Caprice Wagon RWD V8-305 5.0L (1991)
Evaporator Case: Customer Interest
A/C Evaporator Case - Water Leaks To Interior
Number:
91-78-1B
Section:
1B
Date:
October 1990
Corp. Bulletin No.: 031209
Subject:
WATER LEAKS FROM AIR CONDITIONING MODULE
Model and Year:
1991 CAPRICE
TO:
ALL CHEVROLET DEALERS
Condition:
Water leaks from the A/C module lower evaporator case, when making right turns or rapid lane changes.
Cause:
Inadequate sealing of the lower evaporator case to the A/C module.
Correction:
Remove the lower evaporator case and reseal with RTV sealant, using the following parts and service procedure as specified in the
Service Manual. Pages 1B1-27 - 1B1-29
Service Parts:
Quantity
Part Number
Part Name
1
1052915
Silicone Sealant - RTV
1
**52453695
Filter - Foam
** There is enough material in this part to do several repair jobs.
Parts are currently available from GMSPO.
The following optional RTV Sealer may be purchased locally.
1
59875
Loctite (R) Ultra Black-RTV
IMPORTANT:
THE FOLLOWING STEPS ARE IN ADDITION TO THE SERVICE MANUAL PROCEDURE ON PAGES 1B1-27-29.