Plenum Chamber Drain Valve - Distorted
18-44DATE: 12/94
MODEL: Sedan Range 1995 MY VIN 720001 - 725767
SUBJECT:
Plenum Chamber Drain Valve - Distorted - Water Entering ECM -
Service Action S619
ISSUE:
The plenum chamber water drain valve rubber flap may be incorrectly installed in some 1995 MY Sedan Range vehicles from VIN 720001 to 725767. In some cases the rubber flap may restrict the water drain tube causing water to leak down the "A" posts. The leaking water may damage the ECM.
ACTION:
At the next service opportunity, or during PDI, check the plenum chamber drain valve rubber flap (Illustration 1) of all 1995 MV Sedan Range vehicles within the VIN range. Follow the procedure described below.
PLENUM CHAMBER DRAIN VALVE CHECK AND REPAIR PROCEDURE
1. Visually inspect the drain valve rubber flap using a light and mirror.
Illustration 1:
^ If the drain valve rubber flap is in the correct position, as shown in Illustration 1 above, no further action is required.
Illustration 2:
2. If the rubber flap is pushed up, with one side open to allow a clear path for water drain (Illustration 2) or with one side in the correct position, reposition the flap to the correct position with the fingers. No further action is required.
NOTE:
The rubber flap must be free from the drain tube walls to allow water to drain.
Illustration 3:
3. If the rubber flap is pushed up into the drain tube, with both side restricting water flow (Illustration 3), reposition the flap to the correct position with the fingers and check the ECM for signs of water damage.
ECM WATER DAMAGE CHECK AND REPAIR PROCEDURE
1. Record all preset radio stations and disconnect the negative battery cable. Remove the lower right side "A" post trim to access the ECM.
2. Remove the ECM and mounting bracket Disconnect the ECM harness connectors.
3. Examine the ECM for signs of water damage.
^ Look for evidence of water stains or marks
^ Examine the ECM housing, connectors and harness for signs of moisture.
4. If there is any evidence of moisture or previous water leakage in the ECM, connectors or harnesses, replace the ECM.
NOTE:
Connectors, harnesses and surrounding areas must be thoroughly dry before a new ECM is installed.
5. Reconnect the battery and reset all radio stations and the clock
PARTS INFORMATION
CLAIM SUBMISSION PROCEDURE:
A warranty summary code has been assigned to this service action in order to simplify claim submission. The dealership will be reimbursed the labor time allowance and parts as indicated.
DCS Dealers
Submit claims using the appropriate summary code for the vehicle model and work performed. Follow standard campaign submission procedures.
Non-DCS Dealers
Submit claims on the Recall Campaign Summary form W-25. Enter the appropriate summary code for the vehicle model and work performed in the Repair Code column. Do not use the W-1 warranty claim form.