Shifting hard sometimes

Reply Subscribe

Thread Tools

Search this Thread

May 23, 2006 | 10:43 PM

ketchup

Thread Starter

Junior User

Joined: Dec 2005

Posts: 76

Likes: 0

Shifting hard sometimes

2005 F150, SCrew, 5.4 with auto xmission. Sometimes after slowing, then speeding back up, the transmission will do a hard shift/pause. Today, I noticed on 2 separate occasions, I slowed to merge onto a street, and when I accelerated, there was a pause then it shifted hard, like a studder. Thats the first time since I've had it that it has done that-18k miles. No towing as of yet, no peeling out ect. Any suggestions??

May 24, 2006 | 06:24 AM

alant

New User

Joined: Oct 2004

Posts: 3

Likes: 0

Sorry, no suggestions. Only the information that mine has recently started doing the same thing at 12,000 miles. Please post info. if you find out what the problem is. Mine is sometimes very hard.

May 24, 2006 | 07:14 AM

ford9c

Senior User

Joined: Apr 2005

Posts: 364

Likes: 0

I have an 04 SCAB and its done that since it was new. Had the stealer check it out and got the usual response, thats normal.

May 24, 2006 | 01:18 PM

KevinM

Posting Guru

Joined: Jul 2004

Posts: 1,479

Likes: 4

You may need the ECM updates, whioh includes transmission logic, or TSB 06-8-2 1 2 shift hesitation - torque convertor clutch command state

May 24, 2006 | 09:36 PM

xtrm1stang

Senior User

Joined: Sep 2005

Posts: 202

Likes: 0

From: Florida

sounds like it may be normal, lets say you in 3rd gear with the converter locked up, when you slow slightly the converter will disengauge and the trans is not locked to the engine, then when you accel, the trans has to decide what to do, then react, which is downshift, have it reflashed, that may help shifting,

May 25, 2006 | 08:28 AM

onamission

New User

Joined: Jul 2005

Posts: 18

Likes: 0

It is "normal" I guess...probably a programming glitch. My '04 has done it since new and now has 93,000 miles and acts up the same as when new. At least it hasn't gotten any worse.