Notices
1973 - 1979 F-100 & Larger F-Series Trucks Discuss the Dentsides Ford Truck
Sponsored by:
Sponsored by: Moser

tranny problem

Thread Tools
 
Search this Thread
 
Old Aug 11, 2008 | 11:09 AM
  #1  
pipman76's Avatar
pipman76
Thread Starter
|
Senior User
Joined: Jan 2008
Posts: 301
Likes: 0
tranny problem

my 74 f-100 has a fmx tranny that shifts out good but 2 out of 3 times when i come to a stop and start to accelerate it will not go at all it hesitates a few seconds it doesnt slip just acts like its stuck any suggestions of the problem

if it need rebuilding do u guys think it worth building or do i need a c-6 its behind a 351 w ,ive heard they are alot tougher than c-4s but not as good as c-6
 
Reply
Old Aug 11, 2008 | 11:10 AM
  #2  
hairyboxnoogle's Avatar
hairyboxnoogle
Lead Driver
Joined: Apr 2008
Posts: 6,938
Likes: 13
Could just be your converter... are you sure its not trying to start out in 2nd?
 
Reply
Old Aug 11, 2008 | 12:39 PM
  #3  
1985 Ford F-150's Avatar
1985 Ford F-150
Elder User
Joined: Mar 2007
Posts: 592
Likes: 1
From: Tooele, UT
Hows the fluid level. The one I have in a parts truck lost so much you couldnt put it into any gear.
 
Reply
Old Aug 11, 2008 | 01:23 PM
  #4  
pipman76's Avatar
pipman76
Thread Starter
|
Senior User
Joined: Jan 2008
Posts: 301
Likes: 0
it doesnt move at all ,u can hold the accelerator down slightly and and it revs up and eventually goes in gear
 
Reply
Old Aug 11, 2008 | 07:03 PM
  #5  
NumberDummy's Avatar
NumberDummy
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 783
From: Simi Valley, CA
Club FTE Gold Member
Originally Posted by pipman76
my 74 f-100 has a fmx tranny that shifts out good but 2 out of 3 times when i come to a stop and start to accelerate it will not go at all it hesitates a few seconds it doesnt slip just acts like its stuck any suggestions of the problem.
If that tranny is original, it's not an FMX.

Only the 1973/77 F350's with 300 I-6's came with the FMX transmission in the 1970's.

If it's a 240/300 I-6 or a 302...it's a C4. If it's a 360/390/460 = C6.
 
Reply
Old Aug 11, 2008 | 07:57 PM
  #6  
pipman76's Avatar
pipman76
Thread Starter
|
Senior User
Joined: Jan 2008
Posts: 301
Likes: 0
its a fmx and it didnt come with that tranny the engine and tranny came out of a later 70s ford thunderbird
 
Reply
Old Aug 12, 2008 | 04:24 AM
  #7  
65f100_352's Avatar
65f100_352
More Turbo
15 Year Member
Photogenic
Joined: Apr 2007
Posts: 572
Likes: 3
Transmission modulator. My 78 does the same thing sometimes. When it acts up, I put it in low hole and then accelerates like normal.
 
Reply




All times are GMT -5. The time now is 04:02 AM.

story-0
Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Slideshow: Ford's bizarre fishing-themed Explorer concept has resurfaced after spending decades largely forgotten.

By Verdad Gallardo | 2026-05-12 18:07:46


VIEW MORE
story-1
10 Best Ford Truck Engines We Miss the Most!

Slideshow: The 10 best Ford truck engines we miss the most.

By Joe Kucinski | 2026-05-12 13:09:47


VIEW MORE
story-2
2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Slideshow: first look at the 810 hp 2026 Shelby F-150 Off-Road!

By Brett Foote | 2026-05-12 12:50:07


VIEW MORE
story-3
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Slideshow: Everything You Need to Know about the 2027 Super Duty Carhartt Package!

By Michael S. Palmer | 2026-05-07 17:51:06


VIEW MORE
story-4
10 Most Surprising 2026 Ford Truck Features!

Slideshow: 10 most surprising Ford truck options/features in 2026.

By Joe Kucinski | 2026-05-05 11:17:22


VIEW MORE
story-5
Top 10 Ford Trucks Coming to Mecum Indy 2026

Slideshow: Here are the top 10 Fords coming to Mecum Indy 2026.

By Brett Foote | 2026-05-04 13:49:49


VIEW MORE
story-6
5 Best / 5 Worst Ford Truck Wheels of All Time

Slideshow: The 5 best and 5 worst Ford truck wheels of all time

By Joe Kucinski | 2026-04-29 16:49:01


VIEW MORE
story-7
Ford Super Duty: 5 Things Owners LOVE, 5 Things They LOATHE!

Slideshow: Ranking the 5 things owners love about their Super Duty and 5 things they don't

By Joe Kucinski | 2026-04-29 16:36:49


VIEW MORE
story-8
Every 2026 Ford Truck Engine RANKED from WORST to FIRST!

Slideshow: Ranking all 12 Ford truck engines available in 2026.

By Michael S. Palmer | 2026-04-22 13:32:20


VIEW MORE
story-9
The Best F-150 Deal of Every Trim Level (XL through Raptor)

Slideshow: The best Ford F-150 deal for every trim level (XL through Raptor)

By Joe Kucinski | 2026-04-21 15:59:01


VIEW MORE