Go Back   Ford F150 Forum - Community of Ford Truck Fans > Ford F150 Forums > General F150 Discussion
Sign in using an external account
Register Forgot Password?


Reply
 
 
 
 
Thread Tools Search this Thread Display Modes
Old 08-28-2011, 04:09 PM   #1
Junior Member
 
Join Date: Aug 2011
Posts: 1
Mentioned: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Exclamation My transmission slips in overdrive

Hello everyone, I'm having some trouble with my transmission or so it seems, and your help/ advice will be greatly appreciated. When my truck is in fourth gear (overdrive) and cruising about 45 mph, then i push the pedal to accelerate, my truck will jerk, acting almost like i hit a pot hole. This started about a month ago, and has been getting worse. All other gears are fine, shift smooth and strong. Only in overdrive does this jerking happen, and only when i accelerate a little bit, (not enough to make it downshift) My fluid level is fine. I'm worried this may be my transmission crappin out on me. I have taken it to a shop, they could find nothing wrong. And no codes to indicate what is wrong. They said it sounds like a misfiring cylinder. But i am skeptical of this. Please help
Vince14 is offline   Reply With Quote
Old 08-28-2011, 08:29 PM   #2
Retired Aerospace
 
Kattumaram's Avatar
 
Join Date: Dec 2008
Location: Edgewater, Florida
Posts: 1,324
Mentioned: 0 Post(s)
Thanks: 0
Thanked 8 Times in 7 Posts
Feedback Score: 0 reviews
Default Best Guesses:

The MAF sensor may be going south....a long shot, but possible. That turned out to be the cause of an inexplicable hard lurch in my granddaughter's Ranger 4.0L.

Another remote possibility: Bad or mis-set MLP sensor on the tranny. Double check that the sensor body is not loose on its mounts, the connector to it is clean and secure and the neutral marks line up with the shift lever in neutral.
Kattumaram is offline   Reply With Quote
Old 08-29-2011, 03:22 AM   #3
Junior Member
 
Join Date: Dec 2009
Posts: 26
Mentioned: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Default

you're torque converter is getting worn. drive it till it dies then replace. my truck was doing the same thing. i had the tranny rebuilt, put a shift kit in it and new torque converter. $1600 (good deal) then drove it from california to michigan. with no problums. as a matter of fact, she will almost bark the tires gong into 2nd.

shift pattern: D.....2nd.....3rd.....4th.....5th.....6th

4th and 6th is torque converter lock up

everytime it hit 4th and 6th it would "chatter" RATATATAT!!

what yours is doing is when you give it some gas it will slip then...BAM! the clutch plates in the torque converter will catch. couse they are worndown.

do you want to know the reason why? on the freeway, everytime you let off the gas the dam torque converter will disengage. to "HELP" slow the truck down...well,
on
off
on
off
on
off
.....SMOKE!! THE CLUTCH PLATES!. ford and there good idea's

now the reason i had my tranny rebuilt along with a shift kit and new torque converter is couse the tranny rebuild kit comes with a delite kit. that delite kit keeps the torque converter from engaging and disengaging everytime you let off the peddle.

when i got my truck back from the mechanic, i got on the freeway, got up to 65 and let my foot off the gas. the truck didn't downshift like it did before. this tranny and torque converter should last a long time.

http://www.clickclickracing.com/foru...OCK-vs-NONLOCK
__________________
white 1998 f-150 4.6 xlt now @146k

Last edited by raz187; 08-29-2011 at 03:36 AM.
raz187 is offline   Reply With Quote
Old 09-06-2011, 12:38 AM   #4
Junior Member
 
Join Date: Jun 2008
Posts: 2
Mentioned: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Default

Vince, What did you find out? Was this a trans problem? Our truck is an 05 4x4 with the 5.4. My wife's daily driver, last week when I drove to dealer for service i noticed the same thing when going up a slight grade. Trans was in high gear, with load, at low rpm say 1,500, surges just like you described. If you put your foot in it and it kick downs, no problem. Dealer just did normal oil, fuel, air filter service and also did trans service and power flush. Did not seem to help. Truck only has 60K and has never hauled anything other than groceries. I first i thought it was a dirty fuel filter or bad plug or wire, so I never mentioned to dealer. After drive it more this weekend I think it feels like a trans OD problem.
occory is offline   Reply With Quote
Old 05-01-2013, 04:13 PM   #5
Junior Member
 
Join Date: May 2013
Posts: 2
Mentioned: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Default

My 2004 F-150 5.4L is doing the same thing. I've got about 150k miles on it now, but same symptoms. Low RPMs, in overdrive, slow acceleration makes it jerk like its slipping or something.

Doesn't seem to do it with Overdrive disengaged or when stepping on it to accelerate to pass for example.

It isn't one gear either, It will do it 30-40 mph or 50-60 mph too. Mostly noticeable cruising down the freeway and gently accelerating. I dropped it off at the dealership this morning, we'll see what they have to say.

I have a 3rd party warranty, so hopefully if its something major the warranty will pick it up.
Zapbbx is offline   Reply With Quote
Old 05-01-2013, 04:26 PM   #6
Senior Member
 
04 F150's Avatar
 
Join Date: Nov 2011
Posts: 1,200
Mentioned: 1 Post(s)
Thanked 39 Times in 31 Posts
Feedback Score: 0 reviews
Default

^ you might need new plugs brotha' mine jerked in OD at 45ish fresh plugs and all is good
04 F150 is offline   Reply With Quote
Old 05-02-2013, 05:52 PM   #7
Junior Member
 
Join Date: May 2013
Posts: 2
Mentioned: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Default Tensioner Guide broke apparently

Dealership says one of my Tensioner Guides broke (whatever that is) But they said when those break they like to replace them all. Total cost $2600.

Warranty company needs to go inspect it now apparently..
Zapbbx is offline   Reply With Quote
Old 05-02-2013, 05:55 PM   #8
Senior Member
 
Join Date: Dec 2012
Posts: 2,590
Mentioned: 5 Post(s)
Thanked 498 Times in 344 Posts
Feedback Score: 0 reviews
Default

Quote:
Originally Posted by Zapbbx View Post
Dealership says one of my Tensioner Guides broke (whatever that is) But they said when those break they like to replace them all. Total cost $2600.

Warranty company needs to go inspect it now apparently..
Holy crap!
packplantpath is offline   Reply With Quote
Old 05-02-2013, 05:55 PM
 
 
 
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Transmission slips when i turn corners and revs up ktmsx12532 General F150 Discussion 1 04-08-2011 01:09 PM
2001 overdrive transmission issues dbail3 Introductions 5 03-11-2011 10:31 AM
Transmission Slipping into Overdrive ralphdale 2004 - 2008 Ford F150 1 02-05-2011 08:25 PM
1990 f-150 AOD overdrive Transmission Zeke Smith 1987 - 1996 F150 3 08-25-2009 08:25 PM
(03) Transmission SLIPS & CHATTERS jjjohnny 1997 - 2003 Ford F150 4 04-03-2009 08:26 AM


Tags
overdrive problems, overdrive slipping, transmission problems, transmission slipping

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Join F150 Forum

 

The Mustang Source
All times are GMT -4. The time now is 05:34 PM.


Copyright 2006 - 20011 F150forum.com
This site is in no way affiliated with the Ford Motor Company.