1998 MITSUBISHI MONTERO fuel tank removal

VACUUM DIAGRAMS article. Install hoses as necessary and go to step
20). If hoses are okay, go to next step.
14) Disconnect OFLV-to-EVAP canister hose at OFLV and EVAP
canister. Plug hose at OFLV end. Connect hand-held pressure/vacuum
pump to hose at EVAP canister end. Apply 0.9 psi. If pressure is not
maintained, replace hose. Go to step 20). If pressure is maintained,
go to next step.
15) Using scan tool, read Fuel Tank Differential Pressure
(FTDP) sensor (item 73). Connect hand-held pressure/vacuum pump to
OFLV. While monitoring scan tool, apply 0.42 psi. If scan tool reading
reaches 0.42 psi, go to next step. If reading does not reach 0.42 psi,
go to step 19).
16) Disconnect OFLV-to-EVAP canister hose at EVAP canister.
Connect hand-held pressure/vacuum pump to hose and apply 0.9 psi. If
pressure is not maintained, go to next step. If pressure is
maintained, go to step 18).
17) Disconnect EVAP purge solenoid-to-EVAP canister hose at
EVAP canister. Connect hand-held pressure/vacuum pump to hose.
Disconnect intake manifold plenum-to-EVAP purge solenoid at intake
manifold plenum. Operate vacuum pump several times to apply vacuum. If
vacuum leaks, replace EVAP canister. Go to step 20). If vacuum does
not leak, repair clog in hose between EVAP canister and EVAP Purge
solenoid. Go to step 20).
18) Disconnect EVAP canister-to-OFLV hose at OFLV. If vacuum
does not leak, repair clog in hose between EVAP canister and OFLV. Go
to step 20). If vacuum leaks, check fuel tank filler tube assembly. If
fuel tank filler tube assembly is okay, repair clog in hose between
OFLV and fuel cut-off valve. Go to step 20).
19) Replace fuel tank filler tube and OFLV-to-fuel cut-off
valve hose. While monitoring scan tool, apply 0.42 psi with hand-held
pressure/vacuum pump. If scan tool reading does not reach 0.42 psi,
replace fuel tank. Go to next step.
20) Road test vehicle and attempt to duplicate conditions
that caused original complaint. Recheck for DTCs. If no DTCs are
displayed, test is complete.
DTC P0500: VEHICLE SPEED SENSOR (VSS) CIRCUIT FAILURE
NOTE: Speedometer testing procedures for 3000GT are not available
from manufacturer at time of publication. For terminal
identification, see TERMINAL IDENTIFICATION.
For circuit and wire color identification, see
L - WIRING DIAGRAMS article.
1) If using scan tool, go to step 4). On 3000GT, go to step
3). On Montero, speedometer testing procedures using DVOM require
removal of instrument panel. Removal and installation of instrument
panel is basically an unbolt and bolt-on procedure.
2) DO NOT disconnect connectors. Using DVOM, check continuity
between indicated speedometer terminals. See Fig. 40. Ensure
continuity pulses on and off with speedometer shaft revolution. If
continuity is not as specified, replace speedometer. If continuity is
as specified, go to next step.

DISTRIBUTOR
NOTE: Eclipse, Mirage 1.8L, Montero, Montero Sport 3.0L and 3000GT
DOHC use Distributorless Ignition System (DIS). All other
models use distributor type ignition systems with
non-serviceable distributors on which only the rotor and
distributor cap can be changed.
FUEL SYSTEM
* PLEASE READ THIS FIRST *
WARNING: Always relieve fuel pressure before disconnecting any fuel
injection-related component. DO NOT allow fuel to contact
engine or electrical components.
FUEL SYSTEM PRESSURE RELEASE
Relieving Fuel Pressure
1) On Diamante, disconnect fuel pump harness connector at
fuel tank from underneath vehicle. On Montero and Montero Sport,
remove cargo compartment carpet, remove access plate and disconnect
fuel pump harness connector. On all other models, remove rear seat
cushion and remove access plate (if required) to disconnect fuel pump
harness connector.
2) On all models, start engine. Let engine run until it
stops. Turn ignition off. Disconnect negative battery cable. Connect
fuel pump harness connector. Reinstall rear seat (if necessary.)
FUEL PUMP
Removal & Installation (Diamante, Eclipse, Galant & Montero)
1) Fuel pump assembly is located inside fuel tank. Release
fuel pressure. See FUEL SYSTEM PRESSURE RELEASE . Remove access panel
under seat, in trunk or in rear cargo area. Disconnect electrical
connectors and fuel hoses at fuel tank.
2) Remove fuel filler hose from fuel tank. Remove fuel pump
assembly. To install, reverse removal procedure. Tighten nuts to
specification. See TORQUE SPECIFICATIONS .
Removal & Installation (Mirage, Montero Sport & 3000GT)
1) Fuel pump assembly is located inside fuel tank. Release
fuel pressure. See FUEL SYSTEM PRESSURE RELEASE . Raise vehicle on
hoist. Drain fuel into suitable container. Disconnect electrical
connectors and breather/fuel hoses at fuel tank.
2) Remove fuel filler hose from fuel tank. Support fuel tank
with transmission jack. Remove nuts securing fuel tank. Remove fuel
tank from vehicle. Remove fuel pump assembly. To install, reverse
removal procedure. Tighten nuts to specification. See
TORQUE SPECIFICATIONS .
FUEL RAILS & INJECTORS
WARNING: Use a rag to cover fuel hose connection before disconnecting
high pressure fuel hose at fuel rail. Some residual fuel
pressure may still be in system.
CAUTION: DO NOT drop injectors while removing or installing fuel rail.
Removal (Diamante, Montero Sport 2.4L & 3000GT)

2) Disconnect air intake hose and vacuum hoses. Remove air
hose and air outlet housing. Remove heat protectors. Disconnect
exhaust pipe. Remove power steering oil pump and bracket. Remove
engine hanger bracket. Disconnect oil inlet pipe.
3) Disconnect engine coolant hoses and tubes from
turbocharger. Remove exhaust manifold nuts and bolts. Remove exhaust
manifold and gaskets. Disconnect oil pressure and return pipes. Remove
turbocharger and exhaust manifold assembly. Separate turbocharger from
exhaust manifold.
Removal (3000GT - Front)
1) Disconnect negative battery cable. Drain engine oil and
coolant. Remove radiator. Disconnect exhaust pipe. Remove air intake
hose, air hoses and air pipe. Remove generator and belt. Remove oil
dipstick guide.
2) Remove heat protector. Disconnect front heated oxygen
sensor connector. Remove oil return pipe. Remove turbocharger support
bracket, and remove turbocharger from exhaust manifold.
Removal (3000GT - Rear)
1) Disconnect battery cables, and remove battery. Drain
engine oil and cooling system. Remove accelerator cable. Remove air
hose, air pipe and heat protectors. Disconnect clutch booster vacuum
hose. Remove air intake hoses and EGR pipe. Disconnect heated oxygen
sensor connectors.
2) Remove oil pipe and EGR valve. Disconnect exhaust fitting,
and remove rear heat protector. Remove oil return pipe. Remove
turbocharger assembly.
Inspection (All Models)
Check turbine and compressor wheels for cracking and other
damage. Ensure turbine and compressor wheels turn smoothly. Check for
oil leakage from turbocharger assembly. Check for proper wastegate
valve operation. See I - SYSTEM/COMPONENT TESTS article.
CAUTION: Apply light coat of oil to inner surface of flared area on
water pipe (flare nut fitting) before connecting to engine.
Installation (All Models)
1) To install, reverse removal procedure. Before oil pipe
flare nut (above turbocharger) is installed, pour clean engine oil
into turbocharger oil pipe installation hole. Ensure oil and air hoses
are properly installed and securely clamped.
2) Use NEW gaskets. Adjust accelerator cable (if necessary).\
Refill engine oil and coolant. Check for oil and coolant leaks.
Tighten all bolts to specification. See TORQUE SPECIFICATIONS.
TORQUE SPECIFICATIONS
TORQUE SPECIFICATIONS TABLE








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Applications Ft. Lbs. (N.m)
Coolant Pipe-To-Turbocharger Banjo Bolt .......... 31 (42)
EGR Valve ........................................ 16 (22)
Engine Coolant Temperature Sensor ................ 22 (30)
Exhaust Manifold-To-Engine Nuts ............ 18-21 (24-29)
Exhaust Manifold-To-Turbocharger Bolts ..... 40-47 (54-64)
Exhaust Pipe Bolts ......................... 21-36 (29-49)
Fuel Filter Line ................................. 27 (36)
Fuel Tank Drain Plug ....................... 11-18 (15-24)
Fuel Tank Nuts ............................. 15-21 (20-29)