Transmission clank
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Junior User
Joined: Sep 2007
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From: Indianapolis
Transmission clank
I have an 2011 6.7 that has a h&s tuner. Lately my transmission seems to be confused about what gear it should be in when I'm driving about 45mph. It will sometime downshift hard. Has anyone else experienced this? I have a early build 2011 and heard that it could be a solenoid problem with the transmission. Thanks for the help
FTE Leadership Emeritus
Joined: May 2004
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From: Melbourne, Aus
Is it when your trans fluid is warm?
Mine occasionally does that when the transmission fluid isn't warm and I'm very light on the throttle. Its always done it with H&S's transmission tuning however.
Mine occasionally does that when the transmission fluid isn't warm and I'm very light on the throttle. Its always done it with H&S's transmission tuning however.
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Junior User
Joined: Sep 2007
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From: Indianapolis
It does do it then. It happens when I'm driving about 50mph in 6th gear and slowly ease out of the throttle. I called H&S and the told me to do an update on the software. I had also heard it could be a transmission solenoid.
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Junior User
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From: Indianapolis
I've never noticed any delay. I have not gotten the solenoid replaced. Maybe if my dealer is tuner friendly I can get them to look at it. It doesn't do it all the tome
Lead Driver
Joined: Dec 2013
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That was the problem with mine, it would be bad and then it was sense I was going to the dealer and it would quit doing it. Must be the same damn GPS sensor that knows when I am getting ready to pull into my driveway so it starts a regen.
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Crystal
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Junior User
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From: Indianapolis
Crystal,
My truck has 49,000 miles. Do you know the TSB?
Thanks
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TSB 11-7-10
07/07/11
6.7L WITH 6R140 TRANSMISSION - 2-3 SHIFT FLARE
AND/OR MIL ON WITH DTC P0733 AND/OR DELAYED
REVERSE ENGAGEMENT - BUILT ON OR BEFORE
4/11/2011
FORD:
2011 F-Super Duty
ISSUE
Some 2011 F-Super Duty vehicles equipped with 6.7L engines and 6R140 transmission may exhibit a 2-3 shift flare and/or malfunction indicator light (MIL) on with diagnostic trouble code (DTC) P0733 and/or delayed reverse engagement, with a build date on or before 4/11/2011. Symptoms may be more evident or seem worse after an extended soak.
ACTION
Follow the Service Procedure steps to correct the condition.
SERVICE PROCEDURE
1. Inspect vehicle build date.
a. If vehicle build date is on or before 11/19/2010, proceed to Step 2
b. If vehicle build date is between 11/20/2010 and 4/11/2011, solenoid replacement is not necessary, proceed to Step 3.
2. Replace the three (3) normally high solenoids [...]
07/07/11
6.7L WITH 6R140 TRANSMISSION - 2-3 SHIFT FLARE
AND/OR MIL ON WITH DTC P0733 AND/OR DELAYED
REVERSE ENGAGEMENT - BUILT ON OR BEFORE
4/11/2011
FORD:
2011 F-Super Duty
ISSUE
Some 2011 F-Super Duty vehicles equipped with 6.7L engines and 6R140 transmission may exhibit a 2-3 shift flare and/or malfunction indicator light (MIL) on with diagnostic trouble code (DTC) P0733 and/or delayed reverse engagement, with a build date on or before 4/11/2011. Symptoms may be more evident or seem worse after an extended soak.
ACTION
Follow the Service Procedure steps to correct the condition.
SERVICE PROCEDURE
1. Inspect vehicle build date.
a. If vehicle build date is on or before 11/19/2010, proceed to Step 2
b. If vehicle build date is between 11/20/2010 and 4/11/2011, solenoid replacement is not necessary, proceed to Step 3.
2. Replace the three (3) normally high solenoids [...]
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