Express 3/4 Ton Van V8-5.7L VIN R (1998)
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If not already connected, attach the discharge hose to the cooler return pipe. Place the hose into an appropriate drain container.
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After filling the transmission with DEXRON (R) -III or, if unavailable, DEXRON (R) -III automatic transmission fluid, or equivalent, start the
engine. Run the engine for 30 seconds. This removes any residual moisture from the oil cooler and the cooler pipes.
You should get a minimum of 1.8 liters (2 quarts) of transmission fluid during this 30 second run. If the flow of fluid is insufficient, disconnect
the oil cooler feed line at the radiator and restart the engine.
Depending on the flow rate, do the following inspections:
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Insufficient Feed Flow-Inspect the transmission for the cause.
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Sufficient Feed Flow- Inspect the oil cooler pipes and the fittings for restrictions or leaks. Repeat the oil cooler flushing procedure. Repeat
the check of fluid flow out of the return line. If the flow is still restricted, replace the transmission oil cooler.
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Remove the discharge hose.
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Reconnect the cooler return pipe to the transmission.
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Refill the unit to the proper fluid level.
