to troubleshoot the problem you can pull down the glovebox and you'll see a metal rod about 8 inches long connected to the acuator. If you pop it off by the white connector, you can move it to full hot or cold. If it was the heater core it wouldn't matter where the air is comming out, it'd be the same temp.

It'll take you 5 minutes tops to simply check it by moving that door.

Good Luck

Posted on Oct 30, 2008

SOURCE: 1998 buick park avenue drivers side blows cold, passenger side hot

sounds like the drivers temp door actuator is not working should be located on the drivers side of the air box down by the gas pedal or center dash area.

Posted on Nov 06, 2008

  • 24 Answers

SOURCE: heat works on driver side, passenger side blows cold air.

Did you check your coolant level or was it low and you added to it at some point? If so the system my need to be bleed or worst case the thermostat is going bad.

Posted on Jan 03, 2009

ruteng1
  • 79 Answers

SOURCE: heat works on driver side, passenger side blows cold air.

Blend door for passenger side or blend door motor has failed. Very big job to remove dash and work on it. Except the door motor is accessable from the glove box.
Rudy

Posted on Apr 29, 2009

  • 5 Answers

SOURCE: Only cold air on passenger side

I would first check and make sure that you have enough Freon in the system, on climate control dual systems only one side will put out cold air if the system is low on Freon. Eventually, both sides will put out warm/hot air if the system continues to loose Freon. As with all leaks the system should be checked and then the leak causing component replaced/repaired.

Posted on Jun 10, 2009

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1 Answer

My 98 Buick Park Avenue has driver and passenger AC settings but the passenger side always blows hot air. Very cold on drivers side. Why??Can't stand the heat even when vent is closed.


Try unplugging the battery for 5 min's to re-sync the dual climate controls. If that fails it is likely that the air temperature control blend door is sticking to in the heated air position, this is either due to the door being warped and sticking inside the duct work or the electric actuator for the door being defective, both are usually replaced.

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I have a 1998 Buick Park Avenue when I turn the heat up to 90 it will blow hot air out on both sides of the car when I turn it down to 80 it blows hot air out of the passanger side and cold air out of the...


i just bought a 98 park ave and i had the iossue of hot on passenger side and cold out the driv ers i was told i had to replace the control head and both accuators...... i did a trani flush and it fixe my problem

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When the air is on the drivers side is warm and


Have you checked the freon level. If it is low only half of the evaporator will be cold causing the problem. Does it have dual climate control?

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Most likely a blend door issue inside the dash or a problem with the HVAC Control head.Hope this helps!!

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1998 buick park avenue drivers side blows cold, passenger side hot


sounds like the drivers temp door actuator is not working should be located on the drivers side of the air box down by the gas pedal or center dash area

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