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Generation IV Internal Engine 2005-2014 LS2 | LS3 | LS7 | L92 | LS9

l92 Lifter cylinder deactivation question

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Old 05-21-2009, 05:27 PM
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Default l92 Lifter cylinder deactivation question
Does anyone know how to tell if an l92 engine has the cylinder deactivation lifters without removing the heads??
thanks
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Old 05-21-2009, 07:01 PM
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Yes,


If your valley cover(under intake manifold) is bumpy it has Active Fuel mangament (AFM) If its smooth it does not have AFM.



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Old 05-21-2009, 08:14 PM
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great.. thank you. .its smooth..
So i can reuse lifters i guess
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Old 05-22-2009, 02:14 AM
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Originally Posted by schary
great.. thank you. .its smooth..
So i can reuse lifters i guess
And if you dont have the intake off, the best way to tell is whether there is a connector at the rear of the manifold on top of the valley cover.

It is in the shot above behind the oil pressure sensor.
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