2003 c4500

[3-D]

I have an intermittent problem with the trans going into limp mode it has thown codes 0776,0746,0722. I replaced the output sensor on the rear of the trans no change in the symptoms. Any ideas? It has a durmax with the allison trans.

 

[Mike L.]

I have an intermittent problem with the trans going into limp mode it has thown codes 0776,0746,0722. I replaced the output sensor on the rear of the trans no change in the symptoms. Any ideas? It has a durmax with the allison trans.

Try the turbine sensor next. Scanner should be hooked up so you can see what the sensors are doing. Could be a wire.