transmission no gears when warmed up

[jdutcher4426]

I have a 2006 envoy my wife was driving down the road and it felt like it went into neutral. If let sit for a few minutes it will go into any gear, for a few minutes then its like its in neutral again.

 

[Mooseman]

Fluid level and condition good? When was it changed last?

 

[jdutcher4426]

Fluid level and condition good? When was it changed last?

Fluid level is good, as far as when its been last changed that is unknown.

 

[Mooseman]

What kind of mileage does the truck/tranny have? Something like this sounds more like a tranny shop should be consulted.

 

[16vcabman]

I agree with Mooseman. Seals in the hydraulic system can fail when hot. It could be electrical too. Find a reputable company that others have trusted

 

[jdutcher4426]

here are the codes that were pulled U1026,C0244,C0161,C0196.C0455,C0110,P0300,P0171,P0306 could any of these caused the issue?

 

[jdutcher4426]

What kind of mileage does the truck/tranny have? Something like this sounds more like a tranny shop should be consulted.

200,000 MILES here are the codes that were pulled U1026,C0244,C0161,C0196.C0455,C0110,P0300,P0171,P0306 could any of these caused the issue?

 

[jdutcher4426]

Update: I changed the fluid, the filter both shift solenoids and cleaned the valve position pressure switch. and it is back up and running

 

[tak13]

The first code has to do with PCM communication the "C" codes is a mix of steering and abs problems, and the "P" codes are for misfires and 171 is a lean code. You got all those codes at one time?