98 Ranger slams into 3rd from 2nd.

Tiny
2GUYS
  • MEMBER
  • 1998 FORD RANGER
  • 163,000 MILES
It always has and seems to be worse about it after rebuiling it. It doesn't always do it but it seems to be worse when you are on the throttle hard. You ususally can feel a delay in shift and know when it shifts it will slam. What causes that? It doesn't do it from 4th to 3rd only 2nd to 3rd.
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Saturday, March 10th, 2012 AT 5:03 PM

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Tiny
MERLIN2021
  • EXPERT
Any codes?
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Saturday, March 10th, 2012 AT 5:16 PM
Tiny
MERLIN2021
  • EXPERT
Here is a TSB about 2-3 upshift issues.
M5OD - BUZZING &/OR GRINDING DURING 2-3 SHIFT
TECHNICAL SERVICE BULLETIN
Reference Number(s): 00-3-6
Related Ref Number(s): 00-3-6
ARTICLE BEGINNING
NOISE - "BUZZING" AND/OR "GRINDING" DURING 2-3 SHIFT -
VEHICLES EQUIPPED WITH M50D TRANSMISSION AND BUILT
BEFORE 11/1/1999
SYMPTOMS
TRANSMISSION - M50D - "BUZZING" AND/OR "GRINDING" NOISE DURING 2-3 SHIFT - VEHICLES
EQUIPPED WITH M50D TRANSMISSION AND BUILT BEFORE 11/1/1999
Model(s): Ford: 1998-2000 Explorer, Ranger
Bulletin No: 00-3-6
Date: February 7, 2000
ISSUE
Some vehicles may exhibit a "buzzing" and/or "grinding" noise or a "notchy" feeling during the 2-3
upshift. This may be caused by the 3-4 synchronizer.
ACTION
Replace the 3-4 synchronizer assembly. Refer to the following SERVICE PROCEDURE for
details.
SERVICE PROCEDURE
First, verify that vehicle exhibits a buzzing/grinding/notchy feeling/sensation during 2-3 upshift and
determine if your transmission serial number is greater than the serial number listed below. If the
vehicle does not exhibit a buzzing/grinding/notchy feeling/sensation and is greater than the serial
number listed on the chart below, proceed with other appropriate diagnostics for repair. Reference the
appropriate Workshop Manual for assistance.
NOTE: All transmissions with serial numbers greater than the ones listed
below are not affected. Use the chart below and the sample tag
information to assist in determining if this fix is applicable. The
transmission serial number is located on the tag attached to the left
side of the transmission.
M5OD - BUZZING &/OR GRINDING DURING 2-3 SHIFT -1998 Ford Ranger TRANSMISSION SERIAL NUMBER INFORMATION
1. Drain all fluid from the transmission and remove the transmission following the procedure
outlined in the appropriate Workshop Manual.
2. Disassemble the transmission following the procedure outlined in the appropriate Workshop
Manual.
3. Inspect the brass blocking rings for any damage. If they are not damaged, reuse on reassembly.
4. Replace the synchronizer. Additionally, replace brass blocking rings if necessary.
5. Reassemble the transmission following the procedure outlined in the appropriate Workshop
Manual.
6. Reinstall the transmission and fill with new fluid. Test drive to verify repair.
PARTS INFORMATION
PARTS INFORMATION
WARRANTY INFORMATION
WARRANTY STATUS: Information Only.
OASIS CODES: 505000
Application Transmission Tag Transmission Serial Number
2.5L I-4 4X2 F87A - AB less than D629756
3.0L V-6 4X2 F87A - CA less than D628220
3.0L V-6 4X4 F87A - DA less than D624514
4.0L V-6 4X2 F87A - EA less than D639401
4.0L V-6 4X4 F87A - FA less than D627480
NOTE: After the repair, the transmission may feel stiff, especially if the brass
blocking rings were replaced. This will go away after driving the
vehicle for several kilometers/miles, as the new blocking rings need
time to reseat against the gear cone.
Part Number Part Name
F2TZ-7124-AB Synchronizer Assembly (2.5L And 3.0L)
F2TZ-7124-CA Synchronizer Assembly (4.0L)
M5OD - BUZZING &/OR GRINDING DURING 2-3 SHIFT -1998 Ford Ranger
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Saturday, March 10th, 2012 AT 5:19 PM

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