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TH 350 - shift up and down 2-3 permanently

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Old Aug 5, 2008 | 01:18 AM
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TH 350 - shift up and down 2-3 permanently

Hi,
I have an Impala 350 cui with a TH 350.

Since a couple of days the tranny shifts up and down two times a second. I have the feeling that this is mostly the case when the engine is hot aftewr 10 miles.
I have changed the oil and the filter, and the oil level is correct.

What yould be the reason for my problem, what can I check?

Tom
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Old Aug 5, 2008 | 12:33 PM
  #2  
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Re: TH 350 - shift up and down 2-3 permanently

Today I checked the modulator hose. No leak and no oil inside. What is my problem?

I use Dextron III instead of Detron II, does this have any effect?
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