Vehicle report

2012 CATERPILLAR CT660

Service bulletins

98 bulletins

Technical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.

TEBE896500

Service Bulletin/Repair Instructions

Product Link models PL121/321s will stop sending data after April 6th, 2019. Date codes will appear as if coming from the past so the customer interface (UI) will not recognize those back dated messages and no data will appear in the UI.

M0066850-01

Service Bulletin/Repair Instructions

EXTENDED LIFE COOLANT (ELC) EXHIBITING NITRITE DEPLETION IN MACHINES EQUIPPED WITH ALUMINUM RADIATORS-NITRITES IN EXTENDED LIFE COOLANT (ELC) CAN REACT WITH THE ALUMINUM COOLER TO PRODUCE ELEVATED PH AND LOW NITRITE LEVELS IN SCHEDULE OIL SAMPLING (S@™O@™S) SAMPLES. AS THERE ARE MULTIPLE ISSUES THAT CAN CONTRIBUTE TO THE DEPLETION OF NITRITE, CONTACT YOUR LOCAL CAT DEALER TO REQUEST LEVEL 2 COOLANT ANALYSIS IF NITRITE DEPLETION IS EXPERIENCED.

M0074062-00

Service Bulletin/Repair Instructions

ECPC VALVES MAY FAIL ON CAT TRANSMISSION SYSTEMS. USAGE OF NON-CAT PARTS IN TRANSMISSION SYSTEM, 244-3114 MODULATING VALVE GP MAY EXPERIENCE FAILURE MODES. CATERPILLAR RECOMMENDS USAGE OF A KNOWN CAT PART.

REHS9179-00

Service Bulletin/Repair Instructions

SPN 731 FMI 16/18 KNOCK DETECTED FOR CAT CT11 AND CT13 ENGINES - THE FOLLOWING PROCEDURE IS FOR TROUBLESHOOTING THE SPN 731 FMI 16/18 KNOCK DETECTED DIAGNOSTIC CODE.

REHS9168-01

Service Bulletin/Repair Instructions

REPLACEMENT PROCEDURE FOR HIGH-PRESSURE TURBOCHARGER CARTRIDGE ON CT11 AND CT13 ENGINES - THIS PROCEDURE PROVIDES INSTRUCTIONS FOR REPLACING THE HIGH-PRESSURE (HP) TURBOCHARGER CENTER SECTION (CARTRIDGE).

REHS9183-00

Service Bulletin/Repair Instructions

OXYGEN SENSOR CALIBRATION PROCEDURE FOR THE CT VOCATIONAL TRUCKS - THIS SPECIAL INSTRUCTION EXPLAINS THE OXYGEN SENSOR (O2S) CALIBRATION PROCEDURE THAT MUST BE FOLLOWED WHEN REPLACING OR CALIBRATING THE (O2S) ON THE CT VOCATIONAL TRUCKS.

M0070506-00

Service Bulletin/Repair Instructions

EXCESSIVE ENGINE OIL CONSUMPTION ON CT13 ENGINES WITH SCR - ON CERTAIN CT13 ENGINES WITH SCR, CARBON CAN BUILD UP ON THE TOP LANDS OF THE PISTONS AND CAUSE THE PISTON RINGS TO STICK, LEADING TO LOSS OF OIL CONTROL IN THE POWER CYLINDERS AND INCREASED OIL CONSUMPTION. AN UPDATED CYLINDER KIT IS NOW AVAILABLE TO ADDRESS THIS CONDITION.

M0069062

Service Bulletin/Repair Instructions

TECHNICAL INFORMATION BULLETIN CONVEYING INFORMATION TO DEALERS TO IMPROVE DIAGNOSTIC AND TROUBLESHOOTING PROCEDURES. THIS RELATED TO SOME INTAKE THROTTLE VALVES WHICH CAUSE FREQUENT REGENERATION IN THE ENGINE EXHAUST AFTERTREATMENT SYSTEM. THIS COULD RESULT IN LOW POWER, UNIT UNABLE TO COMPLETE A REGENERATION OR SOOT LOAD ACCUMULATION ISSUES.

M0069062-00

Service Bulletin/Repair Instructions

THE INTAKE THROTTLE VALVE IS CAUSING REGENERATION ISSUES ON CERTAIN ON-HIGHWAY TRUCK ENGINES - CUSTOMERS MAY EXPERIENCE FREQUENT REGENERATIONS, LOW POWER, AND UNIT UNABLE TO COMPLETE A REGENERATION OR SOOT LOAD ACCUMULATION ISSUES. INSPECT THE ITV CONNECTOR FOR ANY ISSUES LIKE BACKED OUT PINS, CORROSION, OR LOOSENESS. FORM A CONNECTION WITH ENGINE DIAGNOSTICS AND RUN AN OBFCT.

M0068796-00

Service Bulletin/Repair Instructions

COOLANT PIPE LEAKS ON CERTAIN CT660 ON HIGHWAY TRUCKS - THE NEW COOLANT PIPE WITH SUPPORT BRACKET HAS BEEN UPDATED TO BE MORE ROBUST AND IMPROVED SERVICE LIFE.

M0068152-00

Service Bulletin/Repair Instructions

RECALIBRATION OF CAT ® CT660 15L ELECTRONIC CONTROL MODULE (ECM) IS NOW AVAILABLE FOR CERTAIN CT660SON-HIGHWAY TRUCKS TO IMPROVE EXHAUST AFTER TREATMENT, EGR, OXYGEN SENSOR AND COLD START ISSUES.

M0068434-00

Service Bulletin/Repair Instructions

RECALIBRATION OF CAT ® CT660S 13L ELECTRONIC CONTROL MODULE (ECM) IS NOW AVAILABLE FOR CERTAIN ON-HIGHWAY TRUCKS TO IMPROVE RE-ENABLEING OF THE ON-BOARD DIAGNOSTIC MONITOR AND FAULT REACTION.

M0067812-00

Service Bulletin/Repair Instructions

AFTERTREATMENT OUTLET NOX SENSOR INTERNAL WATER SHIELD INSTALLATION - WATER INTRUSION CAN CAUSE THE MALFUNCTION OR FAILURE OF THE AFTERTREATMENT OUTLET NOX SENSOR ON VERTICAL EXHAUST CONFIGURATIONS. THE RECOMMENDED REPAIR IS TO INSTALL A RAIN SHIELD WHICH PREVENTS WATER FROM TRAVELING DOWN VERTICAL EXHAUSTS FROM CONTACTING THE OUTLET NOX SENSOR.

TEBE3542-04

Service Bulletin/Repair Instructions

PRODUCT SUPPORT PROGRAM FOR REPLACING THE NUMBER TWO CLUTCH SEAL HOUSING FASTENERS ON CERTAIN CT660 ON-HIGHWAY TRUCKS -THIS REVISED SERVICE LETTER REPLACES THE 28AUG2015 (REVISED 24SEP2015) SERVICE LETTER. CHANGES HAVE BEEN MADE TO THE PARTS NEEDED AND ACTION REQUIRED. THE EXISTING 9X-2045 SCREWS CAN LOOSEN ON CERTAIN CT660 ON-HIGHWAY TRUCKS. IF THE EXISTING 9X-2045 SCREW FAILS DAMAGE TO THE NUMBER TWO CLUTCH CAN RESULT. REFER TO SEPD1961 "AN IMPROVED FASTENING PROCESS FOR THE NUMBER TWO CLUTCH SEAL HOUSING IS USED ON CERTAIN CX31 AND CX35 TRANSMISSIONS" FOR REWORK INSTRUCTIONS WHEN PERFORMING A BEFORE FAILURE REPAIR. REFER TO UENR0125 WHEN PERFORMING AN AFTER FAILURE REPAIR WHERE RESULTANT DAMAGE TO THE TRANSMISSION MAY NEED TO BE ADDRESSED.

TEBE3542-03

Service Bulletin/Repair Instructions

PRODUCT SUPPORT PROGRAM FOR REPLACING THE NUMBER TWO CLUTCH SEAL HOUSING FASTENERS ON CERTAIN CT660 ON-HIGHWAY TRUCKS - THIS REVISED SERVICE LETTER REPLACES THE 28AUG2015 (REVISED 10SEP2015) SERVICE LETTER. CHANGES HAVE BEEN MADE TO THE SERVICE CLAIM ALLOWANCES. THE EXISTING 9X-2045 SCREWS CAN LOOSEN ON CERTAIN CT660 ON-HIGHWAY TRUCKS. IF THE EXISTING 9X-2045 SCREW FAILS DAMAGE TO THE NUMBER TWO CLUTCH CAN RESULT. REFER TO SEPD1961 "AN IMPROVED FASTENING PROCESS FOR THE NUMBER TWO CLUTCH SEAL HOUSING IS USED ON CERTAIN CX31 AND CX35 TRANSMISSIONS" FOR REWORK INSTRUCTIONS WHEN PERFORMING A BEFORE FAILURE REPAIR. REFER TO UENR0125 WHEN PERFORMING AN AFTER FAILURE REPAIR WHERE RESULTANT DAMAGE TO THE TRANSMISSION MAY NEED TO BE ADDRESSED.

TIBU8452-01

Service Bulletin/Repair Instructions

CT11 AND CT13 CYLINDER HEAD CRACK INSPECTION GUIDE - CT11 AND CT13 CYLINDER HEADS ARE CRACKING IN THE FIELD. THIS TECHNICAL INFORMATION BULLETIN (TIB) PROVIDES A GUIDE FOR DETERMINING THE SEVERITY AND IMPACT OF CYLINDER HEAD CRACKS ON CT11 AND CT13 ENGINES.

TEBE3542-01

Service Bulletin/Repair Instructions

PRODUCT SUPPORT PROGRAM FOR REPLACING THE NUMBER TWO CLUTCH SEAL HOUSING FASTENERS ON CERTAIN CT660 ON-HIGHWAY TRUCKS - THE EXISTING 9X-2045 SCREWS CAN LOOSEN ON CERTAIN CT660 ON-HIGHWAY TRUCKS. IF THE EXISTING 9X-2045 SCREW FAILS DAMAGE TO THE NUMBER TWO CLUTCH CAN RESULT. REFER TO SEPD1961 "AN IMPROVED FASTENING PROCESS FOR THE NUMBER TWO CLUTCH SEAL HOUSING IS USED ON CERTAIN CX31 AND CX35 TRANSMISSIONS" FOR REWORK INSTRUCTIONS WHEN PERFORMING A BEFORE FAILURE REPAIR. REFER TO UENR0125 WHEN PERFORMING AN AFTER FAILURE REPAIR WHERE RESULTANT DAMAGE TO THE TRANSMISSION MAY NEED TO BE ADDRESSED.

TEBE3533-00

Service Bulletin/Repair Instructions

PRODUCT SUPPORT PROGRAM FOR REPLACING THE RADIATOR CORE ON CERTAIN CT660 ON HIGHWAY TRUCKS EQUIPPED WITH A CT15 ENGINE - THE EXISTING RADIATOR CORE CAN CRACK IN COLD CLIMATES ON CERTAIN CT660 ON HIGHWAY TRUCKS EQUIPPED WITH A CT15 ENGINE. IF THE EXISTING RADIATOR CORE FAILS IT CAN/WILL DEVELOP A COOLANT LEAK. REMOVE THE EXISTING RADIATOR CORE AND HAVE A LOCAL RADIATOR SHOP BUILD A REPLACEMENT CORE AND RE-INSTALL.

TIBU7226-00

Service Bulletin/Repair Instructions

A/C Refrigerant Quantity Is Incorrect for CT660 On Highway Trucks - In table 14 in chapter 6 of System Operation, Disassembly and Assembly, and Specifications, UENR1844-01 the refrigerant quantity is incorrect. The refrigerant quantity for CT660 On Highway Trucks (all engines) is 1.70 kg (3.75 lb), 1700 g (60oz)

IK0400125

Service Bulletin/Repair Instructions

NAVISTAR: VARIOUS TYPES NAVISTAR VEHICLES WILL BE RECEIVING UPDATES ON THE REAR S CAM TUBE/ BRACKET PARTS. *TA UPDATED 9/10/15 *CN

2860-00

Service Bulletin/Repair Instructions

INCORRECT HOUSING ON THE REAR TANDEM AXLE ON SOME CT660 HIGHWAY TRUCKS. DAMAGE TO CARRIER AND WHEEL BEARINGS CAN OCCUR IF VEHICLE IS DRIVEN TOO LONG *CN

SB-SEPD-1969

Service Bulletin/Repair Instructions

CATERPILLAR: ON CERTAIN TRUCKS WITH MANUAL TRANSMISSION, LOWER SHIFT LEVER BOOT NEEDS TO BE MODIFIED TO PREVENT INTERFERENCE WITH SHIFT TOWER, ALLOWING TRANSMISSION TO REMAIN ENGAGED AT TIME OF OPERATION. MODEL CT 660. *PE

TEBE-2792

Service Bulletin/Repair Instructions

CATERPILLAR: THE ENGINE EMISSIONS IS EXPERIENCING A DEFECT, ON CERTAIN TRUCKS, AND WOULD NEED TO BE RECALIBRATED TO ELECTRONIC CONTROL MODULE (ECM) LATEST FILE. MODEL 2013-14 CT660, CT680 LG, CT681 SG. *PE

TIBU-7675-00

Service Bulletin/Repair Instructions

CATERPILLAR: IMPROPER ROUTING OF TRANSMISSION HARNESS IS DAMAGED BY SEAT FRAME AND NEEDS REROUTING FROM SEAT MECHANISM TO ELIMINATE BEING PINCHED, CUT, OR RUBBED OR HAVE REPLACE, IF DAMAGED BEYOND REPAIR. MODEL CT660. *PE

TIBU-7707-00

Service Bulletin/Repair Instructions

CATERPILLAR: THE TUBE, IN SOME APPLICATIONS, WAS IMPROPERLY CONNECTED TO SUSPENSION DUMP SWITCH FAILED AND ALLOW AIR TO LEAK. MODEL CT660. *PE

REHS-6609-00

Service Bulletin/Repair Instructions

CATERPILLAR: INSTRUCTION PROCEDURAL REGARDING INSTALLATION OF UPDATED TURBOCHARGER OIL SUPPLY TUBE AND T-FITTING AND HOW TO REROUTE CERTAIN COOLANT HOSES INTERFERING WITH ROUTING OF NEW TURBOCHARGER OIL SUPPLY TUBE. MODEL CT660. *PE

REHS-9187

Service Bulletin/Repair Instructions

CATERPILLAR: PROCEDURE INFORMATION ON ADDING/INSTALLING SUPPORT BRACKETS, TO BOTTOM OF HOOD, TO PREVENT CRACKING. *PE UPDATED 10/21/14. *PE

REHS9187-02

Service Bulletin/Repair Instructions

PROCEDURE TO INSTALL THE BOTTOM SIDE HOOD SUPPORT BRACKET ON THE CT660 - THE PROCEDURE BELOW EXPLAINS THE PROCESS TO ADD A SUPPORT BRACKET TO THE BOTTOM SIDE OF THE HOOD. THIS BRACKET WILL HELP PREVENT HOOD CRACKS.

TIBU-7408

Service Bulletin/Repair Instructions

CATERPILLAR: THE FAN WILL SLIP AND CAUSE EXCESSIVE OVERHEATING THAT WILL DAMAGE THE CLUTCH, IF AIR PRESSURE THAT KEEPS FAN DRIVE ENGAGED, DROPS BELOW 621 KPA (90 PSI). MODEL CT660. *PE

TIBU-6686-02

Service Bulletin/Repair Instructions

CATERPILLAR: FASTENER IN JOINT BETWEEN CAB/FRAME AND CAB SHOCK ABSORBER IS UNDER TORQUED, ALONG WITH LATERAL CONTROL ROD AND CAB/FRAME FASTENER, ALLOWING MOVEMENT AND RATTLING NOISE TO OCCUR, AND NEED RETORQUING TO SPECIFICATION. *PE

TEBE-1360

Service Bulletin/Repair Instructions

CATERPILLAR: THE BATTERY CABLES CURRENT ROUTING, NEAR STARTER, IS RUBBING AGAINST THE BRACKET BOLT THAT HOLDS IT IN PLACE. MODEL CT660, CT681. *PE

REHS-9192

Service Bulletin/Repair Instructions

CATERPILLAR: UNDER CERTAIN CONDITION, CONDENSATION, FROST, MOISTURE, OR FOG IS VERY VISIBLE INSIDE HEADLIGHT LENS. MODEL CT660. *PE

SEPD-1794

Service Bulletin/Repair Instructions

CATERPILLAR: SPECIAL INSTRUCTION PROVIDED REGARDING THE INSTALLATION THE BOTTOM SIDE HOOD SUPPORT BRACKET. *PE

TIBU-7608

Service Bulletin/Repair Instructions

CATERPILLAR: PROCEDURE FOR REPAIRING A HIGH FAULT CODE FOR DEFSP TEMPERATURE OUT OF RANGE AND NEED TO UPDATE CALIBRATION USING NETS. MODEL CT660. *PE

REHS8717-02

Service Bulletin/Repair Instructions

INSTALLATION INSTRUCTION FOR INTERMITTENT WIPER SWITCH FOR CERTAIN ON HIGHWAY TRUCK - THE PURPOSE OF THIS DOCUMENT IS TO PROVIDE RECOMMENDED INSTALLATION INSTRUCTION FOR INTERMITTENT WIPER SWITCH. NOTE: CAT UNITS BUILT PRIOR TO FEBRUARY 2013 WERE EQUIPPED WITH A THREE STATE SWITCH.

REHS9155-00

Service Bulletin/Repair Instructions

2010 CATERPILLAR CT11 AND CT13 ENGINE EGR COOLER SERVICE PLAN - THIS SPECIAL INSTRUCTION DESCRIBES THE EGR COOLER SERVICE PLAN FOR THE 2010 CATERPILLAR CT11 AND CT13 ENGINE.

TIBU7608-00

Service Bulletin/Repair Instructions

CT13 3361-3 DEFSP TEMP OUT OF RANGE HIGH FAULT CODE DIAGNOSTICS - THE DOCUMENT BELOW SHOWS THE REPAIR PROCEDURE FOR THE 3361-3 DEFSP TEMP OUT OF RANGE HIGH FAULT CODE.

TIBU7603-00

Service Bulletin/Repair Instructions

SPN 111 FMI 1 – 2010-2013 CT11 AND CT13 COOLANT CONSUMPTION - THIS TECHNICAL INFORMATION BULLETIN (TIB) ADDRESSES LOW COOLANT (SPN 111 FMI 1) AND/OR COOLANT CONSUMPTION ON 2010 TO 2013 – CT11 AND CT13 LITER ENGINES. THE PROCEDURE WILL GUIDE THE USER THROUGH COMMON FAILURE AREAS, DIAGNOSTIC TOOLS, SRTS, AND WARRANTY FILING.

REHS9188-00

Service Bulletin/Repair Instructions

SPN 190 FMI 0 ENGINE OVERSPEED VEHICLE EVENT FAULT FOR CAT CT11 AND CT13 ENGINES -

REHS9167-00

Service Bulletin/Repair Instructions

SPN 3055 FMI 15 BELOW MINIMUM WITH MAXIMUM COMMAND TROUBLESHOOTING FOR CERTAIN CT660 ON HIGHWAY TRUCKS - THIS SPECIAL INSTRUCTION PROVIDES THE INFORMATION TO DIAGNOSE AND TROUBLESHOOT BELOW MINIMUM AND MAXIMUM COMMAND ON THE MACHINES LISTED ABOVE.

REHS9166-00

Service Bulletin/Repair Instructions

SPN 3055 FMI 1 NO START DUE TO LOW RAIL FUEL PRESSURE TROUBLESHOOTING FOR CERTAIN CT660 ON HIGHWAY TRUCKS - THIS SPECIAL INSTRUCTION PROVIDES THE INFORMATION TO DIAGNOSE AND TROUBLESHOOT LOW RAIL FUEL PRESSURE ON THE MACHINES LISTED ABOVE.

SEPD-1774

Service Bulletin/Repair Instructions

CATERPILLAR: AN IMPROVED AND NEW TORQUE VALUE WILL HELP REDUCE THE NOISE AND MAKE CAB SHOCK ABSORBER MORE RELIABLE, IS NOW AVAILABLE, FOR CERTAIN TRUCKS. *PE

REHS-9183

Service Bulletin/Repair Instructions

CATERPILLAR: INFORMATION PROVIDED REGARDING THE OXYGEN SENSOR (02S) CALIBRATION SPECIAL INSTRUCTION PROCEDURE WHEN REPLACING OR CALIBRATING CT VOCATIONAL TRUCKS. *PE

TIBU-7549

Service Bulletin/Repair Instructions

CATERPILLAR: SOME TRUCKS, IF AN INTERNAL OIL SEAL (HIGH PRESSURE TURBO), IS CONTAMINATED WITH ENGINE COOLANT, ITS SUSCEPTIBLE TO DAMAGE, AFTER THE EGR COOLANT FAILS AND NEEDS TO BE INSPECTED. *PE

TEBE1219-00

Service Bulletin/Repair Instructions

PRODUCT IMPROVEMENT PROGRAM FOR REMOVING 3866732, 3884380, AND 4325262 GAUGE CLUSTERS FROM DEALER PARTS STOCK - THE EXISTING 3866732, 3884380, AND 4325262 GAUGE CLUSTERS CAN HAVE THE NEEDLES STICK. REMOVE 3866732, 3884380, AND 4325262 GAUGE CLUSTERS FROM DEALER PARTS STOCK. REFER TO THE PARTS DISPOSITION.

REHS-8717

Service Bulletin/Repair Instructions

CATERPILLAR: INFORMATION INSTRUCTIONS, FOR SOME TRUCKS, ON THE INSTALLATION OF THE INTERMITTENT WIPER SWITCH. MODEL CT660. *PE

TIBU-7404

Service Bulletin/Repair Instructions

CATERPILLAR: THE HYDROCARBON INJECTOR PORT IS PLUGGED CAUSING FREQUENT OR IMPROPER AFTERTREATMENT REGENERATION FUEL INJECTOR WHICH IS COVERED IN SOOT AND PREMATURELY PLUGGING. MODEL CT660. *PE

TEBE-0095

Service Bulletin/Repair Instructions

CATERPILLAR: INFORMATION PROVIDED REGARDING INTERMITTENT WIPERS INSTALLATION ON CERTAIN TRUCKS. CT660. *PE

TEBE-O902

Service Bulletin/Repair Instructions

CATERPILLAR: ON CERTAIN TRUCKS, AFTER IN SERVICE FOR SHORT TIME, THE RING EXISTING SUPPORT ASSEMBLY WILL FATIGUE AND WILL BREAK. MODEL CT660. *PE

TIBU-7342

Service Bulletin/Repair Instructions

CATERPILLAR: FAILURE OF HIGH PRESSURE TURBO ON SOME TRUCKS AND REPAIR SOLUTION IN TROUBLESHOOTING GUIDE. MODEL CT660 ON HIGHWAY. *PE UPDATED 4/18/14. *PE

TIBU-7394

Service Bulletin/Repair Instructions

CATERPILLAR: INFORMATION REGARDING THE DOSER NOZZLE KEEPS PLUGGING UP FROM THE CARBON BRIDGING OVER NOZZLE, IN SOME TRUCKS, AND A NEW DESIGN/STYLE WILL REPLACE OLD STYLE, AND REDUCE CARBON BRIDGING. MODEL CT660. *PE

REHS-5595

Service Bulletin/Repair Instructions

CATERPILLAR: SPECIAL INFORMATION INSTRUCTIONS ON INSTALLATION, TROUBLESHOOTING AND CONFIGURATION PROCEDURE FOR RETROFIT PRODUCT LINK PL420. MODEL CT660. *PE

TEBE-0758-02

Service Bulletin/Repair Instructions

CATERPILLAR: THE HIGH TEMP RADIATOR CAN FAIL, IN COLD WEATHER, DUE TO THERMAL SHOCK LOAD ON CERTAIN TRUCKS AND THERMOSTAT HOUSING AND THERMOSTATS NEED TO BE REPLACE. MODEL CT660. *PE

TEBE-0738-00

Service Bulletin/Repair Instructions

CATERPILLAR: A WHISTLE SOUND, ON SOME TRUCKS, CAUSED BY THE DESIGN OF THE EXISTING SCR PIPE. MODEL CT660. NO YEARS LISTED. *PE

TIBU-7416

Service Bulletin/Repair Instructions

CATERPILLAR: DUE TO LOCATION OF RADIO ANTENNA AND CB ANTENNA, THEY KEEP BREAKING WHEN HITTING TREE LIMBS ON NARROW ROADS AND SHOULD BE SWITCHED. MODEL CT660. *PE

TIBU-7417

Service Bulletin/Repair Instructions

CATERPILLAR: THE AFI FUEL SUPPLY LINE CAN RUB THROUGH FROM FUEL SYSTEM RETURN LINE, DUE TO INCORRECT ROUTING OF FUEL LINES. CAN CAUSE REGEN ISSUES OR AN INABILITY TO PERFORM REGENS. MODEL CT660. *PE

REHS-8726

Service Bulletin/Repair Instructions

CATERPILLAR: INFORMATION BEING PROVIDED REGARDING PROCEDURES, IN REPAIRING AND TESTING, OF MISPLACED VALVE BRIDGES ON SOME ENGINES, IN SOME TRUCKS. MODEL CT660. NO YEARS LISTED. *PE

TEBE-0790

Service Bulletin/Repair Instructions

CATERPILLAR: WHEN TRUCK IS EITHER PARKED OR STOPPED, ENGINE WOULD INCREASE RPM WHILE IDLING, AND CALIBRATION HAS BEEN UPDATED FOR ENGINE ELECTRONIC CONTROL MODULE (ECM). *PE

TIBU-7199

Service Bulletin/Repair Instructions

CATERPILLAR: DUE TO FRONT AXLE FRONT SPRING PIN IS COMING LOOSE, TRUCKS EXPERIENCING FAILURES, BECAUSE BOLT ARE NOT LARGE ENOUGH TO PREVENT SPRING FROM MOVING SIDE TO SIDE AND CAUSING A POPPING NOISE AND ALLOWING PIN TO BACK OUT. MODEL CT660. NO YEARS LISTED. *PE

TEBE-0420

Service Bulletin/Repair Instructions

CATERPILLAR: THE EXISTING FAILURE OF EXHAUST GAS RECIRCULATION (EGR) VALVE, ON CERTAIN TRUCKS, CAUSES VARIOUS PERFORMANCE PROBLEMS AND WOULD NEED TO BE REPLACED. MODEL CT660. *PE

TIBU-7281

Service Bulletin/Repair Instructions

CATERPILLAR: THE GAUGES (SPEEDOMETER, TRANSMISSION OIL TEMPERATURE, TACHOMETER, ETC.), ON INSTRUMENT PANEL, ARE BEING OR READING ERRACTICALLY OR INCORRECT VALUES ARE DISPLAYED. MODEL CT660. *PE UPDATED 1/28/14. *PE

IK-1200960

Service Bulletin/Repair Instructions

INTERNATIONAL: DUE TO ROAD VIBRATION, ON SOME TRUCKS, THE POWER STEERING LINE P CLAMP AND OIL DIPSTICK TUBE P CLIP MAY POSSIBLY BREAK. MODEL CT660. *PE

TIBU-7306

Service Bulletin/Repair Instructions

CATERPILLAR: THE MOUNTING HARNESS LOCATION OF ECM MOUNT HAS ENGINE HARNESS RUBBING AGAINST IT AND IF ECM MOUNT NEEDS TO BE REMOVED, FOR ANY REASON, FROM ENGINE, PERFORM MODIFICATION TO WIRE HARNESS MOUNT AND THEN INSPECT HARNESS MOUNT. MODEL CT660. NO YEARS LISTED. *PE

TIBU730600

Service Bulletin/Repair Instructions

ECM Mount Modification - The engine harness can rub on the harness mounting location of the ECM mount. If the ECM mount is removed from the engine for any reason, perform the modification to the wire harness mount and inspect the harness.

REHS-8728

Service Bulletin/Repair Instructions

CATERPILLAR: INFORMATION INSTRUCTIONS REGARDING, THE FLUSHING AND CLEANING CONTAMINATED COOLING SYSTEM, PROCEDURE WHEN ENGINE OIL ENTERS AND MIXES WITH ENGINE COOLANT, CAUSING AN OIL COOLER FAILURE. MODEL CT660. NO YEARS LISTED. *PE

REHS872800

Service Bulletin/Repair Instructions

CT11, CT13, and CT15 Cooling System Flush After Oil Cooler - In the event of an oil cooler failure, engine oil may have entered the cooling system and mixed with the engine coolant. This special instruction contains the procedure for flushing and cleaning the contaminated cooling system.

REHS8727

Service Bulletin/Repair Instructions

CATERPILLAR: INFORMATION REGARDING THE DIAGNOSTIC PROCEDURE FOR STAND ALONE REAL TIME CLOCK (SART) MODULE RELATED CODES ON SOME TRUCKS. MODEL CT660. NO YEARS LISTED. *PE

REHS872700

Service Bulletin/Repair Instructions

SART Module Diagnostic Procedure for Certain On Highway Trucks - The technician may notice that a code below is active or inactive. The customer might not mention a warning light for this code alone. Diagnostic Information and procedures for the Stand Alone Real Time clock (SART) module-related codes are explained in this Special Instruction.

SEPD166800

Service Bulletin/Repair Instructions

Sheppard Gearbox and Power Steering Pump Specifications Are Now Available - Specification charts are now available for Sheppard power steering gearboxes and power steering pumps on the above listed machines. Table 1 is the specification chart for the Sheppard power steering gearboxes. Table 2 is the specification chart for the power steering pumps.

SEPD-1667

Service Bulletin/Repair Instructions

CATERPILLAR: INFORMATION BEING PROVIDED, AS A GUIDELINE, FOR THE INSPECTION OF BUFFING, POLISHING BODY AND PAINT. MODEL CT660. NO YEARS LISTED. *PE

TIBU728300

Service Bulletin/Repair Instructions

CT660 Vision Link "Ghost Codes" Instrument Cluster Generated Codes - Ghost codes show up on Vision Link, but not on the ECM's. The gauge cluster can generate some fault codes. The only way to read these codes are on Vision Link.

SEPD-1665

Service Bulletin/Repair Instructions

CATERPILLAR: ON SOME ENGINES, THE VALVE COVERS HAVE BOLTS THAT VARIES IN DIFFERENT LENGTHS. MODEL CT660. NO YEARS LISTED. *PE

SEPD166500

Service Bulletin/Repair Instructions

CT11 and CT13 Valve Cover Bolts - The valve covers on the CT11 and CT13 engines contain bolts that have different lengths.

TIBU728200

Service Bulletin/Repair Instructions

Gage Cluster Transmission Oil Temperature Is Inaccurate After Cluster Replacement - The transmission oil temperature gage reads maximum when a new gage cluster is installed. The gage cluster should not be replaced when transmission oil temperature reads maximum after new cluster is installed. The cluster should be flashed to the 1.3 software for NON SCR trucks. SCR trucks have the correct software installed.

TIBU728100

Service Bulletin/Repair Instructions

CT660 Instrument Gauge Cluster - Gauges, including speedometer, tachometer, transmission oil temperature, and others are reading erratically or having incorrect values. These gauges are all part of the primary cluster on the vocational truck. Many clusters are being returned NFF. A detailed description of the actual problem in SIMSi or the claim story is needed.

SEPD166000

Service Bulletin/Repair Instructions

Rear Axle Alignment Specifications - The following tables display rear axle alignment specifications and target values. Use the target values when readjusting the rear axle alignment.

TIBU-7225

Service Bulletin/Repair Instructions

CATERPILLAR: DUE TO EARLY HOURS FAILURES, INFORMATION PROVIDED FOR PROACTIVE INSPECTION SHEETS TO HAVE DOCUMENTED REPAIRS PERFORMED AND CHECKED ON CHECK SHEET, TO REDUCE FAILURES AND DOWN TIME. MODEL CT660. NO YEARS LISTED. *PE

TIBU722500

Service Bulletin/Repair Instructions

Proactive Inspection Sheet for Certain CT660 On-Highway Trucks - Certain Cat CT660 On-Highway Trucks could experience known product early hour failures. These trucks will benefit from the completion of the following proactive truck inspection. One by one go through the inspection sheet and perform all known documented repairs to each and every item on the check sheet. Proper execution of these repairs will help reduce customer failures and down time.

TEBE018500

Service Bulletin/Repair Instructions

PRODUCT SUPPORT PROGRAM FOR INSPECTING THE 396-3793 ENGINE WIRING HARNESS AND POSSIBLY REPAIRING THE ENGINE WIRING HARNESS ON CERTAIN CT660 ON HIGHWAY TRUCKS - Inspect the engine wiring harness for all possible rub points and verify the harness routing and clipping. If necessary, make any and all repairs to engine wiring harness. Refer to the attached Rework Procedure.

TIBU721900

Service Bulletin/Repair Instructions

Certain CT660 Trucks with Manual Transmissions Have Been Disengaging Out of Select Gears - Certain CT660 trucks with manual transmissions have been popping out of select gears. The popping out of gear is caused by the shift tower experiencing interference with the lower shift boot. This problem affects trucks that were built before April 30th, 2013. In order to prevent interference between the shift tower and the lower shifter boot, trim the lower shifter boot using scissors or a knife to make a hole that is three inch in diameter, centered on the shifter bar when the shifter bar is in the neutral position.

REHS774301

Service Bulletin/Repair Instructions

Procedure to Install the High Pressure Fuel Pump on the CT660 On Highway Truck - This Special Instruction provides the necessary information in order to install the high-pressure fuel pump on CT660 On Highway Truck.

REBE997000

Service Bulletin/Repair Instructions

PRODUCT SUPPORT PROGRAM FOR INSTALLING A GROUND WIRE FOR THE AC COMPRESSOR CLUTCH SOLENOID ON CERTAIN CT660 ON HIGHWAY TRUCKS - There is not a ground wire to the AC relay coil. The deactivation of the AC compressor clutch solenoid will not work properly. Thermal switch and pressure switches will not work properly and on certain CT660 On Highway Trucks failure of the AC compressor can occur. Install a ground wire for AC relay inside of fuse/breaker panel of the truck. Refer to the attached Rework Procedure.

REBE993200

Service Bulletin/Repair Instructions

PRODUCT SUPPORT PROGRAM FOR REPLACING THE CLUTCH LEVER AND ROD ASSEMBLY ON CERTAIN CT660 ON HIGHWAY TRUCK - The existing clutch lever and rod assembly does not allow for proper clutch adjustment on certain CT660 On Highway Trucks. If the existing clutch lever components are not replaced, proper adjustment may not be able to be achieved.

REBE977300

Service Bulletin/Repair Instructions

PRODUCT SUPPORT PROGRAM FOR REWORKING THE AIR CONTROL VALVE (ACV) CONNECTOR ON CERTAIN CT660 ON HIGHWAY TRUCKS - Some ACV connectors were produced with plugs installed backwards in empty connector cavities. This could permit water intrusion, which could short the terminals. This may lead to ACV failure or EGR cooler plugging. This repair will involve reinstalling the plugs in the correct orientation to ensure the connector is tightly sealed.

REHS772804

Service Bulletin/Repair Instructions

Replacement Procedure for Fuel Injection Pump on Certain CT11 and CT13 Engines in CT660 Vocational Trucks -

REHS-8430

Service Bulletin/Repair Instructions

CATERPILLAR: ON CERTAIN TRUCKS, INFORMATION IS PROVIDED REGARDING THE PROGRAMMING AND THE SYNCHRONIZATION OF KEYLESS ENTRY PROBLEMS. MODELS CT660. NO MODEL YEARS LISTED. *PE

TIB-7108

Service Bulletin/Repair Instructions

CATERPILLAR: TO CONNECT THE NEW FIXED STYLE (PIGTAIL) CONNECTOR, FOR FUEL SENDER, WOULD REQUIRE AN ADDITIONAL THREE PARTS TO HARNESS, TO MATE WITH FUEL SENDER. MODEL CT660. NO MODEL YEARS LISTED. *PE

REHS-8421

Service Bulletin/Repair Instructions

CATERPILLAR: SOME AIR CONTROL VALVE (ACV) HAD PLUGS INSTALLED BACKWARDS IN EMPTY CONNECTOR CAVITIES. THE EMPTY CONNECTOR CAVITIES PERMITTED WATER INTRUSION, SHORTING OUT TERMINALS. MODEL CT660. MODEL YEARS NOT LISTED. *PE

IK-1600181

Service Bulletin/Repair Instructions

IKNOW: SOME VEHICLES MAY EXPERIENCE INOPERATIVE DOOR LOCKS OR DIFFICULTY OPENING LOCKS. THE KEY MAY BE BENT. NO MODEL YEARS WERE PROVIDED. *JS

REBE-9520

Service Bulletin/Repair Instructions

CATERPILLAR: ON CT660 TRUCKS EXPERIENCE INCREASE IN ENGINE RPM WHEN IDLING, IN PARK OR NOT MOVING, DUE EXISTING CALIBRATION THAT MAY DAMAGE ENGINE. MODEL CT660 ON-HIGHWAY. NO MODEL YEARS LISTED. *PE

REBE-9157

Service Bulletin/Repair Instructions

CATERPILLAR: THE CHARGE AIR COOLER HOSE ON SOME TRUCKS NEEDS REPLACING, WITH NEW ROBUST DESIGN HOSE, DUE TO EITHER BURST OR COLLAPSED. MODELS CT660 ON-HIGHWAY. NO MODEL YEARS LISTED. *PE

REBE-9198

Service Bulletin/Repair Instructions

CATERPILLAR: ON CERTAIN CT660 ON HIGHWAY TRUCKS, EXISTING AIR DRYER HEATER FAILS TO FUNCTION IN COLD AMBIENT TEMPERATURES AND POSSIBLY FREEZES DUE TO MISSING POWER WIRE IN FUSE PANEL. MODEL CT660. NO MODEL YEARS. *PE

REBE-8955

Service Bulletin/Repair Instructions

CATERPILLAR: ON CERTAIN HIGHWAY TRUCKS, THE HIGH PRESSURE FUEL PUMP MAY BECOME INOPERATIVE DUE TO DEVELOPING A LEAK DURING OPERATION. MODELS CT660. NO MODEL YEARS LISTED. *PE

REBE-8313

Service Bulletin/Repair Instructions

CATERPILLAR: THE PRODUCT LINK WAS NOT INSTALLED ON CERTAIN CT660 BEFORE BEING BUILT AND INFORMATION FOR PRODUCT SUPPORT PROGRAM IS PROVIDED. MODEL CT660. NO MODEL YEARS LISTED. *PE

TIB-6751

Service Bulletin/Repair Instructions

CATERPILLAR: ON CT660 WITH CX31 NON RETARDED TRANSMISSIONS, ISSUE WITH OVERHEATING TRANSMISSION CAUSED BY STEEP GRADE SITUATIONS AND CONFIGURATION OF TRUCKS DUE TO PARKING BRAKE APPLIED AND TRANSMISSION IN GEAR; UNDERSIZED COOLER FOR OPERATING CONDITIONS. NO MODEL OR MODEL YEARS LISTED. *PE

TIB-U-6473-00

Service Bulletin/Repair Instructions

CATERPILLAR: MOISTURE CONDENSATION ON HEADLIGHT LENS WILL BECOME PREVALENT UNDER CERTAIN ATMOSPHERIC CONDITIONS, TURNING DROPLETS, INSIDE LAMP, TO VAPOR AND CAUSING COLD LENS TO HAVE CONDENSATION ON IT. *PE

TIBU-6598-00

Service Bulletin/Repair Instructions

CATERPILLAR: A PERMANENT REPAIR OF BALLOONING AND HOSE COLLAPSING OF THE CHARGE AIR COOLER (CAC) HOSE AT IDLE AND HIGH IDLE. *PE

SEPD166700

Service Bulletin/Repair Instructions

Body and Chassis Paint Guidelines - This general field guideline applies to all CT660 Vocational Trucks for paint/body inspection.

Reading this report

Complaint counts are reports filed with NHTSA, not failure rates. A common model collects more of them than a rare one that breaks more often.

2012 Caterpillar Ct660 Service Bulletins: 98 bulletins | CarFathom