a/c doesn't work

50

Asked by Apr 15, 2016 at 03:55 PM

Question type: Maintenance & Repair

2012 ram 3500 6.7 non-dually. a/c worked great.  Turned the a/c off and went into the store.  A/c hasn't worked since.  The comp clutch engages, the lights on the climate control knobs are on, but the a/c doesn't blow cold. Any ideas?

3 Answers

100,495

Do you hear the blower running? If so it could be a stuck blend door in the heater box.

13,035

Let the compressor run for a couple minutes, open the hood (be careful) locate the AC lines touch and see if one is cold suction / low side or if the pressure / high side is hot ... If the lines not cold you lost your R134a Freon.. Normally the compressor will not engage if the system pressure is to low. Now if the line is cold and the compressor runs the issue is in the cab try cycling through all the vent positions.

50

Thank you for the help brothers. I will check all of these and let you know what I find.

Your Answer

Shortcuts

Maintenance & Repair Experts

  • #1
    Tom Demyan
    Reputation
    179,890
  • #2
    dandyoun
    Reputation
    95,380
  • #3
    tennisshoes
    Reputation
    78,600
View All

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.