Hey Preacher1611,
Models:
(01, 02, 03, 04 Buick Rendezvous/Pontiac Aztek)
This 2001 through 2004 model year Rendezvous and Aztek evaporator case water intrusion message is being sent to all Buick and Pontiac dealers. Engineering has identified a potential water leak path from the evaporator case drain provision on all 2001 through 2004 Buick Rendezvous and Pontiac Aztek models.
Under certain high humidity and high ambient temperatures, when the vehicle is being driven for extended period of times using a very low blower speed, the condensation can reach the vehicle and wet the front carpeting. If the owners encounter this condition and subsequent water testing shows that there is no other cause for the water leak, an extension elbow should be installed to reduce the likelihood of any reoccurrence of water entry.
The part number recommended is 22542866. This part is also used on other General Motors products. Our current plan is to utilize this part in production as soon as possible and a bulletin is planned which will contain the breakpoints when the production changes to use the new elbow.
But before going through all of that I would take an air hose and blow backwards through the condensation tube to remove any obstructions.
Here is what one looks like in this article.
https://www.2carpros.com/articles/air-conditioner-leak-detection
Toward the bottom of the guide.
I can't find any pictures of yours for you. You might have to get under the vehicle to find it. It will be on the firewall, in the middle or on the passenger side.
Please let us know happens so it will help others.
Best, Ken
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Tuesday, November 29th, 2016 AT 6:32 PM