Experiencing a Transmission Shudder?? Step Inside
06-16-2011, 09:22 PM
#1
2011 FX4 Screw
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Experiencing a Transmission Shudder?? Step Inside
Ford just came out with this today!
2011 F-150 WITH THE 3.5L OR 5.0L ENGINE AND 6R80 TRANSMISSION BUILT ON OR BETWEEN 2/1/2011 TO 4/1/2011 SHUDDER DURING 2-1 DOWNSHIFT 5-7MPH (8-11KPH)
SOME APPLICATIONS OF THE 2011 F-150 VEHICLES WITH THE 3.5L OR 5.0L ENGINE BUILT ON OR BETWEEN 02/1/2011 UNTIL 4/1/2011 MAY EXHIBIT A SHUDDER DURING A 2-1 COASTING DOWNSHIFT TYPICALLY FOUND AT SPEEDS OF 5-7 MPH (8-11KPH). USE IDS TO MONITOR FOLLOWING PIDS, IN_GEAR MODE,GEAR_RAT, VSS TO VERIFY IT IS THE 2-1 DOWNSHIFT. IF THE SHUDDER IS ONLY PRESENT ON THE 2-1 COASTING DOWNSHIFT REPLACE THE C-CLUTCH (INTERMEDIATE) FRICTION PLATES FOLLOWING WSM SECTION 307-01 AND USE AVAILABLE SERVICE LABOR TIME STANDARD OPERATIONS. IF THE SHUDDER OCCURS AT ANY OTHER VEHICLE SPEED OR GEAR CHANGE EVENT DISREGUARD THIS PROCEDURE AND FOLLOW NORMAL WSM SECTION 307-01 DIAGNOSIS BY SYMPTOM FOR FURTHER DIAGNOSTICS
2011 F-150 WITH THE 3.5L OR 5.0L ENGINE AND 6R80 TRANSMISSION BUILT ON OR BETWEEN 2/1/2011 TO 4/1/2011 SHUDDER DURING 2-1 DOWNSHIFT 5-7MPH (8-11KPH) SOME APPLICATIONS OF THE 2011 F-150 VEHICLES WITH THE 3.5L OR 5.0L ENGINE BUILT ON OR BETWEEN 02/1/2011 UNTIL 4/1/2011 MAY EXHIBIT A SHUDDER DURING A 2-1 COASTING DOWNSHIFT TYPICALLY FOUND AT SPEEDS OF 5-7 MPH (8-11KPH). USE IDS TO MONITOR FOLLOWING PIDS, IN_GEAR MODE,GEAR_RAT, VSS TO VERIFY IT IS THE 2-1 DOWNSHIFT. IF THE SHUDDER IS ONLY PRESENT ON THE 2-1 COASTING DOWNSHIFT REPLACE THE C-CLUTCH (INTERMEDIATE) FRICTION PLATES FOLLOWING WSM SECTION 307-01 AND USE AVAILABLE SERVICE LABOR TIME STANDARD OPERATIONS. IF THE SHUDDER OCCURS AT ANY OTHER VEHICLE SPEED OR GEAR CHANGE EVENT DISREGUARD THIS PROCEDURE AND FOLLOW NORMAL WSM SECTION 307-01 DIAGNOSIS BY SYMPTOM FOR FURTHER DIAGNOSTICS
06-16-2011, 09:53 PM
#3
Senior Member
Ford just came out with this today!
2011 F-150 WITH THE 3.5L OR 5.0L ENGINE AND 6R80 TRANSMISSION BUILT ON OR BETWEEN 2/1/2011 TO 4/1/2011 SHUDDER DURING 2-1 DOWNSHIFT 5-7MPH (8-11KPH)
SOME APPLICATIONS OF THE 2011 F-150 VEHICLES WITH THE 3.5L OR 5.0L ENGINE BUILT ON OR BETWEEN 02/1/2011 UNTIL 4/1/2011 MAY EXHIBIT A SHUDDER DURING A 2-1 COASTING DOWNSHIFT TYPICALLY FOUND AT SPEEDS OF 5-7 MPH (8-11KPH). USE IDS TO MONITOR FOLLOWING PIDS, IN_GEAR MODE,GEAR_RAT, VSS TO VERIFY IT IS THE 2-1 DOWNSHIFT. IF THE SHUDDER IS ONLY PRESENT ON THE 2-1 COASTING DOWNSHIFT REPLACE THE C-CLUTCH (INTERMEDIATE) FRICTION PLATES FOLLOWING WSM SECTION 307-01 AND USE AVAILABLE SERVICE LABOR TIME STANDARD OPERATIONS. IF THE SHUDDER OCCURS AT ANY OTHER VEHICLE SPEED OR GEAR CHANGE EVENT DISREGUARD THIS PROCEDURE AND FOLLOW NORMAL WSM SECTION 307-01 DIAGNOSIS BY SYMPTOM FOR FURTHER DIAGNOSTICS
2011 F-150 WITH THE 3.5L OR 5.0L ENGINE AND 6R80 TRANSMISSION BUILT ON OR BETWEEN 2/1/2011 TO 4/1/2011 SHUDDER DURING 2-1 DOWNSHIFT 5-7MPH (8-11KPH) SOME APPLICATIONS OF THE 2011 F-150 VEHICLES WITH THE 3.5L OR 5.0L ENGINE BUILT ON OR BETWEEN 02/1/2011 UNTIL 4/1/2011 MAY EXHIBIT A SHUDDER DURING A 2-1 COASTING DOWNSHIFT TYPICALLY FOUND AT SPEEDS OF 5-7 MPH (8-11KPH). USE IDS TO MONITOR FOLLOWING PIDS, IN_GEAR MODE,GEAR_RAT, VSS TO VERIFY IT IS THE 2-1 DOWNSHIFT. IF THE SHUDDER IS ONLY PRESENT ON THE 2-1 COASTING DOWNSHIFT REPLACE THE C-CLUTCH (INTERMEDIATE) FRICTION PLATES FOLLOWING WSM SECTION 307-01 AND USE AVAILABLE SERVICE LABOR TIME STANDARD OPERATIONS. IF THE SHUDDER OCCURS AT ANY OTHER VEHICLE SPEED OR GEAR CHANGE EVENT DISREGUARD THIS PROCEDURE AND FOLLOW NORMAL WSM SECTION 307-01 DIAGNOSIS BY SYMPTOM FOR FURTHER DIAGNOSTICS
06-16-2011, 10:01 PM
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2011 F-150 3.5L ECOBOOST - INTERMITTENT MISCELLANEOUS DTCS FOR UEGO SENSOR / TRANSMISSION
SOME 2011 F-150 VEHICLES EQUIPPED WITH A 3.5L ECOBOOST ENGINE MAY EXHIBIT AN INTERMITTENT MIL LIGHT WITH MISCELLANEOUS HEATED OXYGEN SENSOR BANK 1 OR TRANSMISSION DTCS, A LACK OF POWER COMPLAINT, OR SHIFT QUALITY ISSUES. INSPECT THE ENGINE HARNESS TAKEOUT FOR THE BANK 1 UEGO FOR A CHAFE CAUSED BY THE TRANSMISSION CASTING. IF WIRING CHAFE IS NOTED ON THE ENGINE HARNESS, REPAIR THE HARNESS AS PER ONLINE WIRING DIAGRAM (EVTM) SECTION 5 PAGES 5-8 AND WRAP THE HARNESS WITH CONVOLUTE. IF NO WIRING CHAFE IS PRESENT, PROCEED WITH NORMAL PC/ED OR WSM DIAGNOSTICS FOR THE CODES OR SYMPTOMS PRESENT.
06-16-2011, 11:38 PM
#6
I experience the 2 to 1 downshift harshness.
Feels like a misplaced downshift, not quite a clunk, but not smooth.
I really wasn't worried about it.
Still not worried about it, but will talk to my service guy.
Feels like a misplaced downshift, not quite a clunk, but not smooth.
I really wasn't worried about it.
Still not worried about it, but will talk to my service guy.
06-19-2011, 12:06 PM
#7
Heres Another TSB on Ecoboost engines also just came out today.
2011 F-150 3.5L ECOBOOST - INTERMITTENT MISCELLANEOUS DTCS FOR UEGO SENSOR / TRANSMISSION
SOME 2011 F-150 VEHICLES EQUIPPED WITH A 3.5L ECOBOOST ENGINE MAY EXHIBIT AN INTERMITTENT MIL LIGHT WITH MISCELLANEOUS HEATED OXYGEN SENSOR BANK 1 OR TRANSMISSION DTCS, A LACK OF POWER COMPLAINT, OR SHIFT QUALITY ISSUES. INSPECT THE ENGINE HARNESS TAKEOUT FOR THE BANK 1 UEGO FOR A CHAFE CAUSED BY THE TRANSMISSION CASTING. IF WIRING CHAFE IS NOTED ON THE ENGINE HARNESS, REPAIR THE HARNESS AS PER ONLINE WIRING DIAGRAM (EVTM) SECTION 5 PAGES 5-8 AND WRAP THE HARNESS WITH CONVOLUTE. IF NO WIRING CHAFE IS PRESENT, PROCEED WITH NORMAL PC/ED OR WSM DIAGNOSTICS FOR THE CODES OR SYMPTOMS PRESENT.
2011 F-150 3.5L ECOBOOST - INTERMITTENT MISCELLANEOUS DTCS FOR UEGO SENSOR / TRANSMISSION
SOME 2011 F-150 VEHICLES EQUIPPED WITH A 3.5L ECOBOOST ENGINE MAY EXHIBIT AN INTERMITTENT MIL LIGHT WITH MISCELLANEOUS HEATED OXYGEN SENSOR BANK 1 OR TRANSMISSION DTCS, A LACK OF POWER COMPLAINT, OR SHIFT QUALITY ISSUES. INSPECT THE ENGINE HARNESS TAKEOUT FOR THE BANK 1 UEGO FOR A CHAFE CAUSED BY THE TRANSMISSION CASTING. IF WIRING CHAFE IS NOTED ON THE ENGINE HARNESS, REPAIR THE HARNESS AS PER ONLINE WIRING DIAGRAM (EVTM) SECTION 5 PAGES 5-8 AND WRAP THE HARNESS WITH CONVOLUTE. IF NO WIRING CHAFE IS PRESENT, PROCEED WITH NORMAL PC/ED OR WSM DIAGNOSTICS FOR THE CODES OR SYMPTOMS PRESENT.
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06-19-2011, 05:46 PM
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I feel the same. I'm not sure I want to lose the truck for a day or whatever, have the tranny cracked open, for a fix to something that hasn't been shown to hurt anything. Sometime the fix can introduce other problems in the future, either on all fixed vehicles, or on specific ones (where a mechanic did a boo-boo while doing the fix). I think I'll wait a while and see how things shake out.
