warning CHRYSLER VOYAGER 1996 Service Manual

GASOLINE/OXYGENATE BLENDS
Some fuel suppliers blend unleaded gasoline with
materials that contain oxygen such as alcohol, MTBE
(Methyl Tertiary Butyl Ether) and ETBE (Ethyl Ter-
tiary Butyl Ether). Oxygenates are required in some
areas of the country during winter months to reduce
carbon monoxide emissions. The type and amount of
oxygenate used in the blend is important.
The following are generally used in gasoline
blends:
Ethanol- (Ethyl or Grain Alcohol) properly
blended, is used as a mixture of 10 percent ethanol
and 90 percent gasoline. Gasoline blended with etha-
nol may be used in your vehicle.
MTBE/ETBE- Gasoline and MTBE (Methyl Ter-
tiary Butyl Ether) blends are a mixture of unleaded
gasoline and up to 15 percent MTBE. Gasoline and
ETBE (Ethyl Tertiary Butyl Ether) are blends of gas-
oline and up to 17 percent ETBE. Gasoline blended
with MTBE or ETBE may be used in your vehicle.
Methanol- Methanol (Methyl or Wood Alcohol) is
used in a variety of concentrations blended with
unleaded gasoline. You may encounter fuels contain-
ing 3 percent or more methanol along with other
alcohols called cosolvents.
DO NOT USE GASOLINES CONTAINING
METHANOL.
Use of methanol/gasoline blends may result in
starting and driveability problems and damage criti-
cal fuel system components.
Problems that are the result of using methanol/
gasoline blends are not the responsibility of Chrysler
Corporation and may not be covered by the vehicle
warranty.
Reformulated Gasoline
Many areas of the country are requiring the use of
cleaner-burning fuel referred to asReformulated
Gasoline. Reformulated gasolines are specially
blended to reduce vehicle emissions and improve air
quality.
Chrysler Corporation strongly supports the use of
reformulated gasolines whenever available. Although
your vehicle was designed to provide optimum perfor-
mance and lowest emissions operating on high qual-
ity unleaded gasoline, it will perform equally well
and produce even lower emissions when operating on
reformulated gasoline.
Materials Added to Fuel
Indiscriminate use of fuel system cleaning agents
should be avoided. Many of these materials intended
for gum and varnish removal may contain active sol-
vents of similar ingredients that can be harmful to
fuel system gasket and diaphragm materials.
E-85 GENERAL INFORMATION
The information in this section is for Flexible Fuel
Vehicles (FFV) only. These vehicles can be identified
by the unique Fuel Filler Door Label that states
Ethanol (E-85) or Unleaded Gasoline Only. This sec-
tion only covers those subjects that are unique to
these vehicles. Please refer to the other sections of
this manual for information on features that are
common between Flexible Fuel and gasoline only
powered vehicles.
ETHANOL FUEL (E-85)
E-85 is a mixture of approximately 85% fuel etha-
nol and 15% unleaded gasoline.
WARNING: Ethanol vapors are extremely flammable
and could cause serious personal injury. Never
have any smoking materials lit in or near the vehi-
cle when removing the fuel filler tube cap (gas cap)
or filling the tank. Do not use E-85 as a cleaning
agent and never use it near an open flame.
FUEL REQUIREMENTS
Your vehicle will operate on both unleaded gasoline
with an octane rating of 87, or E-85 fuel, or any mix-
ture of these two.
For best results, a refueling pattern that alternates
between E-85 and unleaded gasoline should be
avoided. When you do switch fuels, it is recom-
mended that
²you do not switch when the fuel gauge indicates
less than 1/4 full
²you do not add less than 5 gallons when refuel-
ing
²you operate the vehicle immediately after refuel-
ing for a period of at least 5 minutes
Observing these precautions will avoid possible
hard starting and/or significant deterioration in driv-
ability during warm up.
NOTE: When the ambient temperature is above
90ÉF, you may experience hard starting and rough
idle following start up even if the above recommen-
dations are followed.
STARTING
The characteristics of E-85 fuel make it unsuitable
for use when ambient temperatures fall below 0ÉF. In
the range of 0ÉF to 32ÉF, you may experience an
increase in the time it takes for your engine to start,
and a deterioration in drivability (sags and/or hesita-
tions) until the engine is fully warmed up.
14 - 2 FUEL SYSTEMNS
GENERAL INFORMATION (Continued)

hydrocarbons. Vapors from the fuel tank are collected
in a charcoal filled canister. The vapors are held in
the canister until the engine is operating. When the
engine is running, the vapors are drawn through the
intake manifold into the combustion chambers.
PRESSURE-VACUUM FILLER CAP
The loss of any fuel or vapor out of the filler neck
is prevented by the use of a safety filler cap. The cap
will release pressure only under significant pressure
of 10.9 to 13.45 kPa (1.58 to 1.95 psi). The vacuum
release for all gas caps is between 0.97 and 2.0 kPa
(0.14 and 0.29 psi). The cap must be replaced by a
similar unit if replacement is necessary.
WARNING: REMOVE FILLER CAP TO RELIEVE
TANK PRESSURE BEFORE REMOVING OR REPAIR-
ING FUEL SYSTEM COMPONENTS.
QUICK-CONNECT FITTINGS
Different types of quick-connect fittings are used to
attach various fuel system components. These are: a
single-tab type, a two-tab type or a plastic retainer
ring type. Some are equipped with safety latch clips.
Refer to the Removal/Installation section for more
information.
CAUTION: The interior components (o-rings, spac-
ers) of quick-connect fitting are not serviced sepa-
rately. Do not attempt to repair damaged fittings or
fuel lines/tubes. If repair is necessary, replace the
complete fuel tube assembly.
Fuel tubes connect fuel system components with
plastic quick-connect fuel fittings. The fitting con-
tains non-serviceable O-ring seals (Fig. 4).
CAUTION: Quick-connect fittings are not serviced
separately. Do not attempt to repair damaged quick-
connect fittings or fuel tubes. Replace the complete
fuel tube/quick-connect fitting assembly.
The quick-connect fitting consists of the O-rings,
retainer and casing (Fig. 4). When the fuel tube
enters the fitting, the retainer locks the shoulder of
the nipple in place and the O-rings seal the tube.
DIAGNOSIS AND TESTING
FUEL PUMP PRESSURE TEST 2.4/3.3/3.8L
WARNING: FUEL SYSTEM PRESSURE MUST BE
RELEASED BEFORE A FUEL SYSTEM HOSE OR
COMPONENT IS DISCONNECTED.The fuel system operates at approximately 338 kPa
(49 psi), 3.3L uses approximately 379 kPa (55 psi).
Check fuel system pressure at the test port on the
fuel rail (Fig. 5) or (Fig. 6).
Fig. 4 Plastic Quick-Connect Fittings
Fig. 5 Fuel Pressure Test PortÐ2.4L
14 - 6 FUEL SYSTEMNS
DESCRIPTION AND OPERATION (Continued)

SERVICE PROCEDURES
FUEL SYSTEM PRESSURE RELEASE
PROCEDUREÐ2.4/3.3/3.8L
WARNING: RELEASE FUEL SYSTEM PRESSURE
BEFORE SERVICING FUEL SYSTEM COMPONENTS.
SERVICE VEHICLES IN WELL VENTILATED AREAS
AND AVOID IGNITION SOURCES. NEVER SMOKE
WHILE SERVICING THE VEHICLE.
(1) Disconnect negative cable from battery.
(2) Remove fuel filler cap.
(3) Remove protective cap from fuel pressure test
port on fuel rail (Fig. 9) or (Fig. 10).
(4) Place open end of fuel pressure release hose,
tool number C-4799-1, into an approved gasoline con-
tainer. Connect other end of hose C-4799-1 to fuel
pressure test port (Fig. 11). Fuel pressure will bleed
off through the hose into the gasoline container. Fuel
gauge C-4799-B contains hose C-4799-1.
(5)Replace Pressure test port cap when fin-
ished doing pressure test.
FUEL SYSTEM PRESSURE RELEASE
PROCEDUREÐ3.0L ENGINE
(1) Remove the Fuel Pump relay from the Power
Distribution Center (PDC). For location of the relay,
refer to the label on the underside of the PDC cover.
(2) Start and run engine it stalls.
(3) Attemp restarting engine until it will no longer
run.(4) Turn ignition key to OFF position.
CAUTION: Steps 1, 2, 3 and 4 must be performed to
relieve high pressure fuel from within the fuel rail.
Do not attempt to use the following steps to relieve
this pressure as excessive fuel will be forced into a
cylinder chamber.
(5) Unplug connector from any injector.
(6) Attach one end of a jumper wire with alligator
clips (18 gauge or smaller) to either injector terminal.
(7) Connect the other end of the jumper wire to
the positive side of the battery.
(8) Connect one end of a second jumper wire to the
remaining injector terminal.
CAUTION: Supplying power to an injector for more
than 4 seconds will permantely damage the injector.
Do not leave the injector connected to power for
more than 4 seconds.
Fig. 9 Fuel Pressure Test PortÐ2.4L
Fig. 10 Fuel Pressure Test PortÐ3.3/3.8L
Fig. 11 Releasing Fuel Pressure
NSFUEL SYSTEM 14 - 11

(9) Momentarily touch the other end of this
jumper wire to the negative terminal of the battery
for no more than 4 seconds.
(10) Place a rag or towel below the fuel line at the
quick connect to the rail.
(11) Disconnect the quick connect fitting to the
rail. Refer to Quick-Connect Fittings in this section.
(12) Return the fuel pump relay to the PDC.
(13) One or more Diagnostic Trouble Codes (DTC's)
may have been stored in the PCM memory due to the
fuel pump relay removal. The DRB scan tool must be
used to erase a DTC. Refer to group 25, On-Board
Diagnostics.
HOSES AND CLAMPS
Inspect all hose connections (clamps and quick con-
nect fittings) for completeness and leaks. Replace
cracked, scuffed, or swelled hoses. Replace hoses that
rub against other vehicle components or show sign of
wear.
Fuel injected vehicles use specially constructed
hoses. When replacing hoses, only use hoses marked
EFM/EFI.
When installing hoses, ensure that they are routed
away from contact with other vehicle components
that could rub against them and cause failure. Avoid
contact with clamps or other components that cause
abrasions or scuffing. Ensure that rubber hoses are
properly routed and avoid heat sources.
The hose clamps have rolled edges to prevent the
clamp from cutting into the hose. Only use clamps
that are original equipment or equivalent. Other
types of clamps may cut into the hoses and cause
high pressure fuel leaks. Tighten hose clamps to 1
N´m (10 in. lbs.) torque.
QUICK-CONNECT FITTINGS
REMOVAL
When disconnecting a quick-connect fitting, the
retainer will remain on the fuel tube nipple.
WARNING: RELEASE FUEL SYSTEM PRESSURE
BEFORE DISCONNECTING A QUICK-CONNECT FIT-
TINGS. REFER TO THE FUEL PRESSURE RELEASE
PROCEDURE.
(1) Disconnect negative cable from battery.
(2) Perform Fuel Pressure Release Procedure.
Refer to the Fuel Pressure Release Procedure in this
section.
(3) Squeeze retainer tabs together and pull fuel
tube/quick-connect fitting assembly off of fuel tube
nipple. The retainer will remain on fuel tube.
INSTALLATION
CAUTION: Never install a quick-connect fitting
without the retainer being either on the fuel tube or
already in the quick-connect fitting. In either case,
ensure the retainer locks securely into the quick-
connect fitting by firmly pulling on fuel tube and fit-
ting to ensure it is secured.
(1) Using a clean lint free cloth, clean the fuel tube
nipple and retainer.
(2) Prior to connecting the fitting to the fuel tube,
coat the fuel tube nipple with clean 30 weight engine
oil.
(3) Push the quick-connect fitting over the fuel
tube until theretainer seats and a click is heard.
(4) The plastic quick-connect fitting has windows
in the sides of the casing. When the fitting com-
pletely attaches to the fuel tube, the retainer locking
ears and the fuel tube shoulder are visible in the
windows. If they are not visible, the retainer was not
properly installed (Fig. 12).Do not rely upon the
audible click to confirm a secure connection.
CAUTION: When using the ASD Fuel System Test,
the Auto Shutdown (ASD) Relay remains energized
for either 7 minutes, until the test is stopped, or
until the ignition switch is turned to the Off posi-
tion.
(5) Use the DRB scan tool ASD Fuel System Test
to pressurize the fuel system. Check for leaks.
REMOVAL AND INSTALLATION
FUEL FILTER
The fuel filter mounts to the top of the fuel tank.
The inlet and outlet tubes are permanently attached
to the filter (Fig. 13).
Fig. 12 Plastic Quick-Connect Fitting/Fuel Tube
Connection
14 - 12 FUEL SYSTEMNS
SERVICE PROCEDURES (Continued)

WARNING: RELEASE FUEL SYSTEM PRESSURE
BEFORE DISCONNECTING QUICK-CONNECT FIT-
TINGS AT FUEL FILTER. REFER TO THE FUEL
PRESSURE RELEASE PROCEDURE.
REMOVAL
(1) Perform fuel system pressure release.
(2) Disconnect quick-connect fittings from fuel
pump module and chassis fuel supply tube. Refer to
Quick-Connect Fittings in this section.
(3) Remove filter retaining screw (Fig. 13) and
remove filter from tank.
INSTALLATION
(1) Install fuel filter to tank.
(2) The fuel supply (to filter) tube, return tube (to
pump module) and fuel supply (to chassis fuel line)
are permanently attached the fuel filter. The ends of
the fuel supply and return tubes have different size
quick-connect fittings.
(3) Apply a light coating of clean 30 weight engine
oil to the fuel filter nipples. Install fuel tubes. Refer
to Fuel Tubes and Quick-Connect Fittings in this sec-
tion.
FUEL PUMP MODULE
WARNING: RELEASE FUEL SYSTEM PRESSURE
BEFORE SERVICING FUEL SYSTEM COMPONENTS.
SERVICE VEHICLES IN WELL VENTILATED AREAS
AND AVOID IGNITION SOURCES. NEVER SMOKE
WHILE SERVICING THE VEHICLE.
WARNING: THE FUEL RESERVOIR OF THE FUEL
PUMP MODULE DOES NOT EMPTY OUT WHEN THE
TANK IS DRAINED. THE FUEL IN THE RESERVOIR
WILL SPILL OUT WHEN THE MODULE IS
REMOVED.
REMOVAL
(1) Remove fuel filler cap and perform Fuel Sys-
tem Pressure Release procedure.
(2) Disconnect negative cable from battery.
(3) Insert fuel siphon hose into fuel filler neck and
push it into the tank.
(4) Drain fuel tank dry into holding tank or a
properly labeledGASOLINEsafety container.
(5) Raise vehicle on hoist.
(6) Use a transmission jack to support the fuel
tank. Remove bolts from fuel tank straps. Lower
tank slightly.
(7) Clean area around fuel tank module and tank
to keep dirt and foreign material out of tank.
(8) Disconnect fuel lines from fuel pump module by
depressing quick connect retainers with thumb and
fore finger (Fig. 14).
(9) Slide fuel pump module electrical connector
lock to unlock.
(10) Push down on connector retainer (Fig. 15) and
pull connector off module.
Fig. 13 Fuel Filter
Fig. 14 Fuel Line Retainers and Pump Connector
Lock
Fig. 15 Pump Module Connector Retainer and Lock
NSFUEL SYSTEM 14 - 13
REMOVAL AND INSTALLATION (Continued)

(11) Using Special Tool 6856, remove plastic lock-
nut counterclockwise to release pump module (Fig.
16).
(12) Carefully remove pump module and O-ring
from tank (Fig. 17).
(13) Discard old O-ring.INSTALLATION
(1) Wipe seal area of tank clean and place a new
O-ring seal in position on pump.
(2) Position fuel pump in tank with locknut.
(3) Tighten locknut to 53 N´m (43 ft. lbs.).
(4) Connect fuel lines.
(5) Plug in electrical connector. Slide connector
lock into position.
(6) Raise fuel tank, install bolts into fuel tank
straps and tighten.
(7) Lower vehicle on hoist.
(8) Connect negative cable from battery.
(9) Fill fuel tank. Check for leaks.
(10) Install fuel filler cap.
FUEL PRESSURE REGULATOR
The fuel pressure regulator is part of the fuel
pump module (Fig. 18). Remove the fuel pump mod-
ule from the fuel tank to access the fuel pressure reg-
ulator.
WARNING: FUEL SYSTEM PRESSURE MUST BE
RELEASED BEFORE SERVICING ANY FUEL SYS-
TEM COMPONENT. PERFORM THE FUEL SYSTEM
PRESSURE RELEASE PROCEDURE.
REMOVAL
(1) Spread tangs on pressure regulator retainer
(Fig. 18).
(2) Pry fuel pressure regulator out of housing.
(3) Ensure both upper and lower O-rings were
removed with regulator.
INSTALLATION
(1) Lightly lubricate the O-rings with clean engine
oil and place them into opening in pump module (Fig.
19).
(2) Push regulator into opening in pump module.
Fig. 16 Fuel Pump Module Lock Nut Removal
Fig. 17 Fuel Pump Module Removal
Fig. 18 Fuel Pressure Regulator
14 - 14 FUEL SYSTEMNS
REMOVAL AND INSTALLATION (Continued)

(7) Install fuel pump module. Refer to Fuel Pump
Module in this section.
FUEL TANK
WARNING: RELEASE FUEL SYSTEM PRESSURE
BEFORE SERVICING FUEL SYSTEM COMPONENTS.
SERVICE VEHICLES IN WELL VENTILATED AREAS
AND AVOID IGNITION SOURCES. NEVER SMOKE
WHILE SERVICING THE VEHICLE.
REMOVAL
(1) Disconnect negative cable from battery.
(2) Remove fuel filler cap and perform Fuel Sys-
tem Pressure Release procedure.
(3) Insert fuel siphon hose into fuel filler neck and
push it into the tank.
(4) Drain fuel tank dry into holding tank or a
properly labeledGASOLINEsafety container.
(5) Raise vehicle on hoist.
(6) Disconnect both the fuel fill and fuel vent rub-
ber hoses at the fuel tank.(7) Disconnect fuel supply lines from the steel sup-
ply line.
The fuel pump module electrical connector
has a retainer that locks it in place.
(8) Slide fuel pump module electrical connector
lock to unlock (Fig. 29).
(9) Push down on connector retainer (Fig. 30) and
pull connector off module.
(10) Use a transmission jack to support fuel tank.
Remove bolts from fuel tank straps.
(11) Lower tank slightly. Carefully remove filler
hose from tank.
(12) Lower the fuel tank. Disconnect pressure
relief/rollover valve hose at the front of tank. Remove
clamp and remove fuel filler tube vent hose. Remove
fuel tank from vehicle.
Fig. 28 Installation Channel
Fuel Tank
Fig. 29 Fuel Line Retainers and Pump Connector
Lock
Fig. 30 Pump Module Connector Retainer and Lock
NSFUEL SYSTEM 14 - 17
REMOVAL AND INSTALLATION (Continued)

WARNING: WRAP A SHOP TOWEL AROUND
HOSES TO CATCH ANY GASOLINE SPILLAGE.
(12) Remove bolt holding bottom of intake support
bracket.
(13) Remove intake manifold screws (Fig. 35).
(14) Remove fuel rail attaching bolts.
(15) Remove fuel rail. Be careful not to damage
the injector O-rings upon removal from their ports.
INSTALLATION
(1) Ensure injector holes are clean. Replace
O-rings if damaged.
(2) Lubricate injector O-rings with a drop of clean
engine oil to ease installation.(3) Put the tip of each injector into their ports.
Push the assembly into place until the injectors are
seated in the ports.
(4) Install the fuel rail mounting bolts. Tighten
bolts to 22 N´m (200 in. lbs.) torque (Fig. 35).
(5) Install a new intake manifold gasket.
(6) Position intake manifold.
(7) Tighten retaining bolts starting at center and
progressing outward in both directions to 23 N´m
(200 in. lbs.) (Fig. 35). Repeat this procedure until all
bolts are at specified torque.
(8) Install fuel hose quick connector fitting to chas-
sis tubes.Refer to Fuel Hoses, Clamps and
Quick Connect Fittings in this Section.Push the
fitting onto the chassis tube until it clicks into place.
Pull on the fitting to ensure complete insertion.
(9) Reverse removal procedures Step 2 thru Step
12 for installation.
CAUTION: When using the ASD Fuel System Test,
the ASD relay and fuel pump relay remain energized
for 7 minutes or until the test is stopped, or until
the ignition switch is turned to the Off position.
(10) With the ignition key in ON position, access
the DRB scan tool ASD Fuel System Test to pressur-
ize the fuel system. Check for leaks.
FUEL INJECTOR RAILÐ3.0L
WARNING: THE 3.0L MPI FUEL SYSTEM IS UNDER
A CONSTANT PRESSURE OF APPROXIMATELY 330
KPA (48 PSI). PERFORM FUEL PRESSURE
RELEASE PROCEDURE BEFORE SERVICING THE
FUEL RAIL OR FUEL INJECTORS.
REMOVAL
(1) Perform the Fuel Pressure Release Procedure.
(2) Disconnect negative cable from battery.
Fig. 33 Map SensorÐ2.4L
Fig. 34 Fuel Line Quick Disconnect
Fig. 35 Intake Manifold Attaching Points
NSFUEL SYSTEM 14 - 19
REMOVAL AND INSTALLATION (Continued)

(3) Remove air inlet resonator (Fig. 36).
(4) Remove throttle cable (Fig. 37).
(5) Disconnect electrical connectors from the idle
air control motor and Throttle Position Sensor (TPS).
(6) Remove vacuum hose harness from throttle
body (Fig. 38).
(7) Remove electrical connector from the coolant
temperature sensor (Fig. 39).
(8) Remove vacuum connections from air intake
plenum vacuum connector (Fig. 39).
(9) Remove the fuel hose quick connect fitting from
the chassis tube (Fig. 40).Refer to Fuel Hoses,
Clamps and Quick Connect Fittings in this Sec-
tion.Place a shop towel under the connections to
absorb any fuel spilled from the fitting.WARNING: WRAP A SHOP TOWEL AROUND
HOSES TO CATCH ANY GASOLINE SPILLAGE.
Fig. 36 Air Inlet Resonator
Fig. 37 Throttle Cable Attachment
Fig. 38 Electrical and Vacuum Connection to
Throttle Body
Fig. 39 Coolant Temperature Sensor Electrical
Connections
Fig. 40 Fuel Line Quick Disconnect
14 - 20 FUEL SYSTEMNS
REMOVAL AND INSTALLATION (Continued)

(10) Remove air intake plenum to intake manifold
mounting fasteners (Fig. 41).
(11) Remove ignition coil.
(12) Remove air intake plenum (Fig. 42).
(13) Cover intake manifold while servicing injector
fuel rail.
(14) Disconnect fuel injector wiring harness from
engine wiring harness.
CAUTION: Do not damage the injector O-Rings
when removing the injectors and fuel rail assembly.
(15) Remove fuel rail mounting bolts. Lift fuel rail
assembly off of intake manifold.
INSTALLATION
(1) Ensure injectors are seated into the receiver
cup of fuel rail with lock ring in place.
(2) Make sure the injector holes in the manifold
are clean.
(3) To ease installation, lubricate injector O-ring
with a drop of clean engine oil.
(4) Put the tip of each injector into their ports.
Push the assembly into place until the injectors are
seated in the ports.(5) Install fuel rail attaching bolts. Tighten bolts to
13 N´m (115 in. lbs.) torque.
(6) Install fuel supply and return tube holddown
bolt and the vacuum crossover tube holddown bolt.
Tighten bolts to 10 N´m (95 in. lbs.) torque.
(7) Connect fuel injector wiring harness to engine
wiring harness.
(8) Remove covering from lower intake manifold
and clean surface.
(9) Place intake manifold gasketswith beaded
sealerupon lower manifold. Put air intake in place.
Install ignition coil. Install attaching fasteners and
tighten to 13 N´m (115 in. lbs.) torque.
(10) Connect fuel line to fuel rail.
(11) Connect vacuum harness to air intake ple-
num.
(12) Connect coolant temperature sensor electrical
connector to sensor.
(13) Connect PCV and brake booster supply hose
to intake plenum.
(14) Connect idle air control motor and Throttle
Position Sensor (TPS) electrical connectors.
(15) Connect vacuum vapor harness to throttle
body.
(16) Install throttle cable.
(17) Install air inlet resonator.
(18) Connect negative cable to battery.
CAUTION: When using the ASD Fuel System Test,
the ASD relay and fuel pump relay remain energized
for 7 minutes or until the test is stopped, or until
the ignition switch is turned to the Off position.
(19) With the ignition key in ON position, access
the DRB scan tool ASD Fuel System Test to pressur-
ize the fuel system. Check for leaks.
FUEL INJECTOR RAILÐ3.3/3.8L
WARNING: THE 3.3/3.8L MPI FUEL SYSTEM IS
UNDER A CONSTANT PRESSURE OF APPROXI-
MATELY 330 KPA (49 PSI), 3.3L USES APPROXI-
MATELY 379 KPA (55 PSI). PERFORM FUEL
PRESSURE RELEASE PROCEDURE BEFORE SER-
VICING THE FUEL RAIL OR FUEL INJECTORS.
REMOVAL
(1) Perform fuel system pressure release proce-
dure.
(2) Disconnect negative cable from battery.
(3) Remove intake manifold cover.
(4) Remove air inlet resonator (Fig. 36).
(5) Remove throttle cable and speed control cable
(if equipped) (Fig. 43) from throttle lever and
bracket.
Fig. 41 Air Intake Plenum to Intake Manifold
Attaching Fasteners
Fig. 42 Removing Air Intake Plenum
NSFUEL SYSTEM 14 - 21
REMOVAL AND INSTALLATION (Continued)