- If required, install the purge solenoid
valve.
Notice: Use the correct fastener in the correct location. Replacement fasteners
must be the correct part number for that application. Fasteners requiring
replacement or fasteners requiring the use of thread locking compound or sealant
are identified in the service procedure. Do not use paints, lubricants, or
corrosion inhibitors on fasteners or fastener joint surfaces unless specified.
These coatings affect fastener torque and joint clamping force and may damage
the fastener. Use the correct tightening sequence and specifications when
installing fasteners in order to avoid damage to parts and systems.
- Install the EVAP canister purge solenoid valve studs. If reusing the
old studs, apply threadlock GM P/N 12345382, (Canadian P/N 10953489),
or equivalent to the threads.
Tighten
Tighten the studs to 10 N·m (89 lb in).
- If required, install a NEW MAP sensor seal.
Apply a small drop of clean engine oil to the seal.
- Install the MAP sensor.
- If required, install a NEW throttle body gasket.
- Install the throttle body.
- Install the rear throttle body stud. If reusing the old stud, apply threadlock
GM P/N 12345382, (Canadian P/N 10953489), or equivalent
to the threads.
Tighten
Tighten the stud to 9 N·m (80 lb in).
- If required, install a NEW O-ring seal to
the PCV cover. Apply clean engine oil to the seal.
- Install the PCV valve cover.
- If required, install a NEW O-ring seal.
Apply clean engine oil to the seal.
- Install the power brake booster vacuum fitting.
- Install a NEW O-ring seal to the fuel
meter body.
- Install a NEW upper intake manifold gasket.
- Install the intake manifold - upper.
- If reusing the old throttle body/intake manifold studs, apply threadlock
GM P/N 12345382, (Canadian P/N 10953489), or equivalent
to the threads.
- Install the front two throttle body studs.
- Install the intake manifold - upper studs.
Tighten
Tighten the studs to 9 N·m (80 lb in).
- Install the accelerator cable bracket.
- Install the accelerator cable bracket nuts.
Tighten
Tighten the nuts to 12 N·m (106 lb in).
- Connect the power brake booster vacuum
hose to the vacuum fitting.
- Install the PCV valve hose to the valve
cover and rocker cover.
- Position the engine wiring harness and
bracket.
- Install the engine wiring harness bracket stud.
Tighten
Tighten the stud to 25 N·m (18 lb ft).
- Install the engine wiring harness rear bracket nut at the EVAP canister
purge solenoid valve.
Tighten
Tighten the nut to 9 N·m (80 lb in).
- Install the engine wiring harness ground
nut and ground wire (4) to the rear of the right cylinder head.
Tighten
Tighten the nut to 16 N·m (12 lb ft).
- Install the engine wiring harness bracket.
- Install the engine wiring harness bracket nuts.
Tighten
Tighten the nuts to 12 N·m (106 lb in).
- Connect the EVAP canister harness to the
purge solenoid valve.
- Connect the following electrical connectors:
• | The EVAP canister purge solenoid valve (1) |
- Connect the following electrical connectors:
• | The control port injector module (3) |
- Install the engine wiring harness clip bolt (4).
Tighten
Tighten the bolt to 9 N·m (80 lb in).
- Position the bracket and cables.
- Install the accelerator control cable bracket with the cables attached,
to the throttle body.
- Install the accelerator control cable bracket nuts.
Tighten
Tighten the nuts to 9 N·m (80 lb in).
- Connect the following electrical connectors:
• | The A/C compressor clutch (1), if equipped |
• | The A/C pressure switch (4), if equipped |
- Install the engine wiring harness clip (3) to the accelerator control
cable bracket.
- Install the accelerator cable to the accelerator
control cable bracket.
- Install the accelerator cable to the throttle
body lever.
- Install the cruise control cable to the
accelerator control cable bracket, if equipped.
- Connect the cruise control cable to the throttle lever, if equipped.
- Install the fuel pipes/hoses. Refer to
Fuel Hose/Pipes Replacement - Engine Compartment
in Engine Controls-4.3L.