Tranny shifting funny

[Vasbinder]

03 duramax stock tranny it shift's kinda hard and won't shift till past 2500. Acts like it's in tow haul mode. It has codes P0700, U2104, U2105, U2106,U1800. I pulled the Edge off when this happened I triad to reset the computer with a Snap On reader didn't reset.Any ideas of how to fix it?

 

[The Neens]

How many miles on the fuel filter and trans spin-on filter?

 

[Vasbinder]

Fuel filter less then 1000 miles spin on around 6000

 

[The Neens]

Does it do it with stock programming?

 

[Vasbinder]

I was pulling a 20 foot trailer with a Bobcat skidsteer with Edge on level two in tow haul. when shifting to 3rd it felt like a engine miss and ran normal. Engine code came up later on the drive home. Now it shifts funny

 

[Vasbinder]

Yes the Edge is off the truck. Do I need to unhook the battery to reset the computer?

 

[Mike L.]

If your trans is stock you may be in trouble.

 

[Vasbinder]

How can I find out if it is shot

 

[Vasbinder]

How much is a tranny rebuild to a stage 4

 

[The Neens]

How much is a tranny rebuild to a stage 4

Call Mike L. tomorrow at his shop...He'll go over some options with you...

 

[paint94979]

Call Mike L. tomorrow at his shop...He'll go over some options with you...

x2

 

[Vasbinder]

The tranny is not slipping going to check the plugs maybe loosing signal. Pulled trailer today with out a problem.