Mitsubishi MOTORS Space Runner 1999 Workshop Manual Supplement page 299

11A-16
Drive pattern for air bleeding
Gradually open the
throttle valve.
Approx.
3,000 r/min
Idle speed
15
15
seconds seconds
Once
ENGINE <4G9> –
2. Run the engine at idle for 1 – 3 minutes to let it warm
Close the throttle
3. With no load on the engine, repeat the drive pattern shown
valve.
4. After the noise has disappeared, repeat the drive pattern
5. Run the engine at idle for 1 – 3 minutes and check that
On-vehicle Service
up.
in the illustration at left and check if the abnormal noise
disappears. (The noise should normally disappear after
10 – 30 repetitions, but if there is no change in the noise
level after 30 repetitions or more, the problem is probably
not due to air inside the lash adjusters.)
shown in the illustration at left a further 5 times.
the noise has disappeared.