1971 Ford F100 shifting problems - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
Ford Forum Ford Forum

» Auto Insurance
» Featured Product
ยป Wheel & Tire Center

Go Back   Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > Fordforums Community > USENET NewsGroups > alt.trucks.ford
Register Home Forum Active Topics Photo Gallery Auto Loans Garage Mark Forums Read Auto Escrow

FordForums.com is the premier Ford Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 10-13-2005, 00:01   #1 (permalink)
poppa1013
Guest
 
Posts: n/a
1971 Ford F100 shifting problems


I have a 1971 Ford F100 with a 1975 302 V8 & c-4 auto trans.Recently it started shifting like I have it to the floor all the time.It winds out & shifts hard even when I barely step on the gas.Give me some ideas what the problem might be.Could it be the vacuum modulator?


--
poppa1013

------------------------------------------------------------------------
View this thread: http://www.carstalk.net/viewtopic-350181.html

Send from http://www.carstalk.net

  Reply With Quote
Sponsored Links
Advertisement
 
Old 10-13-2005, 03:01   #2 (permalink)
Razorblade
Guest
 
Posts: n/a
Re: 1971 Ford F100 shifting problems

Check your vaccum modulator but I would also check the kick-down arm
linkage. Sounds like it is stuck in the full-throttle position which would
cause it to shift late and hard.

Razor


"poppa1013" <poppa1013.1wtus1@no-mx.carstalk.net> wrote in message
news:poppa1013.1wtus1@no-mx.carstalk.net...
>
> I have a 1971 Ford F100 with a 1975 302 V8 & c-4 auto trans.Recently it
> started shifting like I have it to the floor all the time.It winds out &
> shifts hard even when I barely step on the gas.Give me some ideas what the
> problem might be.Could it be the vacuum modulator?
>
>
> --
> poppa1013
>
> ------------------------------------------------------------------------
> View this thread: http://www.carstalk.net/viewtopic-350181.html
>
> Send from http://www.carstalk.net
>



  Reply With Quote
Old 10-13-2005, 07:01   #3 (permalink)
lugnut
Guest
 
Posts: n/a
Re: 1971 Ford F100 shifting problems

On Thu, 13 Oct 2005 03:30:10 +0200, poppa1013
<poppa1013.1wtus1@no-mx.carstalk.net> wrote:

>
>I have a 1971 Ford F100 with a 1975 302 V8 & c-4 auto trans.Recently it started shifting like I have it to the floor all the time.It winds out & shifts hard even when I barely step on the gas.Give me some ideas what the problem might be.Could it be the vacuum modulator?



Is it ate and hard on both shifts or just one. If on both,
I would suspect the kickdown linkage. If the 1-2 shift
only, I would look for a vacuum problem to the modulator or
a bad modulator.

Lugnut
  Reply With Quote
Old 10-13-2005, 13:01   #4 (permalink)
Utopian Drifter
Guest
 
Posts: n/a
Re: 1971 Ford F100 shifting problems

Pull the vacuum line off of the modulator. If it is full of transmission
fluid you probably found your problem. You might have to replace the
vacuum hose as well. The fluid will make it really soft so it will
collapse on itself even after you put a new modulator on.

Tim


poppa1013 wrote:
> I have a 1971 Ford F100 with a 1975 302 V8 & c-4 auto trans.Recently it started shifting like I have it to the floor all the time.It winds out & shifts hard even when I barely step on the gas.Give me some ideas what the problem might be.Could it be the vacuum modulator?
>
>

  Reply With Quote
Sponsored Links
Advertisement
 
Reply

  Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > Fordforums Community > USENET NewsGroups > alt.trucks.ford



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
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 Off
[IMG] code is Off
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Powered by vBadvanced CMPS v3.2.2

All times are GMT -7. The time now is 07:21.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.6.0
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.