'97 D90 transmission shifting problem - Defender Source
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  #1  
Old December 11th, 2012, 12:44 AM
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'97 D90 transmission shifting problem

I just installed a used but perfectly functioning automatic transmission into my '97 D90. Everything works as it should until it should shift into third and fourth gear. Reverse works fine, and from a stop it shifts great from first to second, but then stays in second gear and will not shift up. Any ideas??
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  #2  
Old December 11th, 2012, 01:11 AM
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Possibly the down shift cable is too tight causing it to stay in 2nd. Not sure where it attaches in the fuel system.
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Old December 13th, 2012, 08:37 PM
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'97 auto tranny problem

My 97 d90 that I just installed a new auto transmission in Will not shift from second to third gear Until the engine reaches 3000 RPM, Any ideas?
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  #4  
Old December 13th, 2012, 09:28 PM
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I was having similar issues on my classic. The kickdown cable may have something to do with it. I ended up changing my filter and draining the fluid a couple of times. It would still have to warm up before it would shift properly. I wheeled it for 3 days and it now functions fine. I imagine something had gummed the valve body up. It is now shifting fine and I will probably drain and fill the transmission pan next time I change the oil. I e been using that valvoline maxlife atf.
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  #5  
Old December 13th, 2012, 09:56 PM
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Ember, scroll down in this thread a bit to see some directions on how to adjust the kickdown cable. Remember what your current setting is and adjust it and test to see if it shifts better

http://www.defendersource.com/forum/...ble+adjustment


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  #6  
Old December 13th, 2012, 10:06 PM
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Don 't be surprised if the poor shifting returns post drain and refill.
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  #7  
Old December 13th, 2012, 10:17 PM
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Quote:
Originally Posted by Rocky View Post
Don 't be surprised if the poor shifting returns post drain and refill.
We don't need experience from the shop monkey....

It is either a gummed up valve body which can usually be short term relieved by a flush, or the kickdown cable adjustment. Could be either depending on how the trans was dealt with in removal and refit. My bet is kick down as that is a b$itch sometimes to dial in.
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  #8  
Old December 13th, 2012, 11:24 PM
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Ate you sure it's not a stick shift?
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  #9  
Old December 13th, 2012, 11:44 PM
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thanks so much

thanks guys for the ideas I really appreciate it, I disconnected the kick down cable entirely to see if that would help, this did nothing. I think I'll do the fluid flush and filter change first. I removed the transmission from a '97 disco and plugged it straight into the D90, so it didn't sit around unused for any time and it functioned perfectly when it was in the disco. Does anyone know what controls the shifting, is it done by computer or hydraulics, etc?
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  #10  
Old December 14th, 2012, 12:10 AM
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No computer on that trans.
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  #11  
Old December 14th, 2012, 05:54 AM
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dont drive with the kickdown cable disconnected. Will the transmission shift properly when it warms up?

At least you are getting lots of pratice with swapping them
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  #12  
Old December 14th, 2012, 06:26 AM
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Quote:
Originally Posted by Rocky View Post
Don 't be surprised if the poor shifting returns post drain and refill.
For a few days until everything settles down again.

Quote:
Originally Posted by dmarchand View Post

We don't need experience from the shop monkey....

in.
Lol plushie LR4 boy
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  #13  
Old December 14th, 2012, 07:44 AM
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You should not flush a transmission unless you have been doing it since new. It could make some things worse.
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Old December 14th, 2012, 08:49 AM
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Quote:
Originally Posted by woldd90
You should not flush a transmission unless you have been doing it since new. It could make some things worse.
I agree with this advice. A local auto repair franchise owner told me he's no longer allowed to flush transmission fluids. Only drain and replace. The liability for transmission failure is too high and not manuf recommended.

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  #15  
Old December 14th, 2012, 09:42 AM
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Quote:
Originally Posted by woldd90 View Post
You should not flush a transmission unless you have been doing it since new. It could make some things worse.
I have always been leary of this as well, i did it on my Classic as a last resort. While I did not actually "flush" the system Ive essentially replaced all the fluid. Ive driven it about 1000 miles since all of this and it has been fine. At this point it may be worth a try, you are probably looking at replacing the transmission anyways..
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