Page 1098 of 3870

SWITCHES SWITCHES LOCATION MISCELLANEOUS MISCELLANEOUS LOCATION Low & Reverse Solenoid Valve
In transaxle. See Fig. 74
.
Overdrive Solenoid Valve
In transaxle.Fig. 74
.
Second Solenoid Valve
In transaxle. See Fig. 74
.
Torque Converter Clutch Control
Solenoid Valve
In transaxle. See Fig. 74
.
Underdrive Solenoid Valve
In transaxle. See Fig. 74
.
Component
Location
A/C Refrigerant Temperature Switch
On rear of A/C compressor.Fig. 37
.
Brake Fluid Level Switch (A-04)
In brake fluid reservoir.Fig. 79
.
Hood Switch (A-15)
Left side of engine compartment. See
Fig. 79
.
Parking Brake Switch (C-34)
Under left end of dash. See Fig. 76
.
Power Steering Pressure Switch
Lower right side of engine
compartment.Fig. 36
.
Seat Belt Switch (Driver's Side) (D-29)
In driver's seat belt buckle.Fig. 80
.
Seat Belt Switch (Passenger's Side) (D-
39)
In passenger's seat belt buckle.Fig. 80
.
Transmission Range Switch
On top of transaxle.Fig. 56
.
Component
Location
A/C Compressor Assembly Connector
Right front of engine
compartment.Fig. 37
.
Audio Amplifier (C-11 & C-12)
Right end of dash. See Fig. 76
.
Capacitor (D-14)
Right kick panel.Fig. 76
.
Capacitor (Engine) (B-17)
Rear of engine. See Fig. 78
.
Contact Connector (F-13)
Above license plate light.Fig. 88
.
2004 Mitsubishi Endeavor LS
2004 MITSUBISHI Endeavor
Page 2815 of 3870
2004 STEERING
Power Steering - Endeavor
GENERAL DESCRIPTION Power steering has been adopted in all vehicles to make the steering system easier
to handle.
A 4-spoke steering wheel is used. A steering column has a shock absorbing mechanism and a tilt steering
mechanism. A rack and pinion steering gear is used. An oil pump responsive to engine RPM is used, which, with tuning for a rigid
gear box mount, improves steering stability at high speeds. The separate plastic resin oil reservoir reduces weight and makes fluid level
checking easier.
Fig. 1: Identifying Power Steering Components
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
POWER STEERING DIAGNOSIS
2004 Mitsubishi Endeavor LS
2004 STEERING Power Steering - Endeavor
2004 Mitsubishi Endeavor LS
2004 STEERING Power Steering - Endeavor
Page 2820 of 3870

YES: Repeat from Step 1 .
NO: The procedure is complete.
INSPECTION PROCEDURE 2: DIFFICULT STEERING WHEEL OPERATION (INSUFFICIENT POWER ASSIST) DIAGNOSIS
STEP 1. Check the drive belt for damage.
Q: Is the drive belt damaged?
YES: Replace the drive belt. Then go to Step 9 .
NO: Go to Step 2.
STEP 2. Check the power steering oil pump drive belt tension.
Refer to 7. DRIVE BELTS (FOR GENERATOR, POWER STEERING OIL PUMP AND AIR CONDITIONING) (CHECK)
.
Q: Is the power steering oil pump drive belt tension within the standard
value?
YES: Go to Step 3.
NO: Adjust the tension. (Refer to 7. DRIVE BELTS (FOR
GENERATOR, POWER STEERING OIL PUMP AND AIR CONDITIONING) (CHECK)
). Then go to Step 9 .
STEP 3. Check the fluid level.
1. Park the vehicle on a flat, level surface, and then start the engine.
2. Turn the steering wheel several times to raise the temperature of the fluid
to approximately 50 - 60°C (122 - 140°F).
3. With the engine running, turn the wheel all the way to the left and right
several times.
4. Check the fluid in the oil reservoir for foaming or milkiness. Check the
difference of the fluid level when the engine is stopped, and while it is
running.
Q: Is the check result OK?
2004 Mitsubishi Endeavor LS
2004 STEERING Power Steering - Endeavor
Page 2821 of 3870
YES: Go to Step 4.
NO: Bleed the air (Refer to POWER STEERING SYSTEM AIR BLEEDING
). Then go to Step 9 .
Fig. 4: Checking Fluid Level (Difficult Steering Wheel Operation)
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
STEP 4. Check each hose for crushing or twisting.
Q: Is any hose crushed or twisted?
YES: Re
pair or re
place the hose. Then
go to Ste
p 9 .
2004 Mitsubishi Endeavor LS
2004 STEERING Power Steering - Endeavor
Page 2824 of 3870
STEP 1. Check the fluid level.
1. Park the vehicle on a flat, level surface, and then start the engine.
2. Turn the steering wheel several times to raise the temperature of the fluid
to approximately 50 - 60°C (122 - 140°F).
3. With the engine running, turn the wheel all the way to the left and right
several times.
4. Check the fluid in the oil reservoir for foaming or milkiness. Check the
difference of the fluid level when the engine is stopped, and while it is
running.
Q: Is the check result OK?
YES: Go to Step 2.
NO: Bleed the air (Refer to POWER STEERING SYSTEM AIR
BLEEDING
). Then
go to Ste
p 3.
2004 Mitsubishi Endeavor LS
2004 STEERING Power Steering - Endeavor
Page 2825 of 3870
Fig. 5: Checking Fluid Level (Shrill Noise)
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
STEP 2. Check for seizure in the oil pump.
Q: Is there seizure?
YES: Replace the part. Then go to Step 3.
NO: Go to Step 3.
STEP 3. Retest the system.
Confirm that no noise is generated.
2004 Mitsubishi Endeavor LS
2004 STEERING Power Steering - Endeavor
Page 2827 of 3870
STEP 1. Check the fluid level.
1. Park the vehicle on a flat, level surface, and then start the engine.
2. Turn the steering wheel several times to raise the temperature of the fluid
to approximately 50 - 60°C (122 - 140°F).
3. With the engine running, turn the wheel all the way to the left and right
several times.
4. Check the fluid in the oil reservoir for foaming or milkiness. Check the
difference of the fluid level when the engine is stopped, and while it is
running.
Q: Is the check result OK?
YES: Go to Step 2.
NO: Bleed the air (Refer to POWER STEERING SYSTEM AIR
BLEEDING
). Then
go to Ste
p 4 .
2004 Mitsubishi Endeavor LS
2004 STEERING Power Steering - Endeavor
Page 2828 of 3870
Fig. 6: Checking Fluid Level (Hissing Noise)
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
STEP 2. Check each hose for crushing or twisting.
Q: Is any hose crushed or twisted?
YES: Repair or replace the hose. Then go to Step 4 .
NO: Go to Step 3.
STEP 3. Check the steering gear for damage.
Q: Is there damage?
2004 Mitsubishi Endeavor LS
2004 STEERING Power Steering - Endeavor