Patriot 4WD L4-2.4L (2009)
4. Start engine and record reading on oil pressure gauge (1).
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/Oil Pressure Relief Valve -
Removal. and
8. Inspect oil pressure relief valveSee: Oil Pressure Regulator Valve/Service and Repair/Procedures if damaged replace.
9. If pressure relief valve is ok, replace balance shaft module assemblySee: Oil Pan/Service and Repair/Engine Oil Pan - Removal.
10. After test is complete, remove oil pressure gauge (2) and adapter 9879 (1).
11. Install a new oil pressure temperature sensor (1) and connect electrical connector.
