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'99 - '06 GM Truck Modifications
Engine & Performance
99 1500 4.8 oil separator options
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<blockquote data-quote="INW-Iron-Steel" data-source="post: 27614" data-attributes="member: 11733"><p>[ATTACH=full]5496[/ATTACH]</p><p></p><p>I would pull the PCV valve on the back of your driver-side valve cover and see what type you have. If original, it should look similar to the one above and make a click-clack noise when you shake it. If you still have that type I would replace it. The OE type will eventually fail, and that is impossible with the fixed orifice type. Worst case it gets plugged up. You remove it, blast some solvents through it, and re-install. </p><p></p><p>I am a big fan of the fixed orifice. I put them in everything, including old big cam small blocks. IMO it is easier to tune for a miniscule constant leak than trying to find that exact perfect PCV valve that wants to work with your combo.</p></blockquote><p></p>
[QUOTE="INW-Iron-Steel, post: 27614, member: 11733"] [ATTACH type="full" width="355px"]5496[/ATTACH] I would pull the PCV valve on the back of your driver-side valve cover and see what type you have. If original, it should look similar to the one above and make a click-clack noise when you shake it. If you still have that type I would replace it. The OE type will eventually fail, and that is impossible with the fixed orifice type. Worst case it gets plugged up. You remove it, blast some solvents through it, and re-install. I am a big fan of the fixed orifice. I put them in everything, including old big cam small blocks. IMO it is easier to tune for a miniscule constant leak than trying to find that exact perfect PCV valve that wants to work with your combo. [/QUOTE]
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'99 - '06 GM Truck Modifications
Engine & Performance
99 1500 4.8 oil separator options
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