Intake Manifold Assemble (L35)
- If reusing the fastener, apply threadlock GM P/N United States 12345382, GM P/N Canada 10953489, or equivalent, to the threads of the fuel meter body bracket bolt.NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
- Install the fuel meter body bracket and bolt.
Tighten
Tighten the fuel meter bracket bolt to 10 N.m (89 lb in).
- Install the fuel meter body into the fuel meter body bracket.
- Install the 6 poppet nozzles into the proper lower intake manifold bores.
- Inspect the poppet nozzles in order to ensure that the poppet nozzles are firmly seated and locked in the lower intake manifold bores.
- Install a NEW fuel meter body seal into the groove of the fuel meter body.
- Install a NEW upper intake manifold to lower intake manifold gasket into the groove of the upper intake manifold.
- Install the upper intake manifold onto the lower intake manifold.
- If reusing the fasteners, apply threadlock GM P/N United States 12345382, GM P/N Canada 10953489, or equivalent, to the threads of the upper intake manifold attaching studs.
- Install the upper intake manifold attaching studs.
Tighten
- 10.1. Tighten the upper intake manifold attaching studs on the first pass to 5 N.m (44 lb in).
- 10.2. Tighten the upper intake manifold attaching studs on the final pass to 9 N.m (80 lb in).
- If reusing the fasteners, apply threadlock GM P/N United States 12345382, GM P/N Canada 10953489, or equivalent, to the threads of the evaporative emission (EVAP) canister purge solenoid valve studs.
- Install the EVAP canister purge solenoid valve and studs.
Tighten
Tighten the EVAP canister purge solenoid valve studs to 10 N.m (89 lb in).
- Install the engine wiring harness bracket and nut.
Tighten
Tighten the engine wiring harness bracket nut to 12 N.m (106 lb in).
- Install the NEW fuel seals (8), black O-rings, into the fuel meter body.
- Install the NEW spacer rings (7), flat washers, into the fuel meter body.
- Install the NEW fuel seals (6), yellow O-rings, into the fuel meter body.
- Install the NEW fuel seal retainers (5) into the fuel meter body.
- Install the fuel pipe (3) into the fuel meter body.
- Install the fuel pipe retainer bracket (2) onto the fuel pipe.
- Install the fuel pipe retainer bracket nuts (1).
- If reusing the fastener, apply threadlock GM P/N United States 12345382, GM P/N Canada 10953489, or equivalent, to the threads of the fuel pipe bolt.
- Install the fuel pipe bolt (4).
Tighten
- 22.1. Tighten the fuel pipe bracket nuts to 3 N.m (27 lb in).
- 22.2. Tighten the fuel pipe bolt to 6 N.m (53 lb in).
- Install a NEW manifold absolute pressure (MAP) sensor seal onto the MAP sensor.
- Apply a small amount, approximately 1 drop, of clean engine oil to the MAP sensor seal.
- Install the MAP sensor into the upper intake manifold.
- Install the ignition coil and studs.
Tighten
Tighten the ignition coil studs to 12 N.m (106 lb in).
- If reusing the engine coolant temperature (ECT) sensor plug (1) or the ECT sensor (2), if equipped, apply sealant GM P/N United States 12346004, GM P/N Canada 10953480, or equivalent, to the threads of the ECT sensor plug (1) or the ECT sensor (2).
- Install the ECT sensor or plug, if equipped, into the front of the lower intake manifold.
Tighten
Tighten the ECT sensor or plug to 20 N.m (15 lb ft).
Important: The exhaust gas recirculation (EGR) valve must be installed in the original orientation. Some applications will not have an EGR valve.
- Install a NEW EGR valve gasket and the EGR valve.
- Install the EGR valve bolts.
Tighten
- 30.1. Tighten the EGR valve bolts on the first pass to 7 N.m (62 lb in).
- 30.2. Tighten the EGR valve bolts on the final pass to 30 N.m (22 lb ft).
- Install the engine coolant thermostat.
- Install the water outlet (1 or 2).
- Install the water outlet studs.
Tighten
Tighten the water outlet studs to 25 N.m (18 lb ft).
- Install a NEW throttle body gasket into the groove in the upper intake manifold.
- Install the throttle body onto the upper intake manifold.
- If reusing the fasteners, apply threadlock GM P/N United States 12345382, GM P/N Canada 10953489, or equivalent, to the threads of the throttle body attaching studs.
- Install the throttle body attaching studs.
Tighten
Tighten the throttle body attaching studs to 9 N.m (80 lb in).
- Install the accelerator control cable bracket, the studs, and the nuts.
Tighten
- 38.1. Tighten the accelerator control cable bracket stud to the intake manifold to 6 N.m (53 lb in).
- 38.2. Tighten the accelerator control cable bracket nuts to 12 N.m (106 lb in).
- 38.3. Tighten the accelerator control cable bracket stud to the throttle body to 12 N.m (106 lb in).