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 debrisEngine Oil Pan - Removal.
7. Remove oil pressure relief valveOil Pressure Relief Valve - Removal and inspect, if damaged replace pressure relief valve.
8. If pressure relief valve is ok, replace balance shaft module assemblyEngine Oil Pan - Removal.





9. After test is complete, remove test gauge (1) and fitting (2).





10. Install oil pressure sensor and electrical connector.