GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Chevrolet
🢒
2009
🢒
Express - AWD
🢒
Engine
🢒
Engine Cooling
🢒 Cooling Layer Removal
Special Tools
J 38185
Hose Clamp Piers
Drain the cooling system. Refer to
Cooling System Draining and Filling
.
Recover the refrigerant. Refer to
Refrigerant Recovery and Recharging
.
Disconnect the negative battery cable. Refer to
Battery Negative Cable Disconnection and Connection
.
Remove the air cleaner assembly. Refer to
Air Cleaner Assembly Replacement
.
Remove the surge tank. Refer to
Radiator Surge Tank Replacement
.
Remove the front grille. Refer to
Grille Replacement
.
Remove the front bumper. Refer to
Front Bumper Replacement
.
Remove the charge air cooler inlet and outlet ducts. Refer to
Charged Air Cooler Hoses/Pipes Replacement
.
Using the
J 38185
, reposition the radiator inlet hose clamp.
Disconnect the radiator inlet hose from the thermostat housing.
Raise and suitably support the vehicle. Refer to
Lifting and Jacking the Vehicle
.
Remove the radiator outlet hose to radiator retaining clip and disconnect the hose.
Remove the upper transmission cooler line to radiator retaining clip and disconnect the line.
Remove the transmission cooler line to auxiliary transmission cooler retaining clip and disconnect the line.
Remove the evaporator to condenser hose retaining nut (1).
Disconnect the evaporator to condenser hose from the condenser.
Remove the suction hose bolt (1) from the air conditioning (A/C) compressor.
Disconnect the suction hose (4) from the A/C compressor.
Disconnect the wiring ground located at the RH fender.
Remove the RH fender to core support brace bolts and remove the brace.
Disconnect the wiring ground located at the LH fender.
Remove the LH fender to core support brace bolts and remove the brace.
Disconnect the wiring harness electrical connector at the underhood bused electrical center (UBEC).
Disconnect the hood release cable at the hood release latch. Position the cable aside.
Remove the positive battery cable nut from the junction block and disconnect the cable.
Remove the auxiliary positive cable nut from the junction block and disconnect the cable.
Remove the positive battery to UBEC cable nut from the junction block and disconnect the cable.
Remove the 4 LH and 4 RH core support bolts (1).
Remove the core support and the cooling layer.