3000GT AWD V6-2972cc 3.0L DOHC Turbo (1991)
Transmission Cooler: Technical Service Bulletins
A/T Oil Cooler - Backflush Alternative
NO: TSB-99-23-011
DATE: October, 1999
MODEL: All A/T models
SUBJECT:
OIL COOLER BACKFLUSH ALTERNATIVE
PURPOSE
When repairing or replacing an automatic transmission, be sure to thoroughly flush the A/T oil cooler and verify that the ATF flows through the cooler at
a rate of at least one quart in 20 seconds or less. If the oil cooler is not flushed before installing the new A/T unit, the restricted oil cooler could cause
severe damage to the transmission.
There are now two accepted methods of backflushing the A/T oil cooler. MMSA's preferred method is to use a flushing tool such as OTC p/n
108-MLS-6906A, available from OTC or DES (call 1-800-727-6672).
However, if a flushing tool is unavailable, an acceptable alternative is to use an aerosol A/T Oil Cooler Flush solution, listed in the PARTS
INFORMATION section of this bulletin.
This bulletin describes how to use aerosol A/T Oil Cooler Flush solution as an alternative oil cooler backflushing method when a flushing tool is not
available.
AFFECTED VEHICLES
All models equipped with automatic transmission
PROCEDURE