Duramax Diesels Forum Truck of the Week
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Old 03-02-2018, 01:23 PM
Big_Mel Big_Mel is offline
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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
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Old 03-02-2018, 01:52 PM
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Old 03-02-2018, 02:28 PM
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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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Old 03-02-2018, 03:55 PM
Big_Mel Big_Mel is offline
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Nope
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Old 03-03-2018, 10:08 AM
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Quote:
Originally Posted by Big_Mel View Post
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.
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Old 03-03-2018, 10:15 AM
Big_Mel Big_Mel is offline
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Originally Posted by Mike L. View Post
Need a lot more info.
Trans is running at 170-190 degrees. What other info you need?

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Old 03-03-2018, 10:17 AM
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What is done to the truck? Tunes? Mileage?
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Old 03-03-2018, 12:13 PM
Big_Mel Big_Mel is offline
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Quote:
Originally Posted by Ridin'GMC View Post
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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