Repair Procedure
REPLACE OIL PRESSURE SWITCH1. Ensure that radio code is available and disconnect negative terminal from battery.
2. Remove upper fan shroud, fan and serpentine belt.
3. Remove serpentine belt tensioner assembly (one bolt).
4. Disconnect ground strap from alternator bracket to damper shock support (one bolt).
5. Disconnect alternator wiring harness.
6. Remove two bolts securing wiring harness shield to alternator bracket.
7. Remove four bolts securing alternator bracket to cylinder head.
8. Remove alternator assembly.
9. Relieve cooling system pressure and loosen hose clamp at water pump for access to oil pressure switch.
10. Disconnect electrical connector from switch terminal and remove leaking oil pressure switch and O-ring.
11. Obtain new oil pressure switch and ensure that O-ring is installed.
CAUTION:
Do not use any thread sealant on threads of oil pressure switch.
12. Inspect the threads in the front cover, and clean if necessary.
*NOTE:
Because the new oil pressure switch is larger, use Kent Moore Tool # J-21757-03 to aid installation.*
13. Lubricate new O-ring with engine oil and install oil pressure switch and tighten until O-ring is compressed.
14. Refer to Figure 2 and tighten oil pressure switch using Kent-Moore tool a further 25°.
15. The installed torque of the pressure switch should be 15 Nm. (11 lb. ft.).
16. Apply electrical connector grease (LRNASGP2) into the female electrical connector and install on switch. Position connector to avoid interference with water pipe.
17. Position and tighten hose clamp on water pump.
18. Install alternator assembly and bracket to head with four bolts. Torque to 25 Nm. (18 lb. ft.).
19. Install and tighten two bolts securing wiring harness shield to alternator bracket.
20. Connect and tighten alternator leads.
21. Connect ground strap from alternator bracket to damper shock mount.
22. Install serpentine belt tensioner assembly. Torque to 39 Nm. (29 lb. ft.).
23. Install serpentine belt, fan and fan shroud.
24. Connect battery negative terminal.
25. Reset windows/sunroof and code radio.
26. Check engine oil level and replenish as necessary.