Cylinder Heads
- Remove the engine. For additional information, refer to ENGINE .
- Remove the flexplate and the spacer plate.
- Mount the engine on a suitable engine stand.
- Remove the LH and RH engine mounts.
- Remove the drain plugs from the engine block. Allow the coolant to completely drain.
- Install the drain plugs when finished.
- Remove the two bolts and the pin-type retainer from the power steering reservoir bracket.
- Remove the power steering reservoir and bracket.
- Disconnect the hose from the power steering pump.
- Remove the bolt and the reservoir and bracket.
- Disconnect the battery cable harness ground.
- Disconnect the electrical connector and the battery cable from the alternator.
- Disconnect the two retainers from the engine front cover studs.
- Disconnect the two retainers from the A/C compressor.
- Remove the bolt and the battery cable harness from the RH engine mount.
- Disconnect the electrical connector and the vacuum hose from the fuel pressure sensor.
- Disconnect the vacuum harness from the intake manifold and remove the harness.
- Remove the LH and RH coil covers.
- Disconnect the RH and LH ignition coil electrical connectors.
- Disconnect the radio interference capacitor electrical connector.
- Disconnect the eight fuel injector electrical connectors.
- Separate the fuel charging wiring harness retainers from the fuel injection supply manifold.
- Disconnect the camshaft position (CMP) sensor electrical connector and the two retainers from the valve cover.
- Disconnect the oil pressure sensor electrical connector.
- Disconnect the pin-type retainers from the back of the engine in the locations shown.
- Disconnect the knock sensor (KS) electrical connector and the pin-type retainer.
- Disconnect the wiring harness retainer from the stud on the cylinder head.
- Disconnect the intake manifold runner control (IMRC) electrical connector.
- Disconnect the exhaust gas recirculation (EGR) system module tube nut from the exhaust manifold.
- Disconnect the cylinder head temperature (CHT) sensor electrical connector and the two pin-type retainers.
- Disconnect the positive crankcase ventilation (PCV) electrical connector.
- Remove the PCV tube.
- Disconnect the RH radio interference capacitor electrical connector and the pin-type retainer.
- Disconnect the throttle position (TP) sensor and the idle air control (IAC) sensor electrical connectors.
- Disconnect the two retainers from the RH valve cover studs.
- Disconnect the engine coolant temperature (ECT) sensor electrical connector.
- Disconnect the A/C compressor and the crankshaft position (CKP) sensor electrical connectors.
- Remove the upper radiator hose.
- Remove the coolant bypass-to-thermostat housing hose.
- Rotate the belt tensioner clockwise and remove the accessory drive belt.
- Remove the bolts and the generator support bracket.
- Remove the bolts and the generator.
- Remove the crossover tube.
- Disconnect the coolant hose.
- Remove the retainers and the crossover tube.
- Remove the eight ignition coils.
- Remove the nut and the bolt from the oil level indicator tube and position the tube aside.
- Remove the engine lifting eyes.
- Remove the bolts and the LH valve cover.
- Remove the coolant hose retainers from the RH valve cover.
- Remove the bolts and the RH valve cover.
- Remove the retainers and the upper-to-lower intake bracket.
- Remove the bolts in the sequence shown and remove the upper and lower intake.
- Remove the bolt and the coolant bypass tube.
- Remove the exhaust manifolds.
- Remove the 16 nuts.
- Remove the exhaust manifolds.
- Remove the exhaust manifold gaskets.
- Clean and inspect the exhaust manifolds. For additional information, refer to ENGINE SYSTEM-GENERAL INFORMATION .
- Remove the oil level indicator tube.
- Remove the three remaining bolts and the power steering pump.
- Install the special tool.
- Loosen the bolts.
- Remove the coolant pump pulley.
- Remove the bolts.
- Remove the coolant pump pulley.
- Using the special tool to prevent the crankshaft pulley from turning, remove the pulley bolt.
- Remove the bolt.
- Using the special tool, remove the crankshaft vibration damper.
- Using the special tool, remove the crankshaft front seal.
- Remove the bolt and the belt idler pulley.
- Remove the four front oil pan-to-timing cover bolts.
- Remove the engine front cover fasteners in the sequence shown.
- Remove the crankshaft position sensor pulse wheel.
- Position the piston of the cylinder in which the roller followers are being removed at the bottom of the stroke and camshaft lobe at the base circle.
- Using the special tool, compress the intake valve spring and remove the roller follower.
- Using the special tool, compress the exhaust valve spring and remove the roller follower.
- Repeat the above steps to remove all the roller followers.
- Remove the bolts and the RH and LH timing chain tensioners.
- Remove the RH and LH timing chain tensioner arms.
- Remove the RH and the LH timing chains and the crankshaft sprocket.
- Remove the RH and LH timing chain guides.
- Remove the hydraulic lash adjusters.
- Remove the RH and LH cylinder heads.
- Discard the cylinder head bolts.
- Discard the cylinder head gaskets.
- Clean and inspect the cylinder heads. For additional information, refer to ENGINE SYSTEM-GENERAL INFORMATION article.
NOTE:
LH shown, RH similar.
NOTE:
RH shown, LH similar.
NOTE:
LH shown; RH similar.
NOTE:
LH shown; RH similar.
NOTE:
RH shown; LH similar.
NOTE:
Upper intake shown removed for clarity.
NOTE:
LH shown; RH similar.
CAUTION:
Mark the roller follower locations. Reused roller followers must be installed in their original locations.
NOTE:
The hydraulic lash adjusters must be reinstalled in their original locations. Record the hydraulic lash adjuster locations.