Express 2500 V8-6.6L DSL Turbo (2010)
Transmission Cooler: Service and Repair
4L60-E/4L65-E/4L70-E - Automatic Transmission
Transmission Fluid Auxiliary Cooler Replacement
Transmission Fluid Auxiliary Cooler Replacement
Removal Procedure
1. Remove the grille assembly. Refer to Grille Replacement (Uplevel) (See: Body and Frame/Grille/Service and Repair/Grille Replacement
(Uplevel))Grille Replacement (Base) (See: Body and Frame/Grille/Service and Repair/Grille Replacement (Base)).
2. If equipped with an ambient temperature sensor, remove it from the bracket. Refer to Ambient Air Temperature Gauge Sensor Replacement (See:
Instrument Panel, Gauges and Warning Indicators/Outside Temperature Display/Outside Temperature Display Sensor/Service and Repair)
3. Place a drain pan under the vehicle.
4. Remove the cooler kit assembly, if equipped. Refer to
5. Disconnect the transmission oil cooler lines from the auxiliary oil cooler.
6. Remove the oil cooler lines from the auxiliary oil cooler. Refer to Transmission Fluid Cooler Hose/Pipe Replacement (See: Fluid
Line/Hose/Service and Repair/4L60-E/4L65-E/4L70-E - Automatic Transmission/Transmission Fluid Cooler Hose/Pipe Replacement).
7. Remove the 4 bolts securing the auxiliary oil cooler to the radiator support.
8. Remove the auxiliary oil cooler.
Installation Procedure
Caution: Refer to Fastener Caution (See: Service Precautions/Vehicle Damage Warnings/Fastener Caution).
1. Install the 4 bolts securing the oil cooler to the radiator support and tighten to 10 Nm (89 lb in).
2. Install the oil cooler lines to the auxiliary oil cooler and tighten to 23 Nm (17 lb ft). Refer to Transmission Fluid Cooler Hose/Pipe Replacement
(See: Fluid Line/Hose/Service and Repair/4L60-E/4L65-E/4L70-E - Automatic Transmission/Transmission Fluid Cooler Hose/Pipe Replacement).
3. Install the cooler kit assembly, if equipped. Refer to
4. Remove the drain pan.
5. If equipped with an ambient temperature sensor, install it to the bracket. Refer to Ambient Air Temperature Gauge Sensor Replacement (See:
Instrument Panel, Gauges and Warning Indicators/Outside Temperature Display/Outside Temperature Display Sensor/Service and Repair)
6. Install the grille assembly. Refer to Grille Replacement (Uplevel) (See: Body and Frame/Grille/Service and Repair/Grille Replacement (Uplevel)
)Grille Replacement (Base) (See: Body and Frame/Grille/Service and Repair/Grille Replacement (Base)).
Transmission Fluid Auxiliary Cooler Kit Replacement
