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Overdrive or not to Overdrive? That is the question Overdrive or not to Overdrive? That is the question
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  #1  
Old 12-07-2005, 12:47 PM
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Join Date: Dec 2005
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Overdrive or not to Overdrive? That is the question
I got a 1997 F150. Recently I noticed that when I drive in overdrive there is a hard downshift 4th to 3rd (I believe). However, when I don't drive in overdrive it doesn't occur. What could be the problem? It's inconvenient to have to turn the overdrive off everytime I am ready to drive the truck.

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  #2  
Old 12-07-2005, 02:02 PM
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Join Date: Dec 2004
Location: Dover AFB DE / Harrisburg PA
Vehicle: 13 FULLsize ole' Ford rigs
Posts: 3,604
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Howdy and welcome!

You have a 4 speed tranny. Turning off OD locks out fourth gear, so it will never be able to shift from 4 to 3 if it cant get to 4th in the first place.

Post up the TRANS code on the door jam sticker. E is the E4OD, and U is the 4R70w. What is the milage on the truck, and when was the last fluid flush?

Adrianspeeder
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  #3  
Old 01-05-2006, 02:38 PM
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Join Date: Dec 2005
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E40d
Hey,

Long time no talk to...
the code is E4OD with 155,000 miles. I last got my fluids flushed about 60 days ago. Hope this helps you help me :-)
Last edited by mpr!; 01-05-2006 at 02:42 PM. Reason: mispelling
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  #4  
Old 02-08-2006, 03:55 PM
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Join Date: Dec 2005
Posts: 4
Hesitation in Acceleration
Also, help me understand why today I press on the gas and it resulted in a slight hesitation in it's acceleration....RPMs just completely dropped and then increased again.
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