Codes

[Big_Mel]

I have a 2002 LB7 Crewcab Dually. Getting P0700, P0741 codes. Not running it hard by any means. Where do I start? Tracing wires? Replace Solenoid?
Thanks

 

[Chevy1925]

search function

 

[S Phinney]

That means the torque convertor clutch is not working properly. No torque convertor lockup. Do you by change have Tony’s lockup box on it and running it unlocked?


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[Big_Mel]

Nope

 

[Mike L.]

I have a 2002 LB7 Crewcab Dually. Getting P0700, P0741 codes. Not running it hard by any means. Where do I start? Tracing wires? Replace Solenoid?
Thanks

Need a lot more info.

 

[Big_Mel]

Need a lot more info.

Trans is running at 170-190 degrees. What other info you need?

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[Ridin'GMC]

What is done to the truck? Tunes? Mileage?

 

[Big_Mel]

What is done to the truck? Tunes? Mileage?

200k. Just got EFI live and sac injectors this week but had the codes before the upgrade

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