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Tranny fluid disappearing



 
 
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  #1  
Old July 22nd 15, 02:33 PM posted to rec.autos.tech
Ivan Vegvary[_2_]
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Posts: 57
Default Tranny fluid disappearing

1991 Mazda B2600i pickup, automatic.
Uses 1 qt. fluid per 200 miles. Absolutely no drips on concrete carport. Bottom of tranny dry.
Where is the fluid going?
All help appreciated.
Ivan Vegvary
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  #2  
Old July 22nd 15, 02:46 PM posted to rec.autos.tech
.[_2_]
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Posts: 113
Default Tranny fluid disappearing

On 7/22/2015 8:33 AM, Ivan Vegvary wrote:
> 1991 Mazda B2600i pickup, automatic.
> Uses 1 qt. fluid per 200 miles. Absolutely no drips on concrete carport. Bottom of tranny dry.
> Where is the fluid going?
> All help appreciated.
> Ivan Vegvary


It MAY have a vacuum modulator with a perforated diaphragm
which can cause fluid to get ingested by manifold vacuum.
  #3  
Old July 22nd 15, 04:34 PM posted to rec.autos.tech
Ivan Vegvary[_2_]
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Posts: 57
Default Tranny fluid disappearing

Thank you! Will check.
  #4  
Old July 22nd 15, 04:37 PM posted to rec.autos.tech
.[_2_]
external usenet poster
 
Posts: 113
Default Tranny fluid disappearing

On 7/22/2015 10:34 AM, Ivan Vegvary wrote:
> Thank you! Will check.


Looks like it does have a vacuum modulator. Disconnect
the vacuum line and check; ANY fluid indicates an issue.
 




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