When running won't go into any gears

Tiny
DERRICKNCRYSTALPRICE
  • MEMBER
  • 1994 FORD F-150
  • 4.9L
  • 6 CYL
  • 4WD
  • MANUAL
  • 200,000 MILES
The truck has what has been called the "big Mazda" 4 speed with overdrive. Just replaced the shift fork assembly, worked fine for a couple of weeks, now it will shift into all gears fine not running, when running won't go into any gears, just makes a high pitched grinding sound. Could this be synchronizer rings? Any help will be greatly appreciated.
Friday, June 27th, 2014 AT 1:46 PM

4 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,192 POSTS
It sounds like a clutch problem. Have you checked the fluid in the clutch master cylinder? This sounds like the clutch disc is falling apart not allowing the clutch disc to spin "free" but to be sure let go over these videos and guide to help us fix the problem.

https://youtu.be/EpBMj5ZY_bo

and

https://youtu.be/JpzefqEeVGE

This guide can help as well

https://www.2carpros.com/articles/clutch-doesnt-work-sometimes-or-not-at-all

Please run down these guides and report back.

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Friday, June 27th, 2014 AT 8:49 PM
Tiny
DERRICKNCRYSTALPRICE
  • MEMBER
  • 3 POSTS
Yes I checked the fluid level and it looks to be normal. There's oil that leaks from the bellhousing, most likely from the rear main seal. But nothing else leaks that I can tell.
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Thursday, July 3rd, 2014 AT 7:00 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,192 POSTS
Either the slave cylinder or the clutch master cylinder must be bad.
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Thursday, July 3rd, 2014 AT 7:53 PM
Tiny
DERRICKNCRYSTALPRICE
  • MEMBER
  • 3 POSTS
That sucks! But thanks a lot for the help! It's definately appreciated!
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Thursday, July 3rd, 2014 AT 9:19 PM

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