1995 Cutlass Supreme A/C Question

[brockx]

What temperature should I expect at the dash vent. Should the fan be at lowest setting, recirculating or fresh air. It has the electromic control system. Thanks in advance.

Ron

[maxwedge]

Outlet temps vary with humidity and external temp, no set answer here. There are charts that will give the info based on those parameters, try Googling ac outet temps, use high fan and recirc for the coolest temps.

[brockx]

Originally Posted by maxwedge

Outlet temps vary with humidity and external temp, no set answer here. There are charts that will give the info based on those parameters, try Googling ac outet temps, use high fan and recirc for the coolest temps.

Thanks for the reply, I was hoping to draw something from someone that had checked theirs. I have not messed with A/C for a few years now, used to keep my 78 Vette (sold it about 4 years ago) topped off. It sat most of the year and needed a periodic squirt of freon. Procedure for it was fan at low speed, check temp @ center dash vent, maximum cool position (recirculate) and a fan blowing into radiator area. It would drive down to 30 to 35 degrees regardless of ambient.

I have noticed the newer vehicles with R134 don't seem to blow as cold. My wife's Cutlass doesn't get driven as much (1995 Supreme Conv. with 26,000 miles) and seems to be losing some cooling effort so I was looking for a guideline before I paid to get it checked. It was going down to 50 degrees yesterday with 95 ambient. Don't look right to me but again of the other vehicles I have had with R134 systems they didn't seem to have the punch of the old ozone killer of yester-years.

[serge_saati]

Normally, on a cutlass supreme, the A/C temperature should be 30-40°F cooler than the ambiant air. So your temperature is very good. It should be 55-65°.

It's not enough? You want to convert your car into a freezer or what?

Your settings should be: fan 4, recirculating, colder, thermo to the center dash.

[brockx]

Originally Posted by serge_saati

Normally, on a cutlass supreme, the A/C temperature should be 30-40°F cooler than the ambiant air. So your temperature is very good. It should be 55-65°.

It's not enough? You want to convert your car into a freezer or what?

Your settings should be: fan 4, recirculating, colder, thermo to the center dash.

Thanks for the input, not planning on storing beef in the car, just looking for a norm.
We just moved to South Florida and the air will be used more than before. The vent temp is higher than my past experience so I decided to get some input.

[serge_saati]

You can check for leak and add a 12 ounce bottle of refrigerant, it will be a little bit more cooler.

[maxwedge]

Careful just adding freon,, overfilling will kill the system.

[brockx]

Thanks for the advice from both of you. If I decide to add anything I'll have a shop do it. Things just aren't as simple under the hood as they used to be , and I really don't want to buy a set of gages.

[83k1500]

Originally Posted by brockx

Thanks for the advice from both of you. If I decide to add anything I'll have a shop do it. Things just aren't as simple under the hood as they used to be , and I really don't want to buy a set of gauges.

they are cheap. I got mine for $50.