Go Back   Ford F150 Forum - Community of Ford Truck Fans > Late Model F150s > 1997 - 2003 Ford F150
Sign in using an external account
Register Forgot Password?


Reply
 
 
 
 
Thread Tools Search this Thread Display Modes
Old 09-18-2012, 02:19 PM   #1
Member
 
Darkmark454's Avatar
 
Join Date: Jul 2012
Location: Temecula C.A.
Posts: 34
Mentioned: 0 Post(s)
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
Default

Hello. I have a 2002 f150 5.4 2wd. When ever I give it a little more gas like to pass someone or start going up a hill, the trans down shifts and there is a hard thunk. Like it just slams into hear. Also have it when it shifts from 3rd to 5th.I did a quick search on the forum but couldn't find a post quite lime my problem. Seems to just skip 4th completely. The trans has almost 160,000 miles on it. And it has been doing this for as long as I can remember. Also how can you tell what kind of trans you have. I bought the truck from my dad about two years ago and he has no idea what kind it has. Planning on changing the trans fluid soon and I want to make sure I get the right kind. Hopefully changing the fluid will help a little. My dad said he doesn't think the fluid has ever been changed. Also do you guys recommend adding anything to the fluid. Like trans slip stop or something. I forgot what it is called. Thanks.
Darkmark454 is offline   Reply With Quote
Old 09-18-2012, 03:36 PM   #2
Senior Member
 
Join Date: Sep 2011
Posts: 4,257
Mentioned: 33 Post(s)
Thanked 203 Times in 198 Posts
Feedback Score: 0 reviews
Default

You dont have a 5sp auto. You have 4 speed with a locking converter. Time to do trans fluid exchange. But if its over 100k miles, and has never had one done or hasnt had one done in 60k it may make the trans worse.
Carcrazygts2 is offline   Reply With Quote
Old 09-18-2012, 03:41 PM   #3
F150 Vendor
 
Autofair Truck Parts's Avatar
 
Join Date: Sep 2012
Posts: 554
Mentioned: 0 Post(s)
Thanks: 0
Thanked 12 Times in 11 Posts
Feedback Score: 0 reviews
Default

i had a 94' F150 4x4 that had a 2nd gear kick, its a ford thing. all of my buddys who had older ford like that, they kick.
Autofair Truck Parts is offline   Reply With Quote
Old 09-18-2012, 04:41 PM   #4
Senior Member
 
me1234's Avatar
 
Join Date: Jun 2012
Posts: 1,020
Mentioned: 0 Post(s)
Thanked 59 Times in 48 Posts
Feedback Score: 0 reviews
Default

My 2000 4.6 Liter w/ 60k started doing the hard shift(not the weird downshift though) when I hit the gas sometimes too. Im gonna get it serviced soon and Ill give u an update on what happens
me1234 is offline   Reply With Quote
Old 09-18-2012, 07:03 PM   #5
Senior Member
 
me1234's Avatar
 
Join Date: Jun 2012
Posts: 1,020
Mentioned: 0 Post(s)
Thanked 59 Times in 48 Posts
Feedback Score: 0 reviews
Default

Also it recently started doing this. It disnt always do it(Ive had the truck since 40k miles)
me1234 is offline   Reply With Quote
Old 09-19-2012, 05:59 PM   #6
Member
 
Darkmark454's Avatar
 
Join Date: Jul 2012
Location: Temecula C.A.
Posts: 34
Mentioned: 0 Post(s)
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
Default

Quote:
Originally Posted by me1234
My 2000 4.6 Liter w/ 60k started doing the hard shift(not the weird downshift though) when I hit the gas sometimes too. Im gonna get it serviced soon and Ill give u an update on what happens
Ok. Thanks a lot.
Darkmark454 is offline   Reply With Quote
Old 09-19-2012, 06:00 PM   #7
Member
 
Darkmark454's Avatar
 
Join Date: Jul 2012
Location: Temecula C.A.
Posts: 34
Mentioned: 0 Post(s)
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
Default

Quote:
Originally Posted by Carcrazygts2
You dont have a 5sp auto. You have 4 speed with a locking converter. Time to do trans fluid exchange. But if its over 100k miles, and has never had one done or hasnt had one done in 60k it may make the trans worse.
Why would changing the fluid make it worse. I have heard that draining the torque converter may result in damage. Is that what you are referring to. I was just planning on doing a pan drop.
Darkmark454 is offline   Reply With Quote
Old 09-19-2012, 07:40 PM   #8
Senior Member
 
ryno_rx8's Avatar
 
Join Date: Jul 2012
Posts: 257
Mentioned: 0 Post(s)
Thanked 4 Times in 4 Posts
Feedback Score: 0 reviews
Default

Is it inside the trans feeling or can you feel it in the floor board? Mine has something similar and its a toasted trans mount
ryno_rx8 is offline   Reply With Quote
Old 09-19-2012, 11:13 PM   #9
Member
 
Darkmark454's Avatar
 
Join Date: Jul 2012
Location: Temecula C.A.
Posts: 34
Mentioned: 0 Post(s)
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
Default

Quote:
Originally Posted by ryno_rx8
Is it inside the trans feeling or can you feel it in the floor board? Mine has something similar and its a toasted trans mount
Im not entirely sure where it is coming from. It could be in the floor board now that I think about it. The whole cab rattles from the severe thunk. I just assumed it was something in the tyranny. Is it relatively easy to spot a worn out mount. Never really looked at the transmission closely yet.

Last edited by Darkmark454; 09-19-2012 at 11:18 PM.
Darkmark454 is offline   Reply With Quote
Old 09-24-2012, 07:16 PM   #10
Junior Member
 
Join Date: Sep 2012
Posts: 2
Mentioned: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Question 2004 F150 Trans slipping & moving

My '04 F150 has always had a funny "slip" in the drive train. Seems like the rear differential - but it's not. Replaced the tranny @ 50K miles - under warranty- barely. Now the "slip" feels worse than before. Noticed the transmission & xfer case move up/down when you power brake it, and this caused a "clunk" type of noice while under power & when you back-off the throttle. Local Ford dealer says "it's all good". Really ??
Randog1978 is offline   Reply With Quote
Old 09-24-2012, 07:16 PM
 
 
 
Reply


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 10:06 AM.


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