Does your a/c blow from the vents even when the truck is off?

[uscgnazzario]

My a/c blows air from the vents sometimes even after my truck is off (hours later). I took it to the dealer and they said that it was normal because the size of the a/c system it does that to bleed off pressure. Does anyone elses truck do this?

 

[stevek]

Yes. I just turn the compressor off (aka push the snowflake button) before I turn off the AC and I don't have a problem. Also, using "Auto" and turning it to a desirable temperature is becoming my favorite feature (Especially when it's cold because it won't turn the heat on until the oil temp is high enough to blow hot air). It'll blow down at your feet at lowest speed and perfect temperature

 

[HOE-N-IT]

It is called afterblow and is normal if it is turned on but it can be programmed not to turn on. I believe the later models do not have it turned on at the factory. My 2011 doesn't do it. It has nothing to do with bleeding pressure from the A/C but rather to dry out the coil so you don't get a mold smell. You can have it turned off if it is draining your battery. Go here and scroll to the bottom of the page. http://www.sandyblogs.com/techlink/2011/05/