97 ford F-150 no reverse sometimes - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Transmission - Rearend
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 02-08-2012, 05:19 PM
Registered User
 
Last photo:
Join Date: Jun 2009
Location: alabama
Posts: 192
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
97 ford F-150 no reverse sometimes

i have a 1997 ford F-150 sometimes i can get in it reverse works and others its nothing at all it never seems like its slipping either.... iv replaced the filter no luck still the same problem i was thinking maybe the MLPS is bad but it does not show any codes for it.... any thoughts or is it time for a new tranny dont wanna spend $80 on a part then need a transmission..

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 02-08-2012, 05:49 PM
tnsmith10's Avatar
when will it rain???
 
Last photo:
Join Date: Jul 2003
Location: where its very dry and dusty
Age: 43
Posts: 1,297
Wiki Edits: 0

Thanks: 0
Thanked 2 Times in 2 Posts
Quote:
Originally Posted by rtyauch301
i have a 1997 ford F-150 sometimes i can get in it reverse works and others its nothing at all it never seems like its slipping either.... iv replaced the filter no luck still the same problem i was thinking maybe the MLPS is bad but it does not show any codes for it.... any thoughts or is it time for a new tranny dont wanna spend $80 on a part then need a transmission..
how many miles are on the truck? does it matter if its hot or cold?
even with a bad mlps although they dont fail very often, the trans should still engage in forward gears.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 02-08-2012, 05:56 PM
Registered User
 
Last photo:
Join Date: Jun 2009
Location: alabama
Posts: 192
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
87K.. doesn't matter like it stopped working a week ago changed the filter all was fine then tonight i went to go to walmart and it didn't work when i got their thats 22 miles didnt work when i came out. it worked at the gas station but not at the parts store and worked when i got home
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 02-08-2012, 06:00 PM
Registered User
 
Last photo:
Join Date: Jun 2009
Location: alabama
Posts: 192
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
also when i changed the filter the fluid was pretty black but no metal or anything i suspect it was the original filter as the plastic plug from the factory was still in the pan... the only reason i was thinking the switch was its only seemed to be doing it when it rains thought maybe it was getting moisture in it...
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 02-09-2012, 06:21 AM
tnsmith10's Avatar
when will it rain???
 
Last photo:
Join Date: Jul 2003
Location: where its very dry and dusty
Age: 43
Posts: 1,297
Wiki Edits: 0

Thanks: 0
Thanked 2 Times in 2 Posts
Quote:
Originally Posted by rtyauch301
also when i changed the filter the fluid was pretty black but no metal or anything i suspect it was the original filter as the plastic plug from the factory was still in the pan... the only reason i was thinking the switch was its only seemed to be doing it when it rains thought maybe it was getting moisture in it...
the easiest way to verify the mlps being bad is with a scan tool that has a live data stream. it will have the range positions in there and show what gear is selected.
usually with a bad mlps, shifting is erratic on upshifts.
i did some checking on whats applied when the trans is in drive and what could cause the problem and the 1 thing that caught my attention is the low roller clutch. up till 97 the trans had a roller type clutch that was known for failure. in 98, ford changed it to a mechanical diode type clutch to fix the problem. this usually gets updated on rebuild.
with the fluid being black as you describe, i would be more looking at a mechanical failure internally rather than an electronic problem.
i suspect the problem will only get worse if you continue try to drive it.
Reply With Quote Quick reply to this message

Recent Transmission - Rearend posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
T-400 Reverse problems, slips & then no reverse Kidplunge Transmission - Rearend 1 03-14-2011 08:17 PM
Ford fast shift from reverse to low tsracer Transmission - Rearend 2 05-22-2010 07:10 PM
Ford C-4 w/ reverse valve body RSM Transmission - Rearend 5 12-17-2009 09:08 PM
No Reverse..ford truck 5 speed transmition MAYNARDTRUCKIN Transmission - Rearend 1 07-17-2007 07:17 PM
ford aod reverse shift snoman Transmission - Rearend 2 02-17-2004 06:38 PM


All times are GMT -6. The time now is 04:50 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.