1994-2004 V-8 GT, GTS, Bullitt, Mach 1, and Cobra

1994 GT 5.0 Automatic Transmission won't shift past 2nd gear

Thread Tools
 
Search this Thread
 
Old 7/8/13, 04:37 PM
  #1  
Member
Thread Starter
 
94 5.0~HO's Avatar
 
Join Date: July 8, 2013
Location: Middletown, CA
Posts: 5
Likes: 0
Received 0 Likes on 0 Posts
1994 GT 5.0 Automatic Transmission won't shift past 2nd gear

I have a 1994 Mustang GT 5.0 HO stock, automatic transmission.

I just replaced the fuel pump and filter,and got the car driving like it should. Then I parked it for about an hour, had to go somewhere and when I left, it started normally, and went into drive just fine. It was accelerating normally until about 25-35 mph. It won't shift past 2nd. The RPM's just keep getting to about 4500..

I'm so lost please help me...
Old 7/8/13, 08:32 PM
  #2  
V6 Member
 
91notchback's Avatar
 
Join Date: February 21, 2012
Posts: 79
Likes: 0
Received 0 Likes on 0 Posts
Can you shift it out manually? If so: maybe a vacuum modulator. If not, does it slip?
Old 7/8/13, 08:34 PM
  #3  
Member
Thread Starter
 
94 5.0~HO's Avatar
 
Join Date: July 8, 2013
Location: Middletown, CA
Posts: 5
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by 91notchback
Can you shift it out manually? If so: maybe a vacuum modulator. If not, does it slip?

Yes, if I shift it manually, it will shift from 1 to 2, but from 2 to drive, there is no change, and when I press on the gas pedal, it's like I'm in neutral with the RPM's revving to about 5,000.

I was told to check my linkage. But I don't know how to do that.
Old 7/8/13, 09:41 PM
  #4  
V6 Member
 
91notchback's Avatar
 
Join Date: February 21, 2012
Posts: 79
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by 94 5.0~HO

Yes, if I shift it manually, it will shift from 1 to 2, but from 2 to drive, there is no change, and when I press on the gas pedal, it's like I'm in neutral with the RPM's revving to about 5,000.

I was told to check my linkage. But I don't know how to do that.
Hmmm... If it was your linkage, it would be hard as hell to even put it in drive. Does it slip in any other gear? I'm afraid you don't wanna hear the diagnosis I'm about to give...
Old 7/8/13, 10:32 PM
  #5  
Member
Thread Starter
 
94 5.0~HO's Avatar
 
Join Date: July 8, 2013
Location: Middletown, CA
Posts: 5
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by 91notchback
Hmmm... If it was your linkage, it would be hard as hell to even put it in drive. Does it slip in any other gear? I'm afraid you don't wanna hear the diagnosis I'm about to give...
It isn't hard to put it into drive, but I was told that the previous owners had trouble with the linkage every so often, and all they did was go under there and mess with it a little, and then it would run good for another six months....

And.... if your going to tell me I need a new transmission, please don't.. The car isn't even worth putting a new transmission into... I just want it to run long enough to sell the p.o.s., and buy a new one... lol
Old 8/12/13, 11:33 PM
  #6  
GT Member
 
amplifier28's Avatar
 
Join Date: March 13, 2011
Posts: 139
Likes: 0
Received 3 Likes on 3 Posts
Any updates?
Old 8/29/13, 08:54 AM
  #7  
Member
 
BULLITT02199's Avatar
 
Join Date: August 24, 2013
Location: NC
Posts: 36
Likes: 0
Received 0 Likes on 0 Posts
It could be the vacuum mod is full of water. I've seen that over the years on the early iron models with automatics in them. I can't tell you how mnay time I climbed under there and just disconnected the hose and let the water out. I have no idea how it actually gets in there...just that it does.

On these newer models, it could also be that little piston on the side of the tranny they issued a service bulletin on. I did a little reading on service bulletins on the auto's before I bought my Bullitt and was thinking about buying another car.

Also if you have a handheld computer, see if you can get a code out of it. Since the computer controls shift points it should throw one out immediately. If you don't have a computer, maybe a friend has one?
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
ssjbuu
Repair and Service Help
6
8/28/15 08:55 AM
Hotrodder2014
5.0L GT Modifications
0
8/13/15 08:43 PM
trackpack13gt
2010-2014 Mustang
14
8/8/15 11:23 AM



Quick Reply: 1994 GT 5.0 Automatic Transmission won't shift past 2nd gear



All times are GMT -6. The time now is 10:59 PM.