A/C compressor engages but no cold air. Air also only comes from defrost vents. Help!

thetruegears · May 6, 2012

So I bought this 1994 GT a few weeks ago and Im trying to fix the A/C. When I got it the compressor clutch wouldnt engage because it was so low on refridgerant so I added some yesterday and now the clutch engages. It blows air slightly cooler than the outside air and only out of the defrost vents and the small vents on the edges of the dash.

Does anyone have an idea of what might be wrong? Pic related, its the car.

CC'S95GT · May 6, 2012

There is a vacuum line that runs across the firewall from the driverside vacuum tree to the passenger side where's it enters the passenger compt. to control the vents. Your vacuum line is probably broken.

toyman · May 7, 2012

No vacuum to the dash controls default setting is defrost vents open. As stated, look at the vacuum line and the tee that provides vacuum to the controls. If the line is old and cracked I would start a vacuum line replace project. Easy enough to do.