Fleetwood FWD V8-252 4.1L (1986)
Transmission Cooler: All Technical Service Bulletins
A/T Oil Cooler - Flushing Procedure
Bulletin No. T
87-16
File in Group
7
Number
143
Corp. Ref. No.
777101
Date
Sept. '86
Figure 1 - Oil Cooler Flushing Tool
SUBJECT:
OIL COOLER FLUSHING PROCEDURE
MODELS AFFECTED: ALL THM TRANSMISSION/TRANSAXLES
This bulletin supersedes transmission oil cooler flushing information published in the THM 440- T4 Service Replacement Transmission Assembly
(SRTA) booklet dated August, 1985.
Transmission oil cooler flushing should be performed whenever transmission/transaxle replacement or overhaul service occurs. It is essential to flush the
oil cooler after SRTA installation, if fluid contamination is suspected or in any case of pump or torque converter replacement. A new, essential
transmission/transaxle oil cooler flushing tool, Kent-Moore number J35944 (refer to Figure 1), has been developed to properly flush the oil cooler and
will be shipped to GM dealers in September, 1986.
To insure proper transmission/transaxle system service, the following flushing procedure should be performed after the overhauled or replacement
assembly has been reinstalled in the vehicle.
Equipment and Materials Needed
Illustration (with call-outs) contained in this bulletin for identification of the various parts of the flushing tool. Kent-Moore Cooler Flushing tool, J35944
and biodegradable flushing solution* Measuring Cup (supplied with tool) Water supply (hot water recommended in all cases if available) Water hose (at
least 5/8 inch diameter) Air supply (with water and oil filter) Air chuck (with clip if available) Air pressure gauge Oil drain container Five gallon pail (or
larger - with lid) Eye protection Rubber gloves
*
Available by the gallon, J35944-20, or in a case of six, one gallon containers, J35944-CSE.
Preparation
1.
After overhauled or service replacement transmission/transaxle is reinstalled in vehicle, do NOT install oil cooler lines.
2.
Remove fill cap on tool and fill can with 0.6 liter (20-21 ounces) of Kent-Moore biodegradable flushing solution. Do not overfill or tool will need
to be recharged with air before backflush. Follow manufacturer's suggested procedures for proper handling of solution.