Cylinder Head LH: Removal

WARNING: This page is about a different variant/trim than selected.

NOTE: During engine repair procedures, cleanliness is extremely important. Any foreign material, including any material created while cleaning gasket surfaces, that enters the oil passages, coolant passages or the oil pan, can cause engine failure.

With the vehicle in NEUTRAL, position it on a hoist. Refer to: Jacking and Lifting - GT500 - Overview .
Release the fuel system pressure. Refer to: Fuel System Pressure Release .
Disconnect the battery ground and positive cables. Refer to: Battery Disconnect and Connect .
NOTE: Make sure to minimize damage to sealer foam and avoid pulling apart dash seal brackets from retainer pins. Excessive damage may allow engine noise, fumes, air or water to enter the passenger compartment.
1. Remove the steering column dash seal nuts.
2. Loosen the dash seal.
3. Hand start the dash seal nuts.
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Using a holding device, hold the steering wheel in the straight-ahead position.

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Drain the engine cooling system. Refer to: Engine Cooling System Draining, Vacuum Filling and Bleeding .
Drain the supercharger cooling system. Refer to: Supercharger Cooling System Draining, Filling and Bleeding .
Remove the following items:
1. NOTE: No disassembly of the hood is required after the hood is removed.
  
  Hood. Refer to: Hood .
2. Supercharger. Refer to: Supercharger .
3. LH camshafts. Refer to: Camshaft LH .
1. Remove the nut and disconnect the ground strap.
2. Reposition the insulator and disconnect the exhaust CMP sensor.
3. Disconnect the RFI capacitor and the intake CMP sensor.
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Detach the wiring harness retainer from the cylinder head.

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Remove the bolts and the coolant outlet.

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Remove and discard the gasket.

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Remove the LH catalytic converter. Refer to: Catalytic Converter LH .
Remove and discard the engine oil filter. Refer to: Engine Oil Draining and Filling .
Remove the bolts and disconnect the oil cooler hoses.

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Remove the LH engine mount nut.

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Remove the RH engine mount nut.

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NOTE: Do not position the legs of the Engine Support Bar on the fenders. Instead, the legs should be positioned on the body structure. Failure to follow these instructions may result in body damage.

Install Special Service Tool: 303-639 Support Bracket, Engine., 303-F070 Support Bar, Engine.

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Using the special tools, raise the engine 25 mm (1 inch). Use Special Service Tool: 303-F070 Support Bar, Engine., 303-639 Support Bracket, Engine.

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WARNING: Do not reuse steering column shaft bolts. This may result in fastener failure and steering column shaft detachment or loss of steering control. Failure to follow this instruction may result in serious injury to vehicle occupant(s).

WARNING: DO NOT hammer, pry or force steering column and column shafts during installation or removal. Failure to follow this instruction may cause damage to steering components that could lead to loss of steering control during vehicle operation and could result in serious personal injury or death.

WARNING: DO NOT attempt to remove or install the steering column lower u-joint at the steering gear without first loosening the steering column dash seal and fasteners. Failure to follow this instruction may cause damage to steering components that could lead to loss of steering control during vehicle operation and could result in serious personal injury or death.

Detach the steering column lower shaft from the lower coupling.
1. Remove and discard the steering column shaft bolt.
2. Pull apart the steering column shaft from the coupling.
3. Secure the lower shaft to the frame rail to avoid damage to the shaft.
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Remove the fasteners and the LH motor mount bracket.

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Disconnect the LH HO2S sensor.

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- Remove the nuts and the LH exhaust manifold.
- Discard the nuts.
- Clean and inspect the exhaust manifold. Refer to: Exhaust Manifold Cleaning and Inspection .
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Remove and discard the gasket.

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Remove and discard the studs.

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Install the LH engine mount bracket and the fasteners.
Torque: Bolts: 41 lb.ft (55 Nm) Stud bolt: 46 lb.ft (63 Nm)

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Using the special tools, lower the engine onto the engine mounts. Use Special Service Tool: 303-F070 Support Bar, Engine., 303-639 Support Bracket, Engine.

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Remove Special Service Tool: 303-F070 Support Bar, Engine., 303-639 Support Bracket, Engine.

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- Remove and discard the bolts.
- Remove the cylinder head.
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Discard the cylinder head gasket.

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NOTE: Do not use metal scrapers, wire brushes, power abrasive discs or other abrasive means to clean the sealing surfaces. These tools cause scratches and gouges which make leak paths.

NOTE: Clean the cylinder head bolt holes in the cylinder block using compressed air. Make sure all coolant, oil or other foreign material is removed.
- Clean and inspect the cylinder head-to-cylinder block mating surfaces of both the cylinder head and the cylinder block
- Refer to: Cylinder Head Distortion .
- Refer to: Cylinder Block Distortion .

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