Shift error
Member
Joined: Jul 2005
Posts: 63
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From: Sugar Land, TX
A little more info would help. What are you working on and what transmission type? The code is an indication that the PCM has recognized a slip or a no-shift concern during the 2-3 shift. Have you noticed any problems?
Senior Member
Joined: Dec 2004
Posts: 5,003
Likes: 27
From: Dover AFB DE / Harrisburg PA
What do you have?
Use this page to determine what tranny your running.
https://www.f150online.com/forums/sh...d.php?t=211867
Adrianspeeder
Use this page to determine what tranny your running.
https://www.f150online.com/forums/sh...d.php?t=211867
Adrianspeeder
Senior Member
Joined: Jun 2005
Posts: 2,805
Likes: 2
From: NEVADA
It's probably a 4R70W. I posted about the same problem but 3 - 4 shift error code ( 783? ).
I decided to just let it go until I had to get a new one, but it really isn't getting any worse in a hurry , so maybe I could repair it ....... solenoid or servo or ?
Wrong code - it was 738.
I decided to just let it go until I had to get a new one, but it really isn't getting any worse in a hurry , so maybe I could repair it ....... solenoid or servo or ?
Wrong code - it was 738.
Last edited by ONELOWF; Nov 5, 2005 at 10:31 PM. Reason: incorrect
Senior Member
Joined: Dec 2004
Posts: 5,003
Likes: 27
From: Dover AFB DE / Harrisburg PA
Originally Posted by Rednek87
My truck is a 98 f150 4.6 with auto trans i think its a 4r100. I have noticed that it misses shifts every now and then and sometimes shifts hard. Other than that no problems.
Rednek
Rednek
Look at my above link to determine what you have by the door sticker codes.
Adrianspeeder
Senior Member
Joined: Oct 2003
Posts: 549
Likes: 1
From: Arizona
Originally Posted by Rednek87
My truck is a 98 f150 4.6 with auto trans i think its a 4r100.
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Member
Joined: Jul 2005
Posts: 63
Likes: 0
From: Sugar Land, TX
The most likely thing that would cause a 2-3 shift error on a 98 4R70W would be the 2-3 accumulator piston, located under the valve body. The early model bonded pistons were prone to failure, so Ford revised the piston , I think in late 1998.
Member
Joined: Jul 2005
Posts: 63
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From: Sugar Land, TX
[QUOTE=Rednek87]How hard would the 2-3 accumulator piston be to get to? Im planning on fixing it this week and just wanting to know what to expect.
It can be a pretty messy job, but it's not that hard with the right tools. You need an inch-pound torque wrench to install the valve body and a container that holds at least three gallons of trans fluid. When you remove the pan about 4 quarts will drain out, but when you drop the valve body the remaining fluid in the tranmission will drain. You can drain the torque convertor prior to dropping the valve body to keep the trans fluid from making a big mess. The 2-3 accumulator is readily accessable once the valve body is removed.
Keep in mind you may have some other concern causing the problem though. You might want to have it checked out by a professional.
It can be a pretty messy job, but it's not that hard with the right tools. You need an inch-pound torque wrench to install the valve body and a container that holds at least three gallons of trans fluid. When you remove the pan about 4 quarts will drain out, but when you drop the valve body the remaining fluid in the tranmission will drain. You can drain the torque convertor prior to dropping the valve body to keep the trans fluid from making a big mess. The 2-3 accumulator is readily accessable once the valve body is removed.
Keep in mind you may have some other concern causing the problem though. You might want to have it checked out by a professional.
