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Home >> Mazda >> 2021 >> CX-5 Sport, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Engine Mechanical System (VIN Y)) >> Hydraulic Lash Adjuster (HLA) Inspection >> HLA Troubleshooting

HLA Troubleshooting

WARNING: This page is about a different variant/trim than selected.
Item Occurrence Possible cause Action
1 After replacing oil, sound occurs when starting engine Oil shortage in oil passage
  • Maintain the engine speed between 2, 000 to 3, 000 rpm for approx. 2 s and 10 min *, and verify that the sound disappears.
    • If the sound disappears, the HLA is normal.
      • If the sound does not disappear, go to item 5.
2 Sound occurs at instant when engine is started on vehicle left for 1 day
3 Starter cranked for 3 s or more and sound occurs directly after engine is started HLA oil shortage
4 Sound occurs directly after engine is started with newly replaced HLA
5 Sound occurs continuously for 10 min or more Insufficient oil pressure
  • Inspect the oil pressure. (See OIL PRESSURE INSPECTION .)
    • If less than the specification, inspect each part of the engine.
HLA
malfunction
6 Sound occurs during idling after high-speed driving Incorrect engine oil level
Engine oil deterioration

*: Period of time engine oil flows to the HLA, this value includes tolerance caused by the ambient temperature and the oil used.