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1 vent blows cold and other blows hot


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analog1lf
New User

Aug 5, 2008, 2:02 PM

Post #1 of 3 (1775 views)
1 vent blows cold and other blows hot Sign In

I have a 2001 cavalier and when i put the a/c on it blows cold out if the drivers side vent and hot from the middle vents and hot from the passanger side vent. if i switch the control to the defrost vent it blows cold from the vent on the dashboard under the winshield. Pleas help !!


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Aug 5, 2008, 10:36 PM

Post #2 of 3 (1771 views)
Re: 1 vent blows cold and other blows hot Sign In

A low charge can do this but usually the driver's side suffers first? Taking pressures (both) will help determine the state of charge.

Also possible is oil from a leak on evaporator that has collected dirt and can't transfer heat well on one side. If that is leaking you will probably find oil residue in the drain tube for the evaporator on firewall underhood area near center,

T



analog1lf
New User

Aug 6, 2008, 4:16 AM

Post #3 of 3 (1768 views)
Re: 1 vent blows cold and other blows hot Sign In

Tom, thank you very much for your help! I will check the pressure and hopfully its just low on ref.

thank you.






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