The A/C is working and full of refrigerant but barely has any air coming out of the vents?

JR PAYNE

MEMBER
2002 JEEP GRAND CHEROKEE
4.7L
V8
4WD
AUTOMATIC
145,000 MILES

Then when you shut the vehicle off a few minutes will pass by then it makes a loud burping/fart sounds out from the dash. This will happen 2 or 3 times in a row and it's loud. Any help would be appreciated.

Friday, July 7th, 2023 AT 11:33 PM

3 Replies

KEN L

MASTER CERTIFIED MECHANIC
48,363 POSTS

This sounds like a mode actuator is not working. Can you please shoot a quick video with your phone so I can hear the noise? That way I can tell for sure what's going on. You can upload it here with your response. Here is the location of the actuator so you can check it out. Check out the images (below). Please let us know what happens.

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Saturday, July 8th, 2023 AT 12:35 PM

JR PAYNE

MEMBER
46 POSTS

Here is a video so you can hear the noise from the passenger side of the dash.

Video (Click to make bigger)

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Sunday, July 9th, 2023 AT 12:44 AM

KEN L

MASTER CERTIFIED MECHANIC
48,363 POSTS

Thanks for the video, it helps. Yep, that is a blend door or the blend door actuator causing the noise. I would lower the glove box and get up under the dash the best you can to try and feel where the noise is coming from. This will let you know which one is causing the noise.

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Monday, July 10th, 2023 AT 9:42 AM