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1. NOTE You may have to use a mirror to view the green paint mark on the compressor oil T fitting e If the compressor oil T fitting has a green paint mark then DO NOT proceed No repair is needed See Figure 4 page 6 e If the compressor oil T fitting DOES NOT have a green paint mark then proceed to Step 9 5 AFC 11912 PROCEDURE CONT 2 Figure 3 Compressor oil T fitting 1 Turbocharger inlet 2 Compressor oil T fitting 3 Crossover tube Figure 4 Compressor oil T fitting with green paint mark circled in yellow 9 Remove the dual turbochargers as outlined in EGES 4801 2010 MaxxForce 7 Engine Service Manual 10 Disconnect the air compressor oil supply tube from the air compressor oil T fitting See Figure 5 page 7 AFC 11912 6 PROCEDURE CONT Figure 5 Air compressor oil T fitting 11 15 16 17 18 19 20 21 1 Air compressor oil T fitting supply line nut Remove and discard the old compressor oil T fitting and EOT sensor Install the new compressor oil T fitting and hand start the compressor oil T fitting to the oil cooler base slightly snug for alignment of the air compressor oil supply line Hand start the air compressor oil supply line to the compressor oil T fitting until snug Torque the compressor oil T fitting to oil cooler base at 25 N m 18 lbf ft Refer to EGES 4801 2010 MaxxForce 7 Engine Service Manual Appendix B Torques General2. Torque Using a Torque Wrench Extension Torque the air compressor oil supply line to fitting at 17 N m 12 5 Ibf ft Refer to EGES 4801 2010 MaxxForce 7 Engine Service Manual Appendix B Torques General Torque Using a Torque Wrench Extension Install the new EOT sensor and torque to 18 N m 13 Ibf ft Reinstall dual turbochargers as outlined in EGES 4801 2010 MaxxForce 7 Engine Service Manual Use an Engine Electronic Service Tool to clear the oil pressure codes If you have any other codes non related please diagnose them separately Start the engine and check for leaks Close the hood and remove the wheel chocks Return the service tools and the service parts 7 AFC 11912 Operation number must appear on all claims Table 2 Labor Information Operation No Description A40 11912 1 Inspection Only Air Compressor Oil T fitting A40 11912 3 Replace Air Compressor Oil T fitting A40 11912 2 Inspection Only Air Compressor Oil T fitting 0 7 hours Monaco RV only i il T fitti A40 11912 4 Replace Air Compressor Oil T fitting Monaco 4 4 hours RV only ADMINISTRATIVE PROCEDURE Expense is to be charged to Warranty Claims are to be submitted in the normal manner making reference to Authorized Field Change Number G 11912 It is important that the coding be completed properly to assist in processing the warranty claim Complete instructions will be found in the Warranty Manual Section 7 1 Special
3. 6537C91 EOT Sensor 1889613C1 Tube ASM Wastegate 1886507C1 Tube ASM Boost to Solenoid Copyright 2011 Navistar Inc All rights reserved All marks are trademarks of their respective owners 1 PARTS INFORMATION CONT Table 1 Parts Information cont 1886508C1 Tube Relief to Duct 1897455C92 Kit Turbo Mounting 1883660C1 Gasket V Band Turbo PROCEDURE A WARNING To prevent vehicle damage personal injury or death park the vehicle on a flat level surface Make sure the engine ignition is in the off position and the transmission is in the neutral or park position if the vehicle is equipped with an automatic transmission Set the parking brake block the wheels to prevent the vehicle from moving in both directions and disconnect the batteries at the negative terminal before doing any service procedures on the vehicle A WARNING To prevent personal injury or death remove ground cable from negative terminal of main battery before disconnecting electrical components Always connect ground cable last A WARNING To prevent personal injury or death make sure that the engine has cooled before removing components A WARNING To prevent personal injury or death always wear safe eye protection when performing vehicle maintenance A WARNING To prevent personal injury or death do not let engine fluids stay on your skin Clean skin and nails using hand cleaner and wash with soap and water Wash or discard clothing an
4. Authorized Field Change AFC 11912 Date August 2011 Subject File ENGINE Subject 2010 Emissions Compliant MaxxForce 7 Air Compressor Oil Supply T fitting Model DuraStar 4300M4X2 Start Date July 2010 End Date February 2011 Model CE C Bus Start Date July 2010 End Date February 2011 Model CE S Bus Start Date July 2010 End Date February 2011 Model HC C Bus Start Date July 2010 End Date February 2011 Model TerraStar Start Date July 2010 End Date February 2011 Model Monaco RV Start Date July 2010 End Date February 2011 Engine Family MaxxForce 7 Start Date July 2010 End Date February 2011 DESCRIPTION Certain vehicles listed above that were built with 2010 emissions compliant MaxxForce 7 engines equipped with an air compressor may experience erroneous Diagnostic Trouble Codes DTCs and or engine warning lights indicating a low oil pressure condition The erroneous DTCs and warning lights are caused by an inaccurate oil temperature reading from the Engine Oil Temperature EOT sensor The EOT sensor is reading the temperature of the fitting that it is mounted on rather than the temperature of the engine oil This campaign will require an inspection of the air compressor oil supply T fitting that the EOT sensor is mounted on and if necessary the replacement of the T fitting and the EOT sensor itself PARTS INFORMATION Table 1 Parts Information 1884439C92 Air Compressor Oil T Fitting 183
5. attention should be given to Items 39 through 44 To assure this important improvement is made in a timely manner all claims for G 11912 activity must be submitted by August 31 2012 or within the normal warranty period for the vehicle if after August 31 2012 AFC 11912 8 GROUP Enter number G NOUN Leave blank C CAUSE Enter either 1 2 3 see below 1 Inspected No repair required 2 Inspected and repaired 3 Defective part from parts stock WARRANTY Warranty Code Enter 40 TYPE PART Enter P for type part causing failure PAD Enter 100 Distribution All except J 81 Reproduction Not required 9 AFC 11912
6. d rags contaminated with engine fluids AFC 11912 2 PROCEDURE CONT This procedure covers several vehicle models The procedures for accessing the engine vary according to the vehicle being serviced e Monaco RV vehicles When instructed refer to the appropriate Monaco service manual to gain access to the top of the engine e International vehicles When instructed refer to the appropriate service manual on the ISIS system to gain access to the top of the engine Some components may require removal such as the right inner fender splash shield and the engine cover The air compressor oil T fitting is located under the Engine Oil Temperature EOT sensor which is located under the turbocharger crossover tube See Figure 1 page 4 Inspection of the T fitting requires removal of the turbocharger inlet air duct assembly See Figure 1 page 4 Depending on the vehicle this may require removal of the following peripheral components e inner fender splash shield e air filter housing e air filter outlet ducting Removal of the T fitting requires removal of the turbocharger assemblies which will require access to the top and top rear of the engine Depending on the vehicle this may require removal of the following peripheral components in addition to those removed for inspection e inner fender splash shield e Electronic Control Module ECM e air filter housing e air filter housing mounting bracket engin
7. e wire harness cover e shifter assembly reposition passenger seat park brake lever assembly reposition engine cover 3 AFC 11912 PROCEDURE CONT Figure 1 Engine top view EGR valve Inlet Air Heater IAH Engine Throttle Valve ETV Turbocharger inlet duct assembly Turbocharger oil supply tube Low pressure turbocharger assembly Pump cover heat shield right Right exhaust tube assembly Exhaust turbocharger inlet manifold 10 Left exhaust tube assembly 11 EGR cooler 12 High pressure turbocharger assembly 13 Crossover tube 14 Manifold mixer ONDINA WN 1 Park the vehicle on a flat surface shift the transmission to park or neutral set the parking brake and block the wheels to prevent the vehicle from moving in both directions 2 Raise the hood assembly 3 Disconnect the battery ground cable 4 If necessary remove the right inner fender splash shield 5 If necessary remove the air filter housing 6 Disconnect or remove the air filter housing inlet elbow from the turbocharger inlet duct See Figure 2 page 5 AFC 11912 4 PROCEDURE CONT Figure 2 Turbocharger inlet duct 1 Air filter housing inlet elbow 2 Clamp 3 Clamp 4 Turbocharger inlet duct 7 Remove the turbocharger inlet duct assembly from the turbocharger assembly See Figure 2 page 5 8 Inspect the compressor oil T fitting for the green paint mark on the side of the fitting See Figure 3 page 6
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