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Duramax Second Generation: 2004.5-2005 (LLY) Discuss the second generation (2004.5-2005 LLY) of the 6.6L Duramax diesel engine & associated components. 2006 LLY engine discussion belongs in Third Generation forum due to the differences of the 2006 LLY and the 2004.5-2005 LLY. Engine related discussion ONLY.

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Old 11-29-2013, 06:37 PM   #1 (permalink)
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Vane position

I monitor my turbo vane position with my edge insight. Was wondering if anyone notices a higher percentage when engine is cold. My normal idle position is 87, and when cold it's around 93/94 percent. It does come back down too 87 when truck warms up

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Old 11-30-2013, 10:19 AM   #2 (permalink)
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yup. its normal. you are probably seeing more boost at cruise also. its part of the cold parameters. the tc also doesn't lock up. its all to get the truck to heat up faster.


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Old 12-02-2013, 04:28 PM   #3 (permalink)
LLY Canuck
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higher vane percentage = more boost = hotter air going into the intake = you get warmer faster
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