ENGINE <4G9-GDI> ± On-vehicle Service
11A-15
2. Run the engine at idle for 1 ± 3 minutes to let it warm up.
3. With no load on the engine, repeat the drive pattern shown
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.)
4. After the noise has disappeared, repeat the drive pattern
shown in the illustration at left a further 5 times.
5. Run the engine at idle for 1 ± 3 minutes and check that
the noise has disappeared.
Gradually open the
throttle valve.
Drive pattern for air bleeding
Close the throttle
valve.
Approx.
3,000 r/min
15
seconds
15
seconds
Idle speed
Once
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