Removal Procedure
- Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
- Remove the engine cover. Refer to Engine Cover Replacement .
- Place a clean drain pan under the radiator drain cock.
- Loosen the radiator drain cock (1).
- Drain the cooling system. Refer to Cooling System Draining and Filling (LSA, LS3, LS7, L99 Static Fill)Cooling System Draining and Filling (GE 47716) .
- Tighten the radiator drain cock (1).
- Relieve the high side fuel system pressure. Refer to Fuel Pressure Relief .
- Discharge the air conditioning (A/C) system. Refer to Refrigerant Recovery and Recharging (Belt Driven Compressor) .
- Remove the front tires. Refer to Tire and Wheel Removal and Installation (Without RT2)Tire and Wheel Removal and Installation (With RT2) .
- Remove the transmission. Refer to the appropriate procedure:
- Transmission Replacement for the 6L45/6L50/6L80/6L90 transmission
- Transmission Replacement for the Tremec 6-speed transmission
- Remove the oil pan drain plug (1) from the oil pan allow the oil to drain completely. Refer to Engine Oil and Oil Filter Replacement (LSA, LS3, L99) Engine Oil and Oil Filter Replacement (LS7) .
- Install the oil pan drain plug (1) and NEW O-ring seal (2) and tighten to 20 N.m (15 lb ft).
- Remove the air cleaner outlet duct hose. Refer to Air Cleaner Resonator and Outlet Duct Replacement (L99, LS3)Air Cleaner Resonator and Outlet Duct Replacement (LSA)Air Cleaner Resonator and Outlet Duct Replacement (LS7) .
- Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement (L99, LS3)Air Cleaner Assembly Replacement (LSA)Air Cleaner Assembly Replacement (LS7) .
- Remove the check valve (1) from the vacuum brake booster.
- Release the clamp and remove the power brake booster vacuum hose (1) from the vacuum port on the left side of the intake manifold.
- Disengage tension on the heater inlet rear and outlet hose clamps (1) at the heater core using J-38185 pliers.
- Remove the heater inlet rear and outlet hose (2) from the heater core.
- Remove A/C evaporator thermal expansion valve tube nut (1).
- Remove A/C evaporator thermal expansion valve tube (2) from HVAC module reposition.
- Disconnect electrical connectors (1,2, and 3)
- Disconnect the engine harness (1).
- Disconnect all other necessary engine harness electrical connectors. Refer to Harness Routing Views .
- Working under the vehicle, use paint in order to place match marks on the intermediate steering shaft (1) and on the steering gear pinion shaft (3).
- Remove the steering gear pinion bolt (2).
- Remove the thread locking patch and clean the threads on the steering gear pinion bolt.
- Disconnect the intermediate steering shaft from the steering gear pinion shaft.
- Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
- Remove the brake hose bracket bolt (1) from the front suspension strut.
- Remove the brake hose bracket bolt (2) from the wheelhouse panel.
- Remove and discard the brake caliper bolts (1).
- Remove the disc brake caliper and bracket assembly and support with heavy mechanics wire or equivalent.
- Remove the front stabilizer shaft nut (1) and discard the old nut.
- Reposition the stabilizer link (2).
- Paint a reference mark (2) of the strut (1) to the steering knuckle (3).
- Remove the front strut nuts (1) and the bolts (2).
- Using a hydraulic floor jack, support the steering knuckle.
- Remove the front bumper fascia. Refer to Front Bumper Fascia Replacement (Base,RS,SS)Front Bumper Fascia Replacement (ZL1)Front Bumper Fascia Replacement (Z28) .
- Convertible vehicle, remove the front end lower structure brace.
- Remove the rear frame bolts (1).
- Using a suitable engine support table or equivalent, lower the vehicle until the drivetrain and front suspension frame contacts the engine support table.
- Remove the front (2) and rear (1) frame bolts.
- Lower the frame with the engine until clear the body and raise the vehicle at full height.
- Remove the engine mount nuts and remove the engine from the crossmember.
- Transfer components as required. Refer to the appropriate procedures.
- If any malfunction occurred which may have caused debris to enter the oil supply the oil cooler must be replaced. Refer to Engine Oil Cooler Replacement (L99, LSA, LS3) Engine Oil Cooler Replacement (LS7) .
- For vehicles equipped with dry sump oiling, if any malfunction occurred which may have caused debris to enter the oil supply the main tank must be cleaned and inspected. Refer to Oil Tank Cleaning and Inspection (LS7) .
- For vehicles equipped with dry sump oiling, if any malfunction occurred which may have caused debris to enter the oil supply, the oil tank lines and auxiliary tank must be replaced. Refer to Oil Tank Outlet Hose Replacement , Oil Tank Inlet Hose Replacement , and Oil Tank Replacement .
Refer to Fastener Caution .
Cap or tape off the open A/C components immediately to prevent system contamination.
The brake caliper bolts must be replaced any time they are removed. Do not reuse the brake caliper bolts.
Support the brake caliper with heavy mechanic wire, or equivalent, whenever it is separated from its mount and the hydraulic flexible brake hose is still connected. Failure to support the caliper in this manner will cause the flexible brake hose to bear the weight of the caliper, which may cause damage to the brake hose and in turn may cause a brake fluid leak.
After the nut has been removed, discard and replace with NEW.
Adjust the hydraulic floor jack so that the front strut has a small amount of pressure on it.
Refer to Engine Oil Tank Debris Caution .