Compass 4WD L4-2.4L (2008)
Engine Oil Pressure: Testing and Inspection
Checking VVT Oil Pressure
CHECKING VVT OIL PRESSURE
This test can be used to help diagnose VVT faults.
1. Disconnect and remove oil pressure sensor (1).
CAUTION: Threads in block are 1/8"-28 British Standard Pipe (BSP). Do not install a National Pipe Thread (NPT) threaded adapter, this
could crack the cylinder block.
2. Install an 1/8-28 BSP male to 1/8-27 female threaded adapter (2).
3. Install oil pressure gauge (1).
4. Start engine and record oil pressure.
CAUTION: If oil pressure is 0 at idle, do not perform the 3000 RPM test
5. If oil pressure is 0 at idle, shut off engine. check for pressure relief valve stuck open, a clogged oil pick-up screen.
6. Remove oil pan and inspect for debrisSee: Oil Pan/Service and Repair/Engine Oil Pan - Removal.
7. Remove oil pressure relief valveSee: Oil Pressure Regulator Valve/Service and Repair/Removal and Replacement/Engine Oil Pressure Relief
Valve - Removal and inspect, if damaged replace pressure relief valve.
8. If pressure relief valve is ok, replace balance shaft module assemblySee: Service and Repair/Removal and Replacement/Engine Oil Pump -
Removal.