Author Topic: FMX Issue  (Read 753 times)

69 GT350 Vert

  • Sr. Member
  • ****
    • View Profile
FMX Issue
« on: January 09, 2023, 08:43:56 AM »
In the past 6 months or so, my FMX doesn't want to downshift into first gear when engine/trans is cold.  I find the car starts out in 2nd or 3rd gear at stop signs when cold.  Anyone know what I can do to fix this?  Fluid and filter change?  Thanks.

Bill

  • SAAC Member
  • Hero Member
  • *
    • View Profile
Re: FMX Issue
« Reply #1 on: January 09, 2023, 10:19:49 AM »
In the past 6 months or so, my FMX doesn't want to downshift into first gear when engine/trans is cold.  I find the car starts out in 2nd or 3rd gear at stop signs when cold.  Anyone know what I can do to fix this?  Fluid and filter change?  Thanks.

Have you checked the fluid level "hot"?
When is the last time you changed the fluid and filter?
If not low, I'd start with the fluid and filter change and see how that goes.

Bill
Instead of being part of the problem, be part of a successful solution.
HOW TO IDENTIFY A FORUM TROLL
https://www.saacforum.com/index.php?topic=16401.0

crossboss

  • Hero Member
  • *****
  • ^My Current Project^
    • View Profile
Re: FMX Issue
« Reply #2 on: January 09, 2023, 11:29:15 AM »
Inside the trans where the shifter attaches, the large nut (inside) can be loose. This will cause the issues you describe. However, it is wise to take your car to a qualified transmission shop to be sure.
Past owned Shelby's:
1968 GT-350--Gold
1970 GT-500--#3129--Grabber Orange.
Current lifelong projects:
1969 Mustang Fastback/FOX chassis, 5 speed, 4 wheel discs, with a modern Can-Am 494 (Boss 429), Kaase heads, intake with a 1425 cfm 'B' Autolite Inline carb, ala Trans-Am style
1968/70 Olds 442 W-30

TOBKOB

  • SAAC Member
  • Hero Member
  • *
    • View Profile
Re: FMX Issue
« Reply #3 on: January 09, 2023, 12:23:15 PM »
sounds like the governor sticking.

TOB
1969 GT350 owned since 1970

crossboss

  • Hero Member
  • *****
  • ^My Current Project^
    • View Profile
Re: FMX Issue
« Reply #4 on: January 09, 2023, 12:50:27 PM »
'Usually' when the governor is sticking it won't go into gear until it is completely warmed up.
« Last Edit: January 09, 2023, 12:52:02 PM by crossboss »
Past owned Shelby's:
1968 GT-350--Gold
1970 GT-500--#3129--Grabber Orange.
Current lifelong projects:
1969 Mustang Fastback/FOX chassis, 5 speed, 4 wheel discs, with a modern Can-Am 494 (Boss 429), Kaase heads, intake with a 1425 cfm 'B' Autolite Inline carb, ala Trans-Am style
1968/70 Olds 442 W-30

FL SAAC

  • SAAC Member
  • Hero Member
  • *
    • View Profile
Re: FMX Issue
« Reply #5 on: January 09, 2023, 02:02:37 PM »
easy peasy take it to a honest knowledgeable transmission shop

you will save your most valuable asset "time" and continue to enjoy your vehicle once properly diagnosed and repaired by a professional

Living RENT FREE in your minds...

Home of the Hertz Musketeers 

A person without a sense of humor is like a wagon without springs.  It's jolted by every pebble on the road

I have all UNGOLD cars

I am certainly not a Shelby Expert

Life is short B happy

69 GT350 Vert

  • Sr. Member
  • ****
    • View Profile
Re: FMX Issue
« Reply #6 on: January 09, 2023, 05:36:04 PM »
I called the shop in Hanover, PA that rebuilt my FMX back in 2013.  He said it was the governor that is sticking.  I need to remove the governor and clean it out.  He thinks there is a removable governor inspection plate on the tailshaft housing to allow me to do this myself.  If not, then I have to take it to a tranny shop to remove the tailshaft housing to clean out the governor.