NTB20-053A
Service Bulletin Details
Public Details for: NTB20-053A
Titan 4wd; vibration while driving above 3,500 rpm this bulletin has been amended. See amendment history on the last page. Please discard previous versions of this bulletin.
Models from 9999
9999 NISSAN NISSAN |
Models from 2022
2022 NISSAN TITAN |
Models from 2021
2021 NISSAN TITAN |
Models from 2020
2020 NISSAN TITAN |
Classification: Reference: EM20-004A Date: NTB20-053A March 24, 2022 TITAN 4WD; VIBRATION WHILE DRIVING ABOVE 3,500 RPM This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin. APPLIED VEHICLES: APPLIED DRIVETRAINS: 2020-2022 Titan (A61) 4WD NOTE: This bulletin does not apply to Titan XD IF YOU CONFIRM A vibration is present while driving with the engine speed above 3,500 RPM. ACTION 1. Diagnose the fan coupler. 2. Install the fan coupler kit listed in PARTS INFORMATION, if applicable. The fan coupler kit includes a new fan coupler, fan pulley and fan bracket. IMPORTANT: The purpose of ACTION (above) is to give you a quick idea of the work you will be performing. You MUST closely follow the entire SERVICE PROCEDURE as it contains information that is essential to successfully completing this repair. Nissan Bulletins are intended for use by qualified technicians, not 'do-it-yourselfers'. Qualified technicians are properly trained individuals who have the equipment, tools, safety instruction, and know-how to do a job properly and safely. NOTE: If you believe that a described condition may apply to a particular vehicle, DO NOT assume that it does. See your Nissan dealer to determine if this applies to your vehicle. 1/7 SERVICE PROCEDURE IMPORTANT: Before starting, make sure: ASIST on the CONSULT PC has been synchronized (updated) to the current date. All CONSULT software updates (if any) have been installed. The CONSULT PC is connected to the Internet (Wi-Fi or cable). NOTE: Before starting this procedure, ensure the engine coolant temperature is 81-95 °C (178-203 °F). 1. Connect the CONSULT VI to the vehicle. 2. Open CONSULT on the CONSULT PC. 3. Turn the ignition ON, but do not start the engine. 4. Select Diagnosis (One System). 5. Select ENGINE. 6. Select Data Monitor. 7. Clear all Data Monitor items. 8. Select the following parameters in Data Monitor: ENG SPEED COOLANT TEMP/S COOLING FAN SPD FAN DUTY 9. Start the engine. 10. Using the accelerator pedal, increase the engine speed by approximately 1,000 RPM per second until 5,500 RPM is achieved, then allow the engine speed to return to idle. 11. Perform step 10 a total of five times while observing the COOLING FAN SPD. If the COOLING FAN SPD does not reach 900 RPM or higher, this bulletin does not apply. Return to the ESM for further diagnostic and repair information. If the COOLING FAN SPD reaches 900 RPM or higher, continue to step 12 on page 3. 2/7 NTB20-053A 12. Obtain a screen shot, photo or video of Data Monitor (Figure 1) showing the following: ENG SPEED – 3,500 RPM or above COOLANT TEMP/S – 81-95 °C (178-203 °F) COOLING FAN SPD – 900 RPM or above FAN DUTY – 0 % VIN VER xxxx CONSULT-III plus VIN:XXXXXXXXXXXXXXXXX Country: United States Vehicle: 14.4 Data Monitor Sort by selection Engine Engine Ascending order Line Graph ENG SPEED COOLANT TEMP/S Single List 3500 91 rpm °C COOLANT TEMP/S Engine COOLING FAN SPD Engine FAN DUTY 900 0 rpm % Figure 1 3/7 NTB20-053A 13. Complete the PCC Assistance Request Form in ASIST (Figure 2). a. Enter Dealer Code. b. Enter 17 Digit VIN. c. Select New Engine Form. d. Select Next. Next Figure 2 e. Attach the screen shot, photo or video of Data Monitor collected from CONSULT as described in step 12 on page 3. f. After submitting the Assistance Request Form with the attached image/video, call the PCC at 800-973-9992 (opt 1) for repair pre-approval. 4/7 NTB20-053A 14. Remove the fan bracket (1), fan pulley (2) and the fan coupler (3), shown in Figure 3. Refer to the ESM for removal of the fan bracket, fan pulley, and the fan coupler: ENGINE > ENGINE COOLING SYSTEM > VK56VD > REMOVAL AND INSTALLATION > COOLING FAN Figure 3 15. Install the new fan bracket (see PARTS INFORMATION on the last page of this bulletin). a. Upon installation of the fan bracket, hand tighten but, DO NOT torque the fan bracket bolts. b. Torque the shared A/C compressor/fan bracket bolt first (Figure 4), then torque the remaining fan bracket bolts. HINT: Figure 4 is shown with the idler pulley and the fan pulley installed, but these pulleys will remain removed during fan bracket installation. Idler pulley Fan pulley Torque this bolt first Figure 4 5/7 NTB20-053A 16. Install the remaining components in the reverse order of removal. Refer to the ESM: ENGINE > ENGINE COOLING SYSTEM > VK56VD > REMOVAL AND INSTALLATION > COOLING FAN During installation of the new fan pulley and fan coupler, ensure the paint reference marks are aligned (see Figure 5). Align these yellow reference marks Figure 5 6/7 NTB20-053A PARTS INFORMATION DESCRIPTION PART NUMBER QUANTITY Fan Coupler Kit 21084-1LA8A 1 CLAIMS INFORMATION Submit a Primary Part (PP) type line claim using the following claims coding: DESCRIPTION Check Cooling Fan Speed Check Cooling Fan Speed & Install Fan Coupler Kit (1) PFP (1) OP CODE CX35AA CX36AA SYM DIA ZN 32 FRT 0.2 1.4 Reference the electronic parts catalog and use the Fan Coupling (21082-*****) as the Primary Failed Part (PFP). AMENDMENT HISTORY PUBLISHED DATE REFERENCE July 20, 2020 NTB20-053 March 24, 2022 NTB20-053A DESCRIPTION Original bulletin published Updated APPLIED VEHICLES 7/7 NTB20-053A