Mitsubishi Eclipse. Manual — part 647
FUEL SUPPLY DIAGNOSIS
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FUEL SUPPLY
13C-9
STEP 5. Check the inside of the fuel tank for contamination
and rust.
(1) Draining fuel.
(2) Fuel tank removal. (Refer to
.)
Q: Is the fuel tank in good condition?
YES : Go to Step 6.
NO : Replace the fuel filter, and clean the fuel tank and fuel
line. Then go to Step 6.
STEP 6. Check symptoms.
Q: Is the engine malfunction eliminated?
YES : Finish.
NO : Return to Step 1.
SPECIAL TOOLS
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FUEL SUPPLY
13C-10
SPECIAL TOOLS
M1135000600258
TOOL
TOOL NUMBER AND
NAME
SUPERSESSION
APPLICATION
MB991958
A: MB991824
B: MB991827
C: MB991910
D: MB991911
E: MB991914
F: MB991825
G: MB991826
MUT-III Sub Assembly
A: Vehicle
Communication
Interface
B: MUT-III USB Cable
C: MUT-III Main Harness
A (Vehicles with CAN
communication
system)
D: MUT-III Main Harness
B (Vehicles without
CAN communication
system)
E: MUT-III Main Harness
C (for Daimler Chrysler
models only)
F: MUT-III Adapter
Harness
G: MUT-III Trigger
Harness
• Reading diagnostic
trouble code
• MFI system inspection
MD998709
Adaptor hose
MIT210196
Measurement of fuel
pressure
MB991910
MB991826
MB991958
MB991911
MB991914
MB991824
MB991827
MB991825
DO NOT USE
A
B
C
D
E
F
G
DO NOT USE
ON-VEHICLE SERVICE
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FUEL SUPPLY
13C-11
ON-VEHICLE SERVICE
FUEL PUMP MODULE REPLACEMENT
M1135004900262
1. Remove the rear seat cushion. (Refer to GROUP 52A
−
.)
2. Remove the protector.
3. Bleed the residual pressure from inside the fuel pipe line to
prevent the fuel from spraying out. [Refer to GROUP 13A
<2.4L>
, 13B <3.0L>
− On-vehicle
Service
− Fuel Pump Connector Disconnection (How to
Reduce Pressurized Fuel Line.)]
MD998742
Hose adaptor
MD998742-01
MB991637
Fuel pressure gauge set
Tool not available
MB991480
Tank cap wrench
−
Cap removal and
installation
MB991348
Test harness set
−
Fuel tank differential
pressure sensor check
TOOL
TOOL NUMBER AND
NAME
SUPERSESSION
APPLICATION
MB991637
MB991480
MB991348
AC000705AB
PROTECTOR
ON-VEHICLE SERVICE
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FUEL SUPPLY
13C-12
4. Disconnect the hose and connector connections, and then
use special tool MB991480 to remove the fuel pump
module.
CAUTION
Install the packing to the fuel tank, and then install the fuel
pump module to the fuel tank. Installing the packing to the
fuel pump module will damage the packing lip when
installing the fuel pump module to the fuel tank, and fuel
leakage will occur.
5. Check that the fuel tank is not damaged or deformed, and
then securely install the packing to the fuel tank.
NOTE: If the packing is damaged or deformed, replace with
new packing.
CAUTION
• Do not tilt the fuel pump module when installing.
• The packing should not be folded over as shown by "A"
in the illustration.
6. Apply soap water to the inside of the packing, and then
install the fuel pump module.
CAUTION
When Tightening, be careful not to let the fuel pump mod-
ule turn together with the cap. If the mating marks are mis-
aligned, the float may measure a remaining amount of fuel
in correctly, causing the low fuel warning light to malfunc-
tion.
7. Use special tool MB991480 to align the mating marks on the
fuel tank and fuel pump module, and tighten the cap.
8. Check for leaks from the installation section of the fuel pump
module by the following procedure.
(1) Apply soapy water to the inside diameter of the cap.
(2) Choke the vapor hose and main hose, apply an internal
pressure of 10 kPa (1.45 psi) or less from the return hose
and check that no bubbles form in the soapy water.
9. Connect the connector, and then install the protector.
10.Install the rear seat cushion. (Refer to GROUP 52A
− Rear
AC000701AB
MB991480
AC000702AB
OK
A
(INCORRECT)
PACKING
AC000703
MB991480
MATING MARKS
AB
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