Need help!

[adairfuentes]

I have a 2002 Lb7 I just got my tranny rebuilt, new clutches new steels new internal harness, new pms, transgo shift kit. It throws a p0841 and a p0846. Truck will not move forward or backwards. But once I induce a limp mode and disconnect the trans I'll have delayed reverse, and stuck in a gear don't know which one but it's pretty high cause it takes my truck forever to move. Fluid is clean and brand new.

 

[WVRigrat05]

Who did the trans?

 

[Awenta]

^^ that.

And why aren't you talking to them.


If you're limping it it's 4th. If you're unplugging it it's 3rd.

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[adairfuentes]

Who did the trans?

My dad built the trans

 

[Awenta]

Is he a Trans builder?

Was it a stock rebuild?

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[adairfuentes]

^^ that.

And why aren't you talking to them.


If you're limping it it's 4th. If you're unplugging it it's 3rd.

Sent from my SM-N910V using Tapatalk

Truck won't move if the truck is plugged in. And once I unplug it it moves but really really slow

 

[WVRigrat05]

edit: treed.

Has your dad ever built an Allison? Who's kit was it?

 

[Awenta]

Truck won't move if the truck is plugged in. And once I unplug it it moves but really really slow

If the truck is plugged in? What does that mean.

A hybrid with shit batteries?

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[adairfuentes]

Is he a Trans builder?

Was it a stock rebuild?

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Yep been a builder for 15 years. Only Allison he's had a problem with, and no.. Alto red clutches
Koleno Steels
Transgo shiftkit

 

[adairfuentes]

If the truck is plugged in? What does that mean.

A hybrid with shit batteries?

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If the trans is plugged in

 

[WVRigrat05]

Whats unplugged? TCM?

 

[adairfuentes]

Whats unplugged? TCM?

If the transmission is unplugged the truck will limp and move.. But once the transmission harness is plugged back into the transmission the truck won't move at all

 

[WVRigrat05]

Those are pump codes. According to an old thread from Mike, your pump lost prime, you have a drain back issue or a cracked suction tube or filter issue

 

[WVRigrat05]

Where are you unplugging your trans? At the TCM under the hood? The connection on the pass side of trans or the nbsu switch on the driver side?

 

[Mike L.]

Check voltage to the TCM red connector. Wire #1 and #5 are ground. #'s 2,3,4 are 12v. Check fuses under hood and dash.