gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Transmission Fluid Cooler Flushing and Flow Test|Page 1711 > < Transmission Fluid Cooler Flushing and Flow Test|Page 1709
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1. Connect the DT 45096-30 - cooler flush adapter  (1) to the vehicle transmission oil cooler supply and return lines at the transmission.

2. Connect the black supply hose (1) to the return line, bottom connector of the transmission, and the clear waste hose (2) to the feed line, top

connector of the transmission, to the vehicle cooler lines. This is the reverse flow - backflush direction. 

Transmission Fluid Cooler Flushing and Flow Test|Page 1711 > < Transmission Fluid Cooler Flushing and Flow Test|Page 1709