J2000/Sunbird V6-191 3.1L VIN T MFI (1994)
Intake Air Plenum: Service and Repair
Air Plenum And Fuel Rail Removal
Removing the fuel rail assembly from the engine requires removing the top portion of the tuned intake manifold, called the "plenum."
REMOVE OR DISCONNECT:
1.
Negative battery terminal.
2.
Vacuum lines, noting positions of hoses.
3.
EGR to plenum nuts.
4.
Two throttle body attaching bolts, throttle body and gasket. Discard gasket.
5.
Throttle cable bracket bolts.
6.
Ignition wire plastic shield bolts.
7.
Plenum bolts.
8.
Plenum and gaskets. Discard gaskets.
NOTE: Use care in cleaning old gasket material from machined aluminum surfaces. Sharp tools may damage sealing surfaces.
INSTALL OR CONNECT:
1.
New plenum gaskets.
2.
Plenum.
3,
Plenum bolts. Tighten plenum bolts to 10 N-m (88 lb. in.).
4.
Ignition wire plastic shield bolts.
5.
Throttle body with new gasket.
6.
Throttle body bolts. Tighten throttle body bolts to 25 N-m (18 lb. ft.).
7.
EGR to plenum nuts.
8.
Throttle cable bracket bolts.
9.
Vacuum lines.
10.
Negative battery terminal.