| Removal 1. Note: When the
battery has been disconnected or reconnected, volatile memory information will
be lost. The affected systems will have to be programmed by the technician or
customer. These systems include: radio station presets, clock settings, seat memory,
mirror memory, window memory and customer input keyless, window memory and customer
input keyless entry codes. Disconnect the battery ground cable. For additional
information, refer to «Section 14-01». 2. Drain the cooling
system. For additional information, refer to «section 03-03».
3. Remove the engine cover (covering the throttle body). 4. Disconnect
the crankcase ventilation tube and the idle air control valve inlet tube from
the air cleaner outlet tube. Remove the air cleaner outlet tube. 5. WARNING:
THE FUEL SUPPLY LINES ON VEHICLES EQUIPPED WITH FUEL INJECTED ENGINES REMAIN PRESSURIZED
FOR LONG PERIODS AFTER ENGINE SHUT DOWN. THE FUEL SYSTEM PRESSURE MUST BE RELIEVED
PRIOR TO FUEL SYSTEM SERVICE, TO PREVENT POSSIBLE INJURY. (Here is
a suggestion for releasing the fuel system pressure if the gauge is not available.
Pull the cap off the fuel test point - rear passenger side - and with a rag over
it, use a small screwdriver to press the valve stem.) Connect the Multiport
Fuel Injection (MFI) Fuel Pressure Gauge (T80L-9974-B) to the fuel pressure relief
valve on the fuel supply manifold. Open the manual valve on the gauge to relieve
the fuel system pressure. Once the pressure is relieved, close the valve and remove
the gauge. 6. Remove the locking clip from the pressure and return fuel
line spring lock couplings. Using the spring lock coupling disconnect tools (D87L-9280-A
for 3/8-inch line, D87L-9280-B for 1/2-inch line) on the couplings. Push the tool
into the cage opening to release the female fitting from the garter spring. Remove
the tool and pull the male coupling and fitting apart. Install protective caps
over the lines and the fuel rail. 7. Disconnect the upper radiator hose
from the water outlet connection and position it out of the way. 8. Disconnect
the accelerator cable and the speed control actuator cable from the throttle body
and the locator. Remove the screws retaining the cables to the accelerator cable
bracket and position the cables out of the way.

9. Disconnect the wiring connectors from the throttle position sensor
(TP), idle air control valve (IAC) and the engine coolant temperature sensor (ECT).
Disconnect the wiring connectors from the LH fuel injectors and the two wiring
locators from the fuel rail. Position the harness out of the way. 10.
CAUTION: Do not pull directly on the ignition wires, the wires could separate
from the connectors inside the boots. Disconnect the ignition wires from
the LH spark plugs and position them out of the way. Refer to «Section 03-07».
11. Remove the bolts retaining the spark plug wiring harness bracket to the
intake manifold and the generator. Disconnect the ignition wires from the locators
and remove the bracket. 12. Remove the serpentine drive belt from the
generator pulley. Refer to «Section 03-05». 13. Remove the
generator retaining bolts and position it out of the way. 14. Remove
the PCV valve and tube. 15. Disconnect the wiring connectors from the
water temperature indicator sender unit and the EGR vacuum regulator solenoid.
Disconnect the RH fuel injector connectors and harness locators from the fuel
rail. Position the harness out of the way. 16. CAUTION: Do not pull directly
on the ignition wires, the wires could separate from the connectors inside the
boots. Disconnect the ignition wires from the RH spark plugs and position
them out of the way. For additional information, refer to «Section 03-07».
17. Disconnect the vacuum line from the fuel vapor storage canister purge
valve. Disconnect the heater hose from the rear of the intake manifold.
18. Disconnect the main vacuum hose from the rear of the intake manifold. Disconnect
the hose from the fuel vapor storage canister purge valve. 19. Disconnect
the EGR tube nut from the EGR valve. 20. Disconnect the vacuum hose from
the EGR valve. Remove the EGR valve and gasket. 21. Remvoe the water
outlet connection housing. 22. Remove the intake manifold. Remove and
discard the intake manifold gaskets. Installation 1. Note:
It is extremely important that the gasket surfaces are free from all dirt, oil
and debris. Clean the intake manifold and gasket surfaces.
2. Note: Make sure the alignment tabs on the intake manifold gaskets are
aligned with holes in cylinder heads. Install new intake manifold gaskets.
Carefully lower the intake manifold into position and install the nine retaining
bolts. Tighten the bolts to 25 N-m (18 lb-ft) in the sequence shown.
3. Replace the O-ring seal on the water outlet connection and lube.
Install the water outlet connection. Tighten the bolts to 25 N-m (18 lb-ft).
4. Clean the EGR valve sealing surface. Install a new gasket and the EGR
valve. Tighten the bolts to 20 N-m (14 lb-ft). Connect the vacuum hose to the
EGR valve. 5. Connect the exhaust manifold tube to the EGR valve. Tighten
the tube nut to 40 N-m (30 lb-ft). 6. Connect the main vacuum hose to
the rear of the intake manifold. Connect the emission hose to the fuel vapor storage
canister purge valve. 7. Connect the heater hose at the rear of the intake
manifold. 8. Connect the ignition wires to the RH spark plugs.
9. Connect the wiring connectors at the water temperature indicator sender unit
and the EGR vacuum regulator solenoid. Connect the RH fuel injector connectors
and the harness locators at the fuel rail. 10. Install the PCV valve
and tube. 11. Install the generator. Tighten the bolts to 25 N-m (18
lb-ft). 12. Install the serpentine drive belt. Refer to «Section
03-05». 13. Install the ignition wire harness bracket to the intake
manifold and generator. Tighten the bolts to 10 N-m (89 lb-in). Connect the ignition
wires to the locators. 14. Connect the ignition wires to the LH spark
plugs. 15. Position the engine harness and connect the wiring connectors
at the throttle position (TP) sensor, idle air control valve (IAC) and the engine
coolant temperature sensor (ECT). Connect the wiring connectors to the LH fuel
injectors and the two wiring locators at the fuel rail. 16. Remove the
protective caps from the fuel lines. Inspect and replace the fuel line O-rings
as necessary. Lubricate the O-rings. Connect the fuel pressure and return line
couplings. Pull on the fittings to verify proper coupling engagement and install
the safety clips. 17. Connect the accelerator cable and speed control
actuator cable to the throttle body and locator. Install the screws retaining
the cables to the accelerator cable bracket. Tighten the screws to 10 N-m (89
lb-in). 18. Connect the upper radiator hose to the water outlet connection.
19. Install the air cleaner outlet tube and tighten the clamps securely.
Connect the crankcase ventilation tube and idle air control valve inlet tube to
the air cleaner outlet tube. 20. Install the engine cover (covering the
throttle body). Tighten the nut to 4 N-m (36 lb-in). 21. Note: When the
battery has been disconnected or reconnected, some abnormal drive symptoms may
occur while the powertrain control module (PCM)(12A650) relearns its fuel trim.
The vehicle may need to be driven 18 km (10 miles) or more to relearn the fuel
trim. Connect the battery ground cable. 22. Fill the cooling
system. Refer to «Section 03-03». 23. Start the engine and
check for leaks. |