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3.5l valve cover?

rsm688

Well-Known Member
Messages
234
Location
mississippi
Okay guys my H3 has been burning some oil and found a few threads about the valve cover's "pcv" type valve getting clogged and needing to replace the valve cover. Trouble is GM discontinued the 3.5L valve cover. Does anyone know if the 3.7L cover will fit? If not has anyone pulled theirs off and tried to clean it out before?

This is the part number for the 2006 3.5L valve cover 12591996

Thanks,
Spencer
 

alrock

El Diablo
Staff member
Messages
10,677
Location
Scottsdale
Personally, I'm not convinced that the oil usage on my engine is from the valve cover/PCV - but please note that I'm not an expert on engines by any means but I did do some research a while back. I think you may be seeing blow by from a worn engine and that oil gets up into the intake and then gets burned. Does your intake have oil in it, or is your throttle body dirty? I've poured as much as 2-3 oz out of an OEM intake resonator but have seen them with much less, but still a noticeable coating of oil. I believe oil in the intake shows that the PCV may actually be working but it's simply that too much oil is getting by in the engine. Someone will probably correct me on this.
 

rsm688

Well-Known Member
Messages
234
Location
mississippi
Thanks airlock, you may be right! I haven't checked in my resonator yet. I probably add a 1/2 quart of oil every month or so I would say. I just put new plugs in and ran a little marvel mystery oil through it before a fresh oil change so maybe that will help some.
 
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