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Discussion Starter · #1 ·
I have a 1990 D150 and lately is has been weird. When accelerating from a dead stop it jumps and shakes real bad. It also takes forever for it to shift after it is moving. And it is making a funny noise "ping, clank". I replaced the trany filter today and when i dropped the pan i saw an O-ring thing that looked like it was in the wrong place. I will have pics on webshots in the morning. Please help do i need a new trany.
 

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That does NOT sound good, but I'm not an automatic trans maven... the picture(s) will help those who are.
 
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That doesn't look like an O-ring to me. what is it made out of? It is definitely not supposed to be there. was there any metal shavings in the fluid? I would not say you need a new tranny, but maybe a rebuild/repair.
 

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ive got a 727 on the bench now with the valve body out i see no where that could go . thats a tear down issue
 

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Discussion Starter · #9 ·
Through more research i have decided that i have an A904 3sp transmission. and i have ordered a transmission repair manual so in a week or so i should have the anserw i need
 

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Discussion Starter · #10 ·
after several searches i have noticed a lot of a904's changing gears and not working in reverse. reverse works just fine and it will shift it just takes a while some times and makes that noise
 

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I have no idea what that is...There wasn't anything like that in the 904 I tore apart awhile ago.
 
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Don't let the automatic transmission scare you, with a good manual you can tear it apart and have it back together in no time. If the clutch pack fell apart you will have to pull the tranny and replace the clutch pack, I'd do a full rebuild since it has to be torn down.
 

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swwaltw said:
I have a 1990 D150 and lately is has been weird. When accelerating from a dead stop it jumps and shakes real bad. It also takes forever for it to shift after it is moving. And it is making a funny noise "ping, clank". I replaced the trany filter today and when i dropped the pan i saw an O-ring thing that looked like it was in the wrong place. I will have pics on webshots in the morning. Please help do i need a new trany.
you need to talk to john vinson at 800-727-5891 he is the top t/f specialist in the country....there is nothing that shape in a t/f transmission
 
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