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AOD TRANS bumps

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Old Jun 21, 2008 | 09:22 AM
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From: NJ BAYVILLE
Question AOD TRANS bumps

can any body tell me what could
i have a 1990 ford econoline van 5.0l 302 eng 1/2ton
when am going down the road the overdrive bumps or jerks in the over drive
when it shifts only
it has 96k on it
 
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Old Jun 21, 2008 | 02:54 PM
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A lot of bump / jerk shifting is caused by a slight stumble / misfire in the engine.

Even a small glitch can cause this condition.

You are probably going to think BS, the engine runs like a top.

But when was the last time the plugs, wires, cap were looked at?
 
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Old Jun 22, 2008 | 02:54 AM
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It could be a broken accumulator spring in the transmission. I'm not familiar with that particular one though.
 
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Old Jun 22, 2008 | 06:13 PM
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From: NJ BAYVILLE
it feels like a bucking sound it last shift
i can feel it it only does it in over drive the other is ok
 
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Old Jun 22, 2008 | 06:14 PM
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From: NJ BAYVILLE
Originally Posted by stuart1
A lot of bump / jerk shifting is caused by a slight stumble / misfire in the engine.

Even a small glitch can cause this condition.

You are probably going to think BS, the engine runs like a top.

But when was the last time the plugs, wires, cap were looked at?
it feels like a bucking sound it last shift
i can feel it it only does it in over drive the other is ok
 
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Old Jun 24, 2008 | 09:09 PM
  #6  
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From: NJ BAYVILLE
Aod Trans

Originally Posted by icrman
It could be a broken accumulator spring in the transmission. I'm not familiar with that particular one though.
i drove it today it you can feel it when it shifts here like a noise
 
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