Overdrive ?
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Senior User
Joined: Aug 2010
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Overdrive ?
hi guys if im not mistaken when i push the button on my shifter. so over drive is off. Shouldnt the truck down**** or slowdown and maintain the rpms instead of drop to the idle rpm?
i drove a 92 7.3 diesel before this truck.. 2002 F250 5.4. and when i pushed the button the rpms would drop then kick back up to where iever i left off. but when i push the button on the newer truck it just drops and doesnt return
whats the problem?
i drove a 92 7.3 diesel before this truck.. 2002 F250 5.4. and when i pushed the button the rpms would drop then kick back up to where iever i left off. but when i push the button on the newer truck it just drops and doesnt return
whats the problem?
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Senior User
Joined: Aug 2010
Posts: 270
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i mean when i take my foot off the pedal the rpms fall.. i thought the point of O/D was to help slow down your truck. when i push the button so the shifter say O/d off and i take my foot off the pedal the rpms fall.. arent they supposed to stay where you left off and slow you down. almost like a Jake brake
Senior User
Joined: Apr 2009
Posts: 444
Likes: 2
From: Franktown, CO
My appologies if this is too simple and you really do have a problem. Sounds like you're using the button backwards. For fourth gear to be available the light should be off. The light off should be normal driving mode.
Postmaster
Joined: Oct 2006
Posts: 4,171
Likes: 12
From: SE Texas
hi guys if im not mistaken when i push the button on my shifter. so over drive is off. Shouldnt the truck down**** or slowdown and maintain the rpms instead of drop to the idle rpm?
i drove a 92 7.3 diesel before this truck.. 2002 F250 5.4. and when i pushed the button the rpms would drop then kick back up to where iever i left off. but when i push the button on the newer truck it just drops and doesnt return
whats the problem?
i drove a 92 7.3 diesel before this truck.. 2002 F250 5.4. and when i pushed the button the rpms would drop then kick back up to where iever i left off. but when i push the button on the newer truck it just drops and doesnt return
whats the problem?
JL
Cargo Master
Joined: Mar 2006
Posts: 2,502
Likes: 2
From: Bend Oregon
I have to argue that, the torque converter will not unlock until you tap the brake or reduce speed to below 35MPH...
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Postmaster
Joined: Oct 2006
Posts: 4,171
Likes: 12
From: SE Texas
"Throttle Position to Open Converter at Closed Throttle" = 8 tp counts.
If you remove your foot from the throttle to a TP count of 8 or less, the converter WILL UNLOCK NO MATTER WHAT THE MPH OF THE LOCKUP SCHEDULE IS. It will then relock after the "Time Delay To Relock Converter" expires.
Torque converter lockup and trans operation are a pet peeve of mine, and I have spent countless hours tweaking and adjusting to make my trans and torque converter behave in the manner that I want them to.
JL
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