S15/T15 Jimmy 2WD L4-119 1.9L VIN A 2-BBL (1983)
Seals and Gaskets: All Technical Service Bulletins
A/T - Oil Pan Leaks
Number:
84-69
Section:
7A (VIIc)
Date:
Feb., 1984
Subject:
OIL PAN LEAKS ON THM 700-R4 TRANSMISSIONS
Model and Year:
ALL MODEL YEARS - PASSENGER VEHICLES AND TRUCKS
TO:
ALL CHEVROLET DEALERS
FIGURE 1 - TRANSMISSION OIL PAN
FIGURE 2 - HEX HEAD SCREW AND CONICAL WASHER ASSEMBLY
Beginning July 25, 1983, a new transmission oil pan (Figure 1) and hex head screw and conical washer assembly (Figure 2) went into production for all
THM 700-R4 transmissions.
When servicing any THM 700-R4 transmission for transmission oil pan leaks, the following procedure should be used.
SERVICE PROCEDURE
1.
Diagnose source of leak to be certain leak is from the transmission oil pan area. (Refer to Service Bulletin 83-I-95 for diagnosing transmission oil
leaks.)
2.
If a leak is determined to be from the transmission oil pan area:
-
Remove the oil pan and gasket.
-
Clean the case oil pan face (with solvent) and visual inspect the case oil pan face for damage.
