stock tranny - Ford Powerstroke Diesel Forum
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post #1 of 4 Old 08-02-2007, 06:31 AM Thread Starter
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stock tranny

When am I going to start running into problems with my tranny as far as performance wise. My next 2 mods are going to be snow performance and injectors. What do youll think? Also what are some symptoms of tranny about to go bad? I am not sure if I know what slipping is?? One last question how often should you change your tranny fluid? I just turned 99k and I dont think it has ever been changed.



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post #2 of 4 Old 08-02-2007, 06:40 AM
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Originally Posted by onecrazyblackredenck View Post
When am I going to start running into problems with my tranny as far as performance wise. My next 2 mods are going to be snow performance and injectors. What do youll think? Also what are some symptoms of tranny about to go bad? I am not sure if I know what slipping is?? One last question how often should you change your tranny fluid? I just turned 99k and I dont think it has ever been changed.
Tranny slipping, watch the tach it if you get on the throttle and go no where and the tach goes way up. Then most likely you have slippage in the trans.

Slipping trans is the most common symptom of the tranny going out. Usually you will have slippage in 2nd or 4th.

I say 2nd because from my understanding that is also passing gear. 4th is right before OD, and if you tow and have the od turned off you constantly run in 4th which then it wears out and starts to slip.

If you never had the tranny fluid and filter changed, I would recommend you not to do it. I know it sounds wierd. But I was told this by a tranny guy. He sees most trannies go bad right after some one does a fluid and filter change on a tranny that never had that done. I don't know why that is but over my years of turning wrenches I have seen the same thing. I guess what happens is the tranny gets use to all the clutch particals and contaiminates in the fluid. Then you drain all that flush all that bad crap out. Put in a fresh new filter and fluid. The next thing you know you have slippage and need a rebuild.


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post #3 of 4 Old 08-02-2007, 10:40 AM
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You throw injectors at that tranny... say byebye... its gone in short order...

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post #4 of 4 Old 08-02-2007, 10:41 AM
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It all depends on which Ford mechanic built it on what day and how you drive it. If you do 4wd boosted launches with bigger tires then it will obviously reduce the lifespan as well.

Just start saving for a JW trans now..

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