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Old 06-28-2007, 11:08 AM   #1
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i need to know what this other hole does theres one for Idle air conrol but what does the other one function as??
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Old 06-28-2007, 12:12 PM   #2
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I can't see the pic but it'* probably for PCV.
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Old 06-28-2007, 12:22 PM   #3
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PCV passage is on the other side and integratedinto the UIM this passege goesinto the UIM into the LIM right next to the coolant holes
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Old 06-28-2007, 04:05 PM   #4
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Old 06-28-2007, 07:45 PM   #5
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please tell me one of you guys knows this
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Old 06-28-2007, 07:48 PM   #6
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The "What does this one do?" is part of the PCV system. The 3800 utilizes a internal PCV valve system, that runs through the block and heads. Don't block it.
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Old 06-28-2007, 07:55 PM   #7
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first of all thank you for helping but what i dont get is the PCV is on the other side of the LIM im pretty sure the 3800 dosent have 2 pcv passages theres no sign of any oil vapor or anything in the holes which means oil dosent get through that part at all, so what could it be??
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Old 06-28-2007, 08:32 PM   #8
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Run some water through that hole and see where it leads...

I am not sure what that is...

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Old 06-28-2007, 08:44 PM   #9
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it runs into the cylinder head ive got to belive its a breather or something cauce the way the TB is designed it dosent pull vacum so i guess its like a built in crankcase breather i guess ill just have to find out the hard way
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Old 06-28-2007, 10:36 PM   #10
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It'* PCV. Even the L67 S1 has two PCV passages through the LIM.
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