AC off/on and Condensation
Thread Starter
Instructor
Joined: Oct 2013
Posts: 129
Likes: 1
From: toledo OH
AC off/on and Condensation
Out for a leisurely drive with the wife today and had the temp **** on the left set to all the way down to low, but made sure the AC light was off, and the image on the screen said the AC was off.
Parked in the garage, and as I was dusting the car off, I heard something sizzling, as if it were on frying/on fire. I look under neath and water is dripping on the passenger side, directly onto the cat converter.
1. Is that where it drips on everyone's C7?
2. Why/How did the AC compressor turn on?
Parked in the garage, and as I was dusting the car off, I heard something sizzling, as if it were on frying/on fire. I look under neath and water is dripping on the passenger side, directly onto the cat converter.
1. Is that where it drips on everyone's C7?
2. Why/How did the AC compressor turn on?
Safety Car
Joined: Jul 2001
Posts: 4,661
Likes: 67
From: Ocean Springs MS
Out for a leisurely drive with the wife today and had the temp **** on the left set to all the way down to low, but made sure the AC light was off, and the image on the screen said the AC was off.
Parked in the garage, and as I was dusting the car off, I heard something sizzling, as if it were on frying/on fire. I look under neath and water is dripping on the passenger side, directly onto the cat converter.
1. Is that where it drips on everyone's C7?
2. Why/How did the AC compressor turn on?
Parked in the garage, and as I was dusting the car off, I heard something sizzling, as if it were on frying/on fire. I look under neath and water is dripping on the passenger side, directly onto the cat converter.
1. Is that where it drips on everyone's C7?
2. Why/How did the AC compressor turn on?
Racer
Joined: Sep 2004
Posts: 493
Likes: 109
From: Central California
Based on info from this and a couple forums, as well as a little experimentation on ours, turning temp down to Lo forces the AC compressor on, even if the light and panel show it off. Put the temp on the lowest number, 61 on our car, and turn off the AC, and it seems like the compressor is off. Don't turn it all the way to Lo.
Safety Car
Joined: Aug 2004
Posts: 4,083
Likes: 190
From: IL / FL .
It took a while to figure out how to get the compressor to disengage. I thought the PCM and HVAC reflash might correct this but it didn't. I suspect many C7's will be driven around topless all summer with the compressor running even though the indicator light says it's off. So much for efficiency
Melting Slicks
Joined: Mar 2006
Posts: 3,249
Likes: 545
From: Land of the free, home of the brave...
Thanks....
I was about to ask the same question....was wondering how come it the air coming out of the vents was so cool when the AC light was off (but the temp was set to LO"
GM - Really???? How about a reflash so the owner is in control of the temp and not the car?!?!?!
GM - Really???? How about a reflash so the owner is in control of the temp and not the car?!?!?!
