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Old 07-06-2010, 02:37 PM   #1
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Stupid Tramsmission question

Ok I know this is kinda stupid for me to ask at my age, but my 01 TJ has a 30rh Trans mission in it, mainly cause my left knee don't do so well on clutches anymore.
Anyway, its listed as a 3 speed, ok mine shifts at 15, and 27, yea that makes three, but when I let off the gas enough top stay at a constant speed it shifts again, and the rpm goes way down (400-500). I've never seen any thing anywhere about an overdrive so I'm assuming its a stall converter in it, am I right? Or is it an automatic overdrive system?

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Old 07-07-2010, 08:40 AM   #2
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I believe it's a stall converter

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Old 07-07-2010, 08:40 AM   #3
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My 06 auto w/OD does that too
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Old 07-07-2010, 09:34 AM   #4
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That would be the torque converter locking up feels like another shift.
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Old 07-07-2010, 09:50 AM   #5
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At what RPM does the stock converter lock up?
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Old 07-07-2010, 03:41 PM   #6
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Quote:
Originally Posted by DevilDogDoc View Post
That would be the torque converter locking up feels like another shift.
Good.....thanks, I love stall convertes stall converters

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Originally Posted by doclouie View Post
At what RPM does the stock converter lock up?
Mine won't lock up until at least 35 mph and a constant speed for at least 3 seconds
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Old 07-07-2010, 03:46 PM   #7
Knows a couple things...

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At what RPM does the stock converter lock up?
No particular rpm, the engine computer figure out when it needs to lock/unlock.
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Old 07-07-2010, 07:20 PM   #8
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No particular rpm, the engine computer figure out when it needs to lock/unlock.
That explains a lot.
So if it ever stops locking up it may be a computer issue instead of a bad converter?

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