Firebird V6-173 2.8L VIN L 2-bbl HP (1983)
Automatic Transmission Dipstick - Dipstick Tube: All Technical Service Bulletins
A/T - Oil Leak Diagnosis
Number 83-T-79
Section
7
Date
8/84
DIAGNOSING TRANSMISSION OIL LEAKS
Subject:
THM 700-R4
To diagnose a transmission oil leak properly the following procedure. should be used.
DIAGNOSIS PROCEDURE
The following procedure is performed on car:
1.
Clean all residual oil from the transmission (C.R.C.'s electramotive cleanser, or equivalent is recommended). Repeat cleaning process until all
residual oil is removed.
2.
Dust the entire transmission with a white powder (eg., leak tracing powder or spray foot powder). If residual oil is left on the transmission, it will
necessitate the cleaning and dusting procedure be repeated.
3.
After normal operating temperature (170~F) has been obtained, let the transmission stand for at least thirty (30) minutes (engine off).
4.
Inspect the transmission for leakage by following red oil traces left in the powder.
5.
Once the leak has been diagnosed as to location and type (wetness, moist, damp, etc.), refer to the following repair procedure:
IMPORTANT:
Steps 1-4 should be used when diagnosing any transmission for an oil leak.
6.
Repeat Steps 1-4 following repair of suspect leak source.
