LEMON Manuals: Even more car manuals for everyone
Home >> Mazda >> 2021 >> CX-30 Turbo Premium >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 10 (Engine Mechanical System (VIN L)) >> Hydraulic Lash Adjuster (HLA) Inspection >> HLA Troubleshooting

HLA Troubleshooting

WARNING: This page is about a different variant/trim than selected.
HLA TROUBLESHOOTING PART DESCRIPTION

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 (1), 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  
(1) Period of time engine oil flows to the HLA, this value includes tolerance caused by the ambient temperature and the oil used.
scientia non olet · About LEMON Manuals