5.9L 12V Performance Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps Related to Performance and Longevity

Tranny won't shift right

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Old Jul 20, 2009 | 09:57 PM
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Altitude Adjuster's Avatar
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Default Tranny won't shift right

Just picked up truck to do a swap in my 1/2 ton dodge. 94 12v w/ auto trans. If you take off hard from a dead stop the truck seems like it is almost hitting a rev limiter and not shifting quick. The worst is it won't shift from 2nd to 3rd until 2500 rpms then when it shifts it pulls hard like it was shot out of a cannon. Please let me know what you guys think i'm not a tranny guy and new to this motor.
 
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Old Jul 20, 2009 | 10:38 PM
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if its stock thats how it is mine the same way need a vb and tc
 
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Old Jul 20, 2009 | 11:06 PM
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Thanks are you happy with the pensacola injectors?
 
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Old Jul 21, 2009 | 10:52 AM
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for 200 bucks cant complain one bit just the wrong spray pattern but there not bad no problems
 
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Old Jul 21, 2009 | 10:56 AM
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ya my dually is the same way
 
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Old Jul 21, 2009 | 11:08 AM
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That shift and then rocket feeling is the TC locking up.
 
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Old Jul 21, 2009 | 11:17 AM
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what the actual problem in you have no governor springs.when you mat it,it tries to hold the gear and when it gets over 2000rpm's it starts defueling and has no power so it takes forever to shift,mine does it too,till this weekend.and he's right when it takes off like a rocket that is the convertor locking up.you need a lock-up switch and you can make it pull like that in 2nd and 3rd gears too.
 
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Old Jul 21, 2009 | 11:59 AM
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so if we put a gov spring kit it would have power till it does shift?
 
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Old Jul 21, 2009 | 12:39 PM
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yes it would,that's why it doesn't,it starts defueling so it can't get the full fuel,and boost starts dropping,it would help more than you would think,you won't even think it's the same truck.
 
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Old Jul 21, 2009 | 01:13 PM
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i had a gov spring kit and sold it to get the afe intake so now i have to order another
 
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