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NHTSA ID Number: 10210472
Manufacturer Communication Number: TSB 22-2140
Summary
Some 2015-2020 Mustang Shelby GT350/GT350R vehicles may exhibit a hesitation or surge in the vehicle with no diagnostic trouble codes (DTCs) present. This may be accompanied by an inoperative cruise control system. This may be due to a transmission output shaft flange nut that has come loose, allowing the output shaft tone ring to move in relation to the output shaft causing an erroneous signal. To resolve the condition, follow the Service Procedure steps to replace the output shaft flange nut.
This bulletin supersedes 19-2135.
Model:
2015-2020 Mustang
– Shelby GT350/GT350R
Summary
This article supersedes TSB 19-2135 to update the applicable model years.
Issue: Some 2015-2020 Mustang Shelby GT350/GT350R vehicles may exhibit a hesitation or surge in the vehicle with no diagnostic trouble codes (DTCs) present. This may be accompanied by an inoperative cruise control system. This may be due to a transmission output shaft flange nut that has come loose, allowing the output shaft tone ring to move in relation to the output shaft causing an erroneous signal. To resolve the condition, follow the Service Procedure steps to replace the output shaft flange nut.
Action: Follow the Service Procedure steps to correct the condition on vehicles that meet all of the following criteria:
- 2015-2020 Mustang Shelby GT350/GT350R
- The vehicle exhibits a hesitation or surge with no DTCs present
Parts
| Service Part Number | Quantity | Description | Unit of Issue | Piece Quantity |
| N800594-S101 | 1 | Flange Bolt, M12 x 1.75 x 27 mm | 4 | 4 |
| FR3Z-4B496-B | 3 | Bolt And Washer, M10 x 1.5 mm | 1 | 3 |
| W717822-S439 | 1 | Axle Bolt, M10 x 19 mm | 4 | 2 |
| 4R3Z-7B340-AA | 1 | Output Flange Nut | 1 | 1 |
| TA-25-B | As Needed | Motorcraft® Threadlock and Sealer |
Quantity refers to the amount of the service part number required to repair the vehicle.
Unit of Issue refers to the number of individual pieces included in a service part number package.
Piece Quantity refers to the total number of individual pieces required to repair the vehicle.
As Needed indicates the amount of the part may vary and/or is not a whole number. Parts can be billed out as non-whole numbers, including less than 1.
Service Procedure
1. Remove and discard the output shaft flange nut. Refer to Workshop Manual (WSM) Section 308-03B, Transmission Output Shaft Flange, steps 1, 2, and 3.
2. Install a new output shaft flange nut.
3. Reassemble the vehicle. Refer to the output flange installation procedure in WSM, Section 308-03B, Transmission Output Shaft Flange.
6 Affected Products
Vehicle
1 Associated Document
Manufacturer Communications
22-2140
21 April 2022
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NHTSA ID Number: 10162060
Manufacturer Communication Number: TSB 19-2135
Summary
Some 2015-2019 Mustang GT350/GT350R vehicles may exhibit a hesitation or surge in the vehicle with no diagnostic trouble codes (DTCs) present. This may be accompanied by an inoperative cruise control system. This may be due to a transmission output shaft flange nut that has come loose, allowing the output shaft tone ring to move in relation to the output shaft causing an erroneous signal. To resolve the condition, follow the Service Procedure steps to replace the output shaft flange nut.
1 Associated Document
Manufacturer Communications
19-2135
07 June 2019
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NHTSA ID Number: 10156524
Manufacturer Communication Number: TSB 19-2090
Summary
Some 2015-2019 Mustang GT350/GT350R vehicles may exhibit a hesitation or surge in the vehicle with no diagnostic trouble codes (DTCs) present. This may be accompanied by an inoperative cruise control system. This may be due to a transmission output shaft flange nut that has become loose, allowing the output shaft tone ring to move in relation to the output shaft causing an erroneous signal. To resolve the condition, replace the output shaft flange.
1 Associated Document
Manufacturer Communications
19-2090
22 March 2019
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NHTSA ID Number: 10148712
Manufacturer Communication Number: TSB 18-2322
Summary
Some 2015-2017 Mustang GT350/GT350R vehicles may exhibit a hesitation or surge in the vehicle with no DTCs present. This may be accompanied by an inoperative cruise control system. This may be due to a transmission output shaft flange nut that has become loose, allowing the output shaft tone ring to move in relation to the output shaft causing an erroneous signal. Follow the Service Procedure steps to correct the condition.
1 Associated Document
Manufacturer Communications
18-2322
23 October 2018
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- Easy to use: Simply apply the threadlocker evenly to the thread, tighten the nut, and cure initially for 20 minutes, then fully cure within 24 hours
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- Sealing and leakage prevention: Using thread locker cores instead of solid gaskets, close contact, perfect sealing, and effective leakage prevention
- Prevents Rust and Corrosion: Protects from leaks, rusting, and corrosion and eliminates need to stock up on expensive lock nuts and washers
- Easy to use: Simply apply the threadlocker evenly to the thread, tighten the nut, and cure initially for 20 minutes, then fully cure within 24 hours
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SEOCONTENT-START
Warranty Status: Eligible under provisions of New Vehicle Limited Warranty (NVLW)/Service Part Warranty (SPW)/Special Service Part (SSP)/Extended Service Plan (ESP) coverage. Limits/policies/prior approvals are not altered by a TSB. NVLW/SPW/SSP/ESP coverage limits are determined by the identified causal part and verified using the OASIS part coverage tool. Labor Times Description Operation No. Time 2015-2020 Mustang GT350/GT350R: Replace The Transmission Output Shaft Flange Nut (Do Not Use With Any Other Labor Operations) 222140A 1.6 Hrs. Repair/Claim Coding Causal Part: 7B340 Condition Code: 24
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SEOCONTENT-END
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