A/C, Driver side warm, Pass side cold.

chitosls · #1 (**permalink**) 03-28-08, 08:58 PM

1999 cadillac seville is blowing cold air on passenger side, but not on the driver side. Can anyone tell me what is wrong?

**Ranger** · #2 (**permalink**) 03-28-08, 09:07 PM

Common symptom of low refrigerant on a dual zone system, but not quite low enough to set a DTC or disable the compressor. Have it serviced. Just needs a top off.

chitosls · #3 (**permalink**) 06-05-08, 01:36 PM

Thanks for the info., I just got around to it a couple weeks ago. I had my uncle top it off, and now it works beautifully, it's cold. I think he said he added 3lbs. to the system, once he did it, the driver side kicked in with some cold air.

jtpaajan · #4 (**permalink**) 06-05-08, 01:43 PM

I had the exact same issue (-99 Seville STS), but for me the solution was a faulty driver side air mix door actuator. The strange thing was that there were no codes, altough a failed actuator is supposed to set one.

**Ranger** · #5 (**permalink**) 06-05-08, 05:54 PM

Quote:

Originally Posted by chitosls

Thanks for the info., I just got around to it a couple weeks ago. I had my uncle top it off, and now it works beautifully, it's cold. I think he said he added 3lbs. to the system, once he did it, the driver side kicked in with some cold air.

ADDED 3 lbs!? YIKES. I seem to recall the system only holds 2.