Mitsubishi Evolution X. Manual - part 874
ON-VEHICLE SERVICE
TSB Revision
POWER STEERING
37-19
POWER STEERING SYSTEM AIR BLEEDING
M1372002200909
Perform air bleeding procedure as necessary after replacing
the steering gear or the steering fluid lines.
1. Raise and support the front wheels.
AC705444 AB
Crank angle sensor
Oil filter
2. Disconnect the crank angle sensor connector.
CAUTION
Perform air bleeding only while cranking the engine. If air
bleeding is performed while the engine is running, air
could enter the fluid. During air bleeding, refill the steering
fluid supply so that the level never falls below the lower
mark on the dipstick.
3. Turn the steering wheel all the way to the left and right five
or six times while using the starter motor to crank the engine
intermittently several times (for 15 to 20 seconds).
4. Connect the crank angle sensor connector.
5. Start the engine (idling).
6. Turn the steering wheel to the left and right until there are no
air bubbles in the oil reservoir.
7. Confirm that the fluid is not milky, and that the level is
between the high and low dipstick marks.
8. Confirm that there is very little change in the fluid level when
the steering wheel is turned left and right.
CAUTION
If the fluid level rises suddenly after the engine is stopped,
the air has not been completely bled. If air bleeding is not
complete, there will be abnormal noises from the pump
and the flow-control valve, and this condition could cause
reduce the life of the power steering components.
AC608306
With engine stopped
AC
Fluid level change: Within 5 mm (0.2 in)
With engine running
9. Confirm that the change in the fluid level is no more than 5
mm (0.2 inch) when the engine is stopped and when it is
running.
10.If the change of the fluid level is 5 mm (0.2 inch) or more,
the air has not been completely bled from the system. The
air bleeding procedure must be repeated.