Inability To Drive In First And Second Gear – 2018-2019 Ford Mustang

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NHTSA ID Number: 10230768

Manufacturer Communication Number: TSB 22-2373

Summary

Some 2018-2019 MustangeBay vehicles equipped with a 5.0L engine and a manual transmission may exhibit an inability to drive the vehicle in first and/or second gear. This may be due to a broken 1-2 shift fork. To correct the condition, follow the Service Procedure to replace the 1st/2nd shift fork, the mainshaft 2nd gear, and the 1st/2nd gear synchronizer hub and sleeve.

 


This bulletin supersedes 18-2267.

Model:

FordeBay

2018-2019 MustangeBay

Engine: 5.0L

 

Summary

This article supersedes TSB 18-2267 to update the Parts List.

Issue: Some 2018-2019 MustangeBay vehicles equipped with a 5.0L engine and an MT82 manual transmission may exhibit an inability to drive the vehicle in first and/or second gear. This may be due to a broken 1-2 shift fork. To correct the condition, follow the Service Procedure to replace the first/second shift fork, the mainshaft second gear, and the first/second gear synchronizer hub and sleeve.

Action: Follow the Service Procedure to correct the condition on vehicles that meet all of the following criteria:

 

Parts

Service Part NumberQuantityDescriptionUnit of IssuePiece Quantity
JR3Z-7230-F1First/Second Shift Fork11
JR3Z-7102-A1Mainshaft Second Speed Gear11
JR3Z-7124-C1First/Second Gear Synchronizer Hub and Sleeve11
JR3Z-7052-A1Output Shaft Seal11
W719298-S439eBay1Bolt M12 X 56 MM43
FR3Z-4B496-BeBay3Bolt And Washer, M10 x 1.5 MM13
W717822-S439eBay1Bolt M10 x 19 MM42
BR3Z-5B266-A Inability To Drive In First And Second Gear - 2018-2019 Ford Mustang | small light1Exhaust Gasket11
W705443-S900 Inability To Drive In First And Second Gear - 2018-2019 Ford Mustang | small light1Nut M10 x 1.5MM42
TA-25-BeBayAs NeededMotorcraft® Threadlock and Sealer
TA-16 Inability To Drive In First And Second Gear - 2018-2019 Ford Mustang | small lightAs NeededMotorcraft® Gasket Maker
TA-26 Inability To Drive In First And Second Gear - 2018-2019 Ford Mustang | small lightAs NeededMotorcraft® Threadlock 262
XG-11eBayAs NeededMotorcraft® High Temperature 4×4 Front Axle and Wheel Bearing Grease
XL-2 Inability To Drive In First And Second Gear - 2018-2019 Ford Mustang | small lightAs NeededMotorcraft® High Temperature Nickel Anti-Seize Lubricant
XL-1 Inability To Drive In First And Second Gear - 2018-2019 Ford Mustang | small lightAs NeededMotorcraft® Penetrating and Lock Lubricant
XL-18As NeededMotorcraft® MT82 Transmission Additive XL-18a
XT-11-QDC Inability To Drive In First And Second Gear - 2018-2019 Ford Mustang | small lightAs NeededMotorcraft® Dual Clutch Transmission Fluid

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. Does the shifter move into the first and second gear positions when attempting to engage these gears but the vehicle will not move?

(1). Yes – proceed to Step 2.

(2). No – this article does not apply. Refer to Workshop Manual (WSM), Section 308-03A for normal diagnostics.

2. Remove the transmission from the vehicle. Refer to WSM, Section 308-03A.

3. Disassemble the transmission to the point where the 1-2 shift fork and second gear can be accessed. Refer to the transmission disassembly procedure in WSM, Section 308-03A. Perform Steps 1 and 2 of this procedure then perform Steps 10 through 29. Do not proceed to Step 30.

(1). Steps 14 and 15 are only necessary for 2018 vehicles.

(2). In Step 17, only remove the shift rail detents in the rear transmission housing. It is not necessary to remove the other shift rail detents.

4. Replace the first/second shift fork, the mainshaft second gear, and the first/second gear synchronizer hub and sleeve. Refer to WSM, Section 308-03A.

5. Reassemble the transmission. Refer to the transmission assembly procedure in WSM, Section 308-03A and perform Steps 18 through 52.

(1). Steps 46 and 47 are only necessary for 2018 vehicles.

6. Install the transmission into the vehicle. Refer to WSM, Section 308-03A.

 


2 Affected Products

Vehicle

MAKEMODELYEAR
FORDeBayMUSTANGeBay2018-2019

 


1 Associated Document

Manufacturer Communications

22-2373
04 January 2023

MC-10230768-0001.pdf 139.476KB

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NHTSA ID Number: 10149746

Manufacturer Communication Number: TSB 18-2267

Summary

Some 2018-2019 MustangeBay vehicles equipped with a 5.0L engine and a manual transmission may exhibit an inability to drive the vehicle in first and/or second gear. This may be due to a broken 1-2 shift fork. Follow the Service Procedure steps to correct the condition.

 

1 Associated Document

Manufacturer Communications

18-2267
30 August 2018

MC-10149746-9999.pdf 105.706KB

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