Reply To: I have yet to attemp this and

New Topics Forums General Discussion 2004 – 2009 Nissan Quest How remove plenum for spark plugs?? Reply To: I have yet to attemp this and

#5608

twinblown
Member

I have yet to attemp this and it appears to be a pain in ass. Definetly removing the cowl top will give the necessary room. Good luck and let us know how it turns out for you.
REMOVAL
WARNING:
To avoid the danger of being scalded, never drain the coolant when the engine is hot.
The gasket for intake manifold collector (upper) is secured together with intake manifold collector (lower) bolt. Thus, Then replacing only the upper gasket the lower gasket must also be replaced.
1. Remove the cowl top and cowl top extension. Refer to EI-19, “Removal and Installation” .
2. Remove the engine cover using power tool.
3. Remove air cleaner case, (upper) mass air flow sensor, and air
cleaner to electric throttle control actuator tube as an assembly.
Refer to EM-15, “Removal and Installation” .
4. Partially drain the coolant when the engine is cool. Refer to CO-9,”DRAINING ENGINE COOLANT” .
5. Disconnect the following:
Power brake booster vacuum hose
Coolant hoses from the intake manifold collector (upper)
Vacuum lines from the intake manifold collector (lower) and
power valve
Fuel injector electrical connectors
PCV hose
Electric throttle control actuator electrical connectors
EVAP canister purge hose
EGR temperature sensor electrical connector
CAUTION:
Cover any engine openings to avoid the entry of any foreign
material.
6. Remove the EGR tube (to intake manifold collector, lower) nuts.
7. Disconnect the power steering hose bracket from the back of the
intake manifold collector (upper).
8. Remove the EVAP canister purge volume solenoid valve bracket bolt. Position the valve aside.
9. Remove the VIAS control solenoid valve bracket bolt. Position the valve aside.
10. Remove the vacuum tank.
11. Remove the intake manifold collector (upper) support bracket from the back of the intake manifold collector (upper) using power tool.
12. Loosen the intake manifold collector (lower) bolts in the order as shown using power tool, and remove the intake manifold collector (upper and lower) and gasket.