Hey guys this is a question for my grandpa. He has a 99 that just and an oil change and keeps getting the oil pressure light and the gauge takes a dive. I had him get another oil change with amsoil and a purolator filter and it still does it I believe someone told me that the oil pressure sensor was probably acting up. If this is the prob can anyone point me to the part # for that piece and maybe an install page?<br><br>Regards<br>Jamie

 

Here's a pic of the left side of the '99 engine.
From Dave Fritz website at www.dodgeram.org
There is a TSB on this problem that involves a reflash that basicly renders your oil pressure guage useless.

Fix it right
Change the oil pressure sender

Fuel System Components - 24-valve Cummins Turbo Diesel engine.

1. Fuel Transfer (Lift) Pump
2. Fuel Return Line (to Fuel Tank)
3. Fuel Supply Line (Low Pressure, to Engine)
4. Fuel Heater
5. Water-in-Fuel (WIF) Sensor
6. Fuel FilterlWater Separator
7. IA T Sensor
8. Map (Boost) Sensor
9. Fuel Drain Manifold
10. CKP Sensor
11. CMP Sensor
12. Overflow Valve
13. Drain Valve
14. Fuel Pressure Test Potts
15. ECM
16. ECT Sensor
17. Fuel Injection Pump
18. Throttle Lever Bell Crank and Apps
19, High-Pressure Fuel Lines
20. Fuel Injectors
21. Fuel Heater Temperature Sensor (Thermostat)
22. Oil Pressure Sensor
23. Fuel Injector Connector
24. Drain Tube
25. Intake Manifold Air Heater/Elements