Copyright © 2004 General Motors Corp. 1–9
GENERAL INFORMATION
3. To help locate intermittents, it sometimes helps
to place the appropriate tester on the suspect
component or circuit and simulate operating
conditions—wiggle, pull, bump, and bend
while watching the tester.
1–6. PRESERVATION AND STORAGE
a. Storage (New Transmissions, Before Installa-
tion). New transmissions are filled with transmission
fluid and drained before shipment. The residual fluid
in the transmission provides adequate protection to
safely store the transmission without further treatment
for one full year if stored indoors, in conditions of nor-
mal climate, and with all shipping plugs installed.
b. Preservation Methods. When the transmission is
stored or inactive for an extended period (one or more
years), specific preservation methods are required to
prevent damage from rust, corrosion, and organic
growth in the transmission fluid. Preservation methods
described are for storage with or without transmission
fluid. The methods are the same whether a transmis-
sion is in or out of a vehicle.
c. One Year Storage (Without Fluid)
1. Drain the fluid.
2. Remove the vent assembly per Paragraph 5–11f.
3. Spray 30 ml (one ounce) of VCI #10
(or
equivalent) into the transmission through the
vent assembly hole. Also, spray 30 ml (one
ounce) through the fill tube hole.
4. Install the vent assembly per Paragraph 5–11f.
5. Seal all openings and the vent assembly with
moisture-proof tape.
6. Coat all exposed, unpainted surfaces with pre-
servative grease such as petrolatum (MIL-C-
11796, Class 2).
7. If additional storage time is required, do the
following at yearly intervals.
• Wash all external grease from the
transmission with mineral spirits.
• Remove all tape from openings and the vent
assembly.
• Repeat Steps (2) through (6).
d. One Year Storage (With Fluid)
1. Drain the fluid and replace the oil filter elements.
2. Fill the transmission to operating level with a
mixture of one part VCI #10 (or equivalent) to
30 parts TranSynd™ or DEXRON
®
-III
transmission fluid. Add 3 ml of Biobor
®
JF (or
equivalent) for every 10 liters (
1
⁄4 teaspoon per
gallon) of fluid in the system.
NOTE:
When calculating the amount of Biobor
®
JF
required, use the total volume of the system, not just
the quantity required to fill the transmission.
Include external lines, filters, and the cooler.
3. Operate the transmission for approximately
five minutes at 1500 rpm with the transmission
in neutral.
4. Make sure the transmission shifts through all
ranges and that the lockup clutch is also activated.
5. Continue operating the transmission in neutral
at 1500 rpm until normal operating tempera-
ture is reached.
6. If normal operating temperature is less than
107°C (225°F), shift the transmission to for-
ward range and stall the converter. Do not ex-
ceed 107°C (225°F).
7. As soon as the transmission is cool enough to
touch, seal all openings and the vent assembly
with moisture-proof tape.
8. Coat all exposed, unpainted surfaces with pre-
servative grease such as petrolatum (MIL-C-
11796), Class 2.
9. If additional storage time is required, repeat
Steps 2 through 8 at yearly intervals, except, it
is not necessary to drain the transmission each
year. Just add VCI #10 and Biobor
®
JF (or
equivalents).
CAUTION:
If the unit does not have a converter-out temper-
ature gauge, do not stall the converter.
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