2006 lucerne 3.8 series III where is pcv valve ?
- Thread starter lucerne06
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If it's like every other transverse mounted, FWD V6 that GM has produced in the last 20 years, it should be in the rear valve cover (against the firewall).
Good looking car, BTW.
Good looking car, BTW.
If the Series II is like the Series III, it's at the passenger side of the engine under the MAP sensor. Take the plastic engine cover off, locate the map sensor, unplug it, and twist the little cartridge thingy loose that the map sensor was plugged into. It's a spring loaded cap that will pop out and the PCV valve is in there. Kind of a weird design - the PCV vents directly from the crankcase into the intake manifold.
correct you are drew, it took a while but I finally found it,,, I never expected it to be under the MAP sensor. My question now is HOW DOES IT WORK??? usually they are into the valve cover and crankcase, but what is the purpose of doing the pcv valve this way??/
JTK
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Originally Posted By: lucerne06
..usually they are into the valve cover and crankcase, but what is the purpose of doing the pcv valve this way??/
It elimates hoses/fittings and makes things more complicated for the DIYer IMO. It probably doesn't call for servicing on the 3.8L anyway. There's no replacealbe valve at all on the GM Vortec/Atlas 4,5 and 6cyl and Ecotec crankcases are vented directly into the intake manifold. Nothing visiable at all on them.
Joel
..usually they are into the valve cover and crankcase, but what is the purpose of doing the pcv valve this way??/
It elimates hoses/fittings and makes things more complicated for the DIYer IMO. It probably doesn't call for servicing on the 3.8L anyway. There's no replacealbe valve at all on the GM Vortec/Atlas 4,5 and 6cyl and Ecotec crankcases are vented directly into the intake manifold. Nothing visiable at all on them.
Joel
Somewhere in the emissions law setup its been mandated that the PCV valve be installed more solidly and the vacuum line setup (if it has it) in such a way the engine will not run, or run very poorly if it is disconnected.
Originally Posted By: Drew99GT
It's a spring loaded cap that will pop out and the PCV valve is in there.
Push down and turn counter-clockwise with a 16mm socket. I find it the easiest by using a deep 16mm socket with a 3/8" handled driver (AKA spin handle) attached.
It's a spring loaded cap that will pop out and the PCV valve is in there.
Push down and turn counter-clockwise with a 16mm socket. I find it the easiest by using a deep 16mm socket with a 3/8" handled driver (AKA spin handle) attached.
it's actually good engineering and eliminates hoses and clamps for long term reliability.
Rarely requires any service at all, just a periodic replacement. Most can simply be cleaned and re-installed.
Leave it alone until the specified interval in your owners manual. Odds are the cheap one you buy at the auto parts store will be lower quality as well!
Rarely requires any service at all, just a periodic replacement. Most can simply be cleaned and re-installed.
Leave it alone until the specified interval in your owners manual. Odds are the cheap one you buy at the auto parts store will be lower quality as well!
I got a purolator replacement or 2.99 all the same price, actually it looks like no difference between the acdelco or the purolator actually. The reason I replaced was to see if that would help with lowering the oil usage.also the original is almost 4 years old so i fiqured it couldn't hurt either way.
I don't need a socket to remove the one on my car. Two notes: Make sure to put the little gasket back on, and buy from the dealer (the NAPA one I originally bought fit too loosely even with the gasket, and rattled).
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