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hvac

  1. Repairs, Maintenance, Help
    I have a customer with a 2005 Ram 2500 HD 4WD truck with Cummins Diesel. It came to me due to the classic internal door failure, the only non-failed door was the fresh air/recirc one. I replaced all the doors, including having to get the lower blend doors. After reassembling the beast I had a...
  2. Ram, pickups, new Wagoneer, commercial trucks
    I have a potential customer who approached me today (referral from another) She has a 2005 Ram 2500 Quad Cab with the Cummins Diesel. Hers has single zone controls. My questions (to start out) the parts list shows two units, one is designated HAA the other HAD. I believe I deciphered it enough...
  3. Repairs, Maintenance, Help
    Here is the symptom: If the heat control is at the maximum heat position, I get heat. Any other position results in unheated air I replaced the blend door actuator and ran the calibration routine. That did not resolve the problem. I have another vehicle with the same dashboard heater controls...
  4. Minivans · Pacifica
    My van has manual heating and AC, driver and passenger zones, plus rear heat and AC. The driver's temperature control was not outputting blended air, only unheated air or maximum temperature air. Moving the driver's side heat control slider from cool to hot had no affect on the air temperature...
  5. Non-Mopar Tech Support
    I have a question for you AC guys. Can you charge a system in a negative pressure (in a 500 micron or less Vacuum)?
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