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Discussion Starter · #1 ·
Hi Guys,


2015 GMC 2500 Duramax w/Allison


I spoke to my tuner and he had suggested to replace the stock Transmission solenoid with a new solenoid #29541895 to increase line pressure before he does transmission tuning.


Has anybody done this and opinions?


Also does anybody sell a kit to do this? Im thinking I would need obviously the new solenoid, pan gasket, filter and oil. I have never done anything like this before so if im forgetting anything please advise.


Thank you
 

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Discussion Starter · #13 ·
HI Guys,


From what im gathering the solenoid valve is there only to satisfy the control module and not throw a code and then the tuner can control line pressure.


If you have PPEI do the tranny tune they can control the pressures without replacing the solenoid. Again this is my understanding and not certain of the information
 
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