Oil Pressure, Checking

Oil Pressure, Checking

Special tool: 5270

Check oil pressure with engine hot and oil at correct level
Engine oil must be of recommended grade and type. Genuine Volvo oil filter must be fitted.





Check engine oil level
Top up as required.

If grade/type of oil and filter condition cannot be ascertained, replace filter and change oil.





Check oil pressure switch
If pressure indication is absent.
- check switch lead and connector
- check switch type and function; fit new switch if necessary
- check for faulty lead between switch and warning lamp

NOTE: Use new gasket between switch and cylinder block when switch is finally reinstalled.










Check oil pressure
Use instrument kit 5270.

Connect adapter C (B11-74), tube 5272 and instrument 5271 to pressure switch tapping on cylinder block.

Connect rev counter.

Start engine and read oil pressure at different speeds.

NOTE: Use new gasket between switch and cylinder block when switch is finally reinstalled.


Minimum oil pressure
900 rpm 0.10 MPa
2000 rpm 0.25 MPa
3000 rpm 0.50 MPa

Maximum oil pressure (with relief valve open): 0.80 MPa

If readings are not satisfactory:
Check oil pressure regulator.