89 Ford Auto Tranny problem

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  #1  
Old 09-29-02, 05:25 PM
victoni
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89 Ford Auto Tranny problem

I have an 89 ford bronco, which last year started to give this problem.
In the mornings it will not shift into drive in any gear. Reverse is never a problem. After it warms up a little it would be ok and after that for the rest of the day. At first it was not to big of and issue. All I would do is go out and start it and let it warm up, while I get ready in the morning, but now its getting to be a real problem if I need to sell this guy. Is it something simple to replace without seeing the tranny specialist?
I noticed that sometimes immediatly after starting the truck that if I shifted to drive it would catch, otherwise it would just sit there as in neutral.

Have any ideas, (the transmittion fluid has been checked already)

Thanks
 
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  #2  
Old 09-29-02, 07:54 PM
Joe_F
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Sounds like internal failure or a weak pump...rebuild time.

Mileage?
 
  #3  
Old 09-29-02, 09:48 PM
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Location: Colorado
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Tranny fluid needs to be pink in color and not smelled burnt. Have you changed the fluid and filter? If the filter becomes partially clogged the transmission will see a pressure drop, especially when cold, and may cause shifting problems.
 
  #4  
Old 10-01-02, 09:14 AM
victoni
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Thanks guys, this is sure one quick responding board. Surely one to recommend.

Sorry for the lack of info, but its the full size bronco, not sure of the tranny version. Its a plain stock 4*4, 351w, 89 with about 130K miles. I have had the fluid and filter changed out about 20k miles ago by some local oil change outfit. Level is good and color still reddest pink and not burnt per se. ( if the filter is clogging would it affect the color?)

I will first go over changing the filter again, and see what happens. Your logic about the internal pump failing sounds reasonable and of course expensive, but would that affect the drive n any other way. Again, the problem is only in the morning. Once it heats up, it drives just fine?

Thanks in advance guys.

Victoni
 
  #5  
Old 10-01-02, 09:20 AM
Joe_F
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As you said, change the fluid and filter and let's see where that nets us.

My thought is internal failure knowing the mileage and the age of the vehicle.
 
  #6  
Old 10-01-02, 04:46 PM
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If changing the fluid works good.I agree with Joe you have an internal pressure problem,pump or leaking seal.Since you have reverse I would suspect a forward clutch piston seal,other related seal problem.However I fix GM trannies not Fords so there are likely some differences.Either way its rebuild time.
 
  #7  
Old 10-01-02, 08:38 PM
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I don't know wheter this is an ovberdrive tranny or not, but the AOD ford trannies have lots of governor problems. If it gets stuck the least bit, you will have shifting problems. The slightest speck of dirt can do it.
 
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