2005 LLY allison range shift inhibited

[Andremaxproblems]

No problem. Everything actually looks normal except for the filter just falling out when I dropped the pan. If that filter wasn't seating properly would that not cause vacuum problems?

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[Andremaxproblems]

My measurements seems to be exact to what you have on that pan

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[Mike D]

My measurements seems to be exact to what you have on that pan

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Yes your pan looks stock. Sounds like you have called in and talked with our service manager Chad. You told him the truck drove fine for a couple days then started shifting weird.
Looks like some better diagnostic is needed. Did you make an appointment to bring it in?


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[Andremaxproblems]

No not yet Mike. I just closed it back up. I am a little short on fluid now but man she does not want to go in R. One thing I have noticed is the PRND123 display is really dim. I can't see what gear it goes into at day time. Is this a sign that the amperage may be low to the trany

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[Andremaxproblems]

I appreciate all the replies today. I am a little frustrated with this truck right no. I just last month had to replace the water pump and now this. This truck is my daily commuter to and from work so I need to figure it out soon.

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[Mike D]

Try eliminating the Banks tuner. Also consider putting your original NSBU switch back in since the problem is getting worse with the new one installed.


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[Andremaxproblems]

Will do that tomorrow. You guys carry the factory NSBU part or is that dealer only

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[Andremaxproblems]

Chad also mentioned that it could be my ignition switch

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[Mike D]

Will do that tomorrow. You guys carry the factory NSBU part or is that dealer only

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We carry and instal original Allison brand.


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[Andremaxproblems]

I just browsed your website. Very nice and the price is competitive. Will have to stop by and meet you guys.
Thanks again for all your input.


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[DmaxStoreJimmy]

I just browsed your website. Very nice and the price is competitive. Will have to stop by and meet you guys.
Thanks again for all your input.


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Please do, though we wish it were under better circumstances. Just a FYI, tomorrow we are closing early (1:30pm)....

[Andremaxproblems]

Hey Mike how big of a job is the ignition switch. I am going to replace that today.
After that fails I will put back the old NSBU and see if it acts different. If all the above fails I will have to schedule an appointment with you guys

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[Andremaxproblems]

Update I fixed my problem. Came down to a 33 dollar ignition switch and it took me about a half hour tops to swap it out.
That ignition switch can be the cause of a lot of trouble with the allison.


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[DmaxStoreJimmy]

Glad you got it figured out!


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[Mike D]

Update I fixed my problem. Came down to a 33 dollar ignition switch and it took me about a half hour tops to swap it out.
That ignition switch can be the cause of a lot of trouble with the allison.


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Good deal. Chad said he talked with you on the phone and thought that might be the source of your issue. 👍


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