P029800

DTC (Code)
Codigo:
Bulletin:
SPN 175 FMI 0 // P0298 - 00
RD18-002
Date Fecha: May 11, 2018
Description:
See below for fault code description(s)
Application:
US10 – US20 Emissions
General Information
These repair instructions are intended to address the following faults:
DTC
Description
Possible Cause
Possible (Observable) Symptoms
•
SPN 175
FMI 0 //
P0298 00
Engine Oil Over
Temperature
•
•
•
•
•
•
Extreme driving conditions
Engine cooling fan
Oil thermostat
Cooling System
Clogged oil cooler
Engine oil level (EOL) and
temperature sensor
•
•
•
Info lamp lights up if the
temperature is moderately above
range
Red lamp lights up if the
temperature is critically above
range
A buzzer sounds if the
temperature is critically above
range
Engine de-rated
Required Parts
Part Number
Description
Quantity
22807993
Oil Level Sensor
1
20579690
Oil Drain Plug Gasket
1
20555696
Oil Fill Tube O-Ring
1
Repair Instructions
Oil Level Sensor Replacement
1. Secure the vehicle for service by parking in on a flat level surface, applying the parking brake, chocking the rear
wheel, and placing the transmission in neutral or park.
2. Turn the main electrical switch off.
3. Disconnect all cables from the negative (ground) battery terminals to prevent personal injury from electrical
shock and prevent damage to electrical components.
4. Open the service hatches at the rear of the bus.
5. Raise the bus and support with jack stands.
© 2016 Information is subject to change without notice.
Page 1 of 7
DTC (Code)
Codigo:
SPN 175 FMI 0 // P0298 - 00
Bulletin:
RD18-002
Date Fecha: May 11, 2018
6. Using a suitable container drain the oil. Discard of the oil drain plug gasket.. Dispose of the use oil in
accordance with all state, local and/or federal regulations.
7. Remove the cross member under the oil pan.
8. Remove the hose clamp to the filler pipe. Move the hose aside.
© 2016 Information is subject to change without notice.
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DTC (Code)
Codigo:
SPN 175 FMI 0 // P0298 - 00
Bulletin:
RD18-002
Date Fecha: May 11, 2018
9. Pull out the dipstick about 0.5 m (1.6 ft.). Remove the dipstick and the dipstick outer casing. Plug the holes.
10. Unplug the connector (1) for the oil temperature/level sensor, and remove the cable clamps (2) for the cable.
Move the cable aside.
11. Loosen the bolts for the oil pan. Leave two bolts in place. Note: With the aid of an assistant, or using a jack,
lower the oil pan. Angle the oil pan down at the rear edge and push it forward somewhat. Then lower the oil
pan. Exercise care when removing or installing the oil pan. Move the pan slowly, ensuring the oil strainer
doesn't get caught on the oil level sensor as this may result in sensor damage.
© 2016 Information is subject to change without notice.
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DTC (Code)
Codigo:
SPN 175 FMI 0 // P0298 - 00
Bulletin:
RD18-002
Date Fecha: May 11, 2018
12. Clean the oil pan and remove the gasket.
13. Remove the baffle plate.
14. Remove the engine oil level/temperature sensor and electrical connector.
15. Install the new engine oil level/temperature sensor. Install a new, greased O-ring on the electrical connector.
Torque to the proper specification, refer to Group 20, Specification
© 2016 Information is subject to change without notice.
Page 4 of 7
DTC (Code)
Codigo:
SPN 175 FMI 0 // P0298 - 00
Bulletin:
RD18-002
Date Fecha: May 11, 2018
16. Install the baffle plate. Torque to the proper specification, refer to Group 20 Specification.
17. Install a new oil pan gasket. Apply a 3 mm bead of silicone to the cylinder block at the timing gear casing and at
the timing gear plate on both sides.
18. Install the oil pan. Note: With the aid of an assistant, or using a jack, lift up the oil pan. Angle the oil pan up at
the front edge and push it forward somewhat. Then lift up the oil pan.Torque the bolts to the proper
specification, refer to Group 20 Specification.
© 2016 Information is subject to change without notice.
Page 5 of 7
DTC (Code)
Codigo:
SPN 175 FMI 0 // P0298 - 00
Bulletin:
RD18-002
Date Fecha: May 11, 2018
19. Position the cable back and plug in the connector (1) for the engine oil temperature/level sensor, and install the
cable clamps (2) for the cable.
20. Install the dipstick tube. Insert the dipstick.
21. Install the hose clamp for the filler pipe.
22. Install the drain plug. Torque to the proper specification, refer to Group 20, Specification.
23. Install the cross member beneath the oil pan. Torque to the proper specification, refer to Group 20
Specification.
24. Lower the coach.
25. Fill the engine with oil.
26. Close the service hatches.
27. Install all previous removed cables to the ground (negative) battery terminals.
28. Turn the main electrical switch on.
29. Using Tech Tool, check for codes.
30. Start the engine and carry out function and leakage checks.
© 2016 Information is subject to change without notice.
Page 6 of 7
DTC (Code)
Codigo:
Bulletin:
SPN 175 FMI 0 // P0298 - 00
RD18-002
Date Fecha: May 11, 2018
Additional Resources
These repairs are the most likely fix for the identified fault(s), if this does not fix the issue, Tech Tool will need to be
used for more detailed diagnostics. If filing a warranty claim, please include the ASIST case number.
Labor Code
3861-03-02-06
2.9
Causal Part
22807993
© 2016 Information is subject to change without notice.
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