At Fixya.com, our trusted experts are meticulously vetted and possess extensive experience in their respective fields. Backed by a community of knowledgeable professionals, our platform ensures that the solutions provided are thoroughly researched and validated.
1999 Chevy Suburban - My rear air vents had COLD a/c coming out but my front vents had Cool/Warmer air coming out. I added a can of freon and now it needs more. I can hear a hissing sound near the joint where two nuts meet on left side of engine compartment so it appears to be a leak. Can I unscrew the two nuts and re-tighten/ add a washer or something or do I need to take it to an A/C repair shop.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
Jun 25, 2009 - Hot air from vents-driver side and cool air from vents on passenger side. ... The driver's side vents were blowing out hot air, and everything else wasblowing cold. ... you'll literally have to restart your tahoe/yukon at every traffic light to keep cold air coming ... I was also getting air only out of the defrost vents.
? 3:14
https://www.youtube.com/watch?v=5lnd8UNcx6M
Aug 3, 2013 - Uploaded by South FL Mud Club
Suddenly hot air started blowing out the air vents only on the drivers... ... is a very helpful video ,I wondering if this part number apply for my 04 chevy tahoe? .... I have cold air out of thepassenger side, but warmer air out of the driver's side. .... 2003 Tahoe No Rear Heat Fix, Suburban, Yukon XL Repair!
Driver/passenger air vents blow hot then cold when using A/C. Back to cold when you restart the vehicle. Upvote (35) ... 2003 Chevrolet Tahoe ... I have a 02 Tahoe ,and the heat system is working only on the ceiling side of the car when turn.
The car uses the same freon in the front as it does in the rear. If the rear a/c is working, you either have a plugged evaporator in the front unit, or perhaps a bad heater switch. Try switching the heater to hot and see if it blows even warmer air from the front vents. If so, the heater switch is working and then it sounds like a plugged evaporator or maybe a plugged orifice tube. That is a good place to start looking. Hope this helps.
Its a leak ...probably concealed like in an evap housing or rear air unit and lines (if it has that). Prob at this juncture I would remove all the freon and bring system into a vaccuum with a pump and see if it will hold vaccum for an extended period of time. A bad leak will not hold srong vacuum very long and much cheaper than wasting expensive and enviromental un0friendly refrigerants.
I recenly had the same problem on my 1999 suburban, even after I replaced the whole ac system.
The heater valve, which is under the air filter area was not closing, causing heat to be blowing over the evaporator core. I used a zip tie to keep it in the closed position, and ac went from 70 degrees to 40. I think the vacuum switch is bad, 40 dollars (dealer part). You can also pull the vacuum hose off the switch, which is on the firewall and connect it dirctly to valve and it closes the valve, but fits loosley. Use silicone around vac hose if you go this route.
this is caused by a defective temperature control blend door actuator motor. Don't overhcahrge the system, if one part of dual climate works ok the problem is not the compressor or the system charge
×