2026 Chevy Tahoe Transmission Oil Cooler Line Diagram: Repair
The transmission oil cooler line diagram routes hot fluid from the transmission case lower feed port into the bottom cooler inlet. Cooled fluid exits the top radiator cooler port, passing through the auxiliary cooler before returning to the rear case port. Quick-connect fittings require proper clip seating and 18–22 lb-ft torque spec on threaded unions….
