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a904 cheetah reverse manual valve body trans no foward #1500829
09/13/13 02:47 PM
09/13/13 02:47 PM
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A904 trans ,fresh,new T/A cheetah reverse manual valve body, start engine, reverse is fine,no foward gears, any ideas?

Last edited by Joesixpack; 09/13/13 02:49 PM.
Re: a904 cheetah reverse manual valve body trans no foward [Re: Joesixpack] #1500830
09/13/13 02:54 PM
09/13/13 02:54 PM
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in a cattle trailer down by th...
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in a cattle trailer down by th...
No rear clutch apply, no forward gears. You could drop the valve body and do some air pressure checks. The front clutch and rear band servo are working though if you have reverse.

edit: don't hit the clutches with 150 psi of shop air though, you shouldn't need more than 30 psi to see if they are working.

Last edited by Guitar Jones; 09/13/13 02:56 PM.

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Re: a904 cheetah reverse manual valve body trans no foward [Re: Guitar Jones] #1500831
09/13/13 10:44 PM
09/13/13 10:44 PM
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MI, usa
dvw Offline
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Your missing the the direct ( rear location ) clutch . it's the only component applied in all forward gears. Drop the valve body and air check.
Doug

Re: a904 cheetah reverse manual valve body trans no foward [Re: dvw] #1500832
09/14/13 02:09 PM
09/14/13 02:09 PM
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ok thanks

Re: a904 cheetah reverse manual valve body trans no foward [Re: Joesixpack] #1500833
09/19/13 07:09 PM
09/19/13 07:09 PM
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pan off...draining....valve body next,trans guy coming sat to do the air checks....if we cant figure it out then out comes trans i will have him go thru it...looking for a core for a spare,V8 A904 non lock up.all ready have rebuild kit&spare Chettah RMVB.
UPDATE just located a spare a904 trans in Elgin,getting it today...gonna rebuild it, and R&R with trans#1, figure out what is wrong with it,fix it and have a spare trans for 2014.

Last edited by Joesixpack; 09/21/13 08:47 AM.
Re: a904 cheetah reverse manual valve body trans no foward [Re: Joesixpack] #1500834
09/22/13 11:03 AM
09/22/13 11:03 AM
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the view of today....ah internal guts...dripping fluid...hope i can get it figured out...

7861387-904002.JPG (53 downloads)
Re: a904 cheetah reverse manual valve body trans no foward [Re: Joesixpack] #1500835
09/22/13 11:40 PM
09/22/13 11:40 PM
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OK air check done,all servos and bands are working.....checked them twice...possible problem with TA Chettah RMVB ?







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