I have a 2000 Yukon XL that is somehow leaking water ...

Hello!

There is a GM service bulletin out detailing likely causes of passenger compartment water intrusion on this vehicle. here is a copy:

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Bulletin No.: 00-08-66-001

File In Section: 08 - Body and Accessories

Date: January, 2000

Subject:
Water Intrusion into Rear Compartment (Replace Primary weatherstrip /Adjust Doors if Necessary)

Models:
1999-2000 Cadillac Escalade
1999-2000 Chevrolet and GMC C/K Utility Models (Tahoe Z71 and Limited, Yukon Denali)
1999 Chevrolet and GMC C/K Utility Models (Tahoe, Suburban, Yukon)
With Cargo Doors or Endgate (RPOs ZW9, E55)
Built Prior to the Production Dates shown

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Condition
Some owners of the above listed vehicles may comment on water entering into the rear compartment area

Cause

Cargo Doors
The following conditions may cause water intrusion:

The weatherstrip carrier may be allowing water to enter at the upper radius of the door opening, traveling down to the sill area into the rear compartment

The rear door may be misaligned at the top, outer edge, causing "overcompression" of the primary and auxiliary seals at the left rear defogger (RPO C49) switch area.

The rear door may be misaligned side-to-side, causing poor contact to the auxiliary weatherstrip at the top of the door.

The left rear door vertical weatherstrip mucket (insulator) may not be horizontal on contact with the primary weatherstrip

Endgate
The current weatherstrip may allow water intrusion at the electrical contact on the left and right side of the rear compartment

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There is another, detailing forward door water leaks which result in the carpet becoming wet:

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Bulletin No: 01-08-64-001A

Date: March, 2001

Subject:
Front Floor carpet Wet/Musty Odor
(Replace Rear Door Water Deflector)

Models: < cellSpacing=2 cellPadding=1> < vAlign=top> <>2000-2001 <>Chevrolet and GMC C/K Utility Models (Tahoe, Yukon, Yukon Denali)

Some customers may comment that the front floor carpet is wet or has a musty odor

Cause

The rear door water deflector may not be seated along the bottom, allowing water to enter the vehicle and travel to the front carpet or carpet padding

Correction

Replace the rear door water deflector

Images available only to Customers.

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I hope this is helpful; if so, an accept would be most appreciated! thanks!

This answer doesn't really help me.

too vague and i have no idea if this is really what i am up against.
my water problem is not in the rear of the vehicle
therefore i am declining this answer, sorry.

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If you call your local GM dealer and describe the problem, and ask them to perform the repair procedure detailed in General Motors technical service bulletin #01-08-64-001A it will resolve the water intrusion problem that is causing your front floor carpeting (and rear floor carpeting, as stated in your question) to become wet... The water is entering at the rear door, and running forward under the carpeting to the lower spot in the LF of the floor pan area, where it soaks upward through the carpeting.

Edited by Steve7654 on April 26 2006 at 12:55pm

i have just read your follow-up to my reply and see that you may be on to something. I sure hope that you are right because this seems like an easier fix then what i was worrying about. I had called a local GMC dealer and talked witht he service department and this guy acted like he had no idea what the problem might be. "Bring it in for a water specialist to review the problem".

I am going to go ahead and accept your answer and hope that it is money well spent!!!
Customer (name blocked for privacy)

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