Transmission Fluid Cooler Flushing and Flow Test (J-45096): Notes

GM studies indicate that plugged or restricted transmission oil coolers and pipes cause insufficient transmission lubrication and elevated operating temperatures which can lead to premature transmission failure. Many repeat repair cases could have been prevented by following published procedures for transmission oil cooler flushing and flow checking. This procedure includes flow checking and flushing the auxiliary transmission oil cooler, if equipped.

IMPORTANT: Use the J 45096 or equivalent to flush and flow test the transmission oil cooler and the oil cooler pipes after the transaxle is removed for repairs.

The tool may be adapted for use on this vehicle by dealership personnel with a barbed hose connector and rubber hose obtained locally. This transmission has a transmission oil requirement which maybe slightly different than DEXRON® III ATF. However, flushing the cooler with DEXRON® III automatic transmission fluid is an acceptable service procedure. Very little fluid remains in the cooler after the flush procedure and the residual DEXRON® III ATF in the cooler is compatible with this vehicle's transmission fluid.

IMPORTANT: Only use the specified automatic transmission fluid after doing a repair on this transmission. Refer to Fluid and Lubricant Recommendations