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Old 11-22-2009, 08:15 PM
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Quote:
Originally Posted by cowboytruckn View Post
You're referring to the MDS where it shuts off cylinders to maximize fuel economy. I don't know why not because I would think it is all in the programming. Maybe they just always want that power in the big engines.
The MDS engine is a whole different animal. It uses an oil control solenoids to lock and unlock the lifters on 4 cylinders of the engine. Newer 5.7's also have variable valve timing.
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