97 Grand Prix GT AC issues

**Burgandy85SS** · 07-01-2010, 06:38 PM

Bought a new daily/winter beater and have an issue with the ac, it blows out the passenger side nice and cold but on the driver side its not nearly as cool.
I do not have the elcetronic climate control or the passenger controls. Its just the old 3 knob style. Any ideas would be appreciated.

Chris

**brotherbenn83** · 07-01-2010, 11:19 PM

A/C undercharged. I had this happen on a Trailblazer recently, due to low freon the compressor was not cycling long enough. You would get cold air on the p/s because of it being closer to the evaporator core, but by the time it made it to the d/s vents it was 10-20 degrees warmer. You should get it charged/dyes so you can have it checked for leaks, if it is in fact low.

**lilws6** · 07-02-2010, 09:51 AM

what he said. the evap is on the pass. side. have the system evac. vacuumed and recharched with dye to see if its leaking i doubt it but. since it needs a recharche any way put dye in it

**brotherbenn83** · 07-02-2010, 06:26 PM

If it is low on freon, it's because it is leaking. The a/c system is a SEALED system. If it is low, it went somewhere.

**lilws6** · 07-02-2010, 07:01 PM

well yea but most systems leak down slowly over time. It may not have to great of a leak. the dye would tell you where it would be coming from tho.

**Burgandy85SS** · 07-04-2010, 03:09 AM

Well im taking it in this week and there going to check to see if it charged up properly and if not top it off. Hopefully its a simple fix its a $800 car not stickin much into it.