A/C - Moisture In Driver Or Front Passenger Footwell
87 Moisture in driver or front passenger footwell
87 13 39
2024644/6
January 18, 2013.
Supersedes Technical Service Bulletin Group 87 number 12-34 dated November 9, 2012 for reasons listed below.
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Affected Vehicles
Condition
Moisture in the driver or front passenger foot well.
Technical Background
Due to a faulty and/or incorrectly installed condensation drain hose, condensation from the evaporator could enter the front foot well areas through a
gap between the body and the sealing surface of the drain hose.
Production Solution
Improved condensation drain hoses and improved installation process in production.
Service
1. Expose both condensation drain hoses and inspect for incorrect installation, kinks or obstructions that could compromise proper removal of
the condensation from the A/C system water drain. Refer to ElsaWeb >> Heating, Ventilation and Air Conditioning >> 87 Air Conditioning
>> Removal and Installation >> Condensation Water Drain Hose.
2. Inspect both drain hoses to identify if they are incorrectly assembled. An incorrectly assembled condensation drain hose is one where the
locating tab is pointing up (Figure 1). The correct orientation for this locating tab should be pointing down.
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When the snap ring is installed upside down, it allows condensation to leak out through a hole at the bottom of the snap ring (Figure 2). The
water can then migrate into either of the front footwell carpeted areas.
3. Should the snap ring have been incorrectly installed to the body of the vehicle, do not repair the condensation drain hose assembly. Replace
the hose using the repair procedure in ElsaWeb >> Heating, Ventilation and Air Conditioning >> 87 Air Conditioning >> Removal and
Installation >> Condensation Water Drain Hose. Improper installation at the factory may have damaged the snap feature (opposite the locating
tab), thus creating a poor seal to the body.
Service parts have been checked, but it is still possible to receive unchecked parts. Corrected parts will be marked in white on the locating tab.
This tab must be pointing down (Figure 3).
4. If the locating tab on the new part is in the wrong position (pointing up), then use a small set of needle nose pliers to gently pull the snap ring
out of the rubber hose and align it in the correct position (pointing down). Dipping the end of the hose in soapy water may make the process
easier.
5. Reinstall the snap ring in the correct position (Figure 4).
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6. Connect the hose to the body before connecting it to the A/C system water drain. Insert the locating tab (bottom of the hose) into the body hole
and press the top portion of the snap ring into place.
There should be an audible click to indicate the hose has made a firm connection.
7. Inspect the seal by gently tugging on the hose to ensure it is completely seated.
8. Connect the top of the hose to the A/C system water drain. Ensure that when installed there is no kink or twist in the hose. If necessary, install
a tie wrap at the A/C system water drain end of the hose if a more secure connection is required.
9. Repeat for the other side.
Warranty
Required Parts and Tools
Additional Information
All parts and service references provided in this TSB are subject to change and/or removal. Always check with your Parts Department and service
manuals for the latest information.
