12642631 Positive Crankcase Ventilation (PCV) Tube

When my ’13 Chevy Malibu started idling rough and felt sluggish under light load, I figured it was time to swap the PCV valve. I opted for the genuine GM Parts 12642631 Positive Crankcase Ventilation valve, and I’m glad I did—it was a straightforward upgrade that brought my engine back to life.Installing it took just a few minutes: I popped the hood, pulled the old valve out of its grommet, and pressed the new one in—nice and snug, just like the factory part. No wiggling or force needed, and it sealed right away. I didn’t even need special tools; a flathead to pop the hose clip was all it took.Close to 200 miles later, I’ve noticed smoother idling, steadier vacuum readings, and peppy response when I ease on the gas. No hesitation, no rough chugs—just a calm, idle hum like a car that’s well-maintained.The valve itself feels rugged—sturdy plastic with those little guard ribs on top that keep dust and grit out. Comes labeled with the GM part number, so there’s no second-guessing whether it’s the right piece. It’s a small part with a big payoff.If you’re experiencing rough idle, check engine light, or just powering through regular maintenance, this OEM-grade PCV valve slides in and does exactly what it should without complications. Easy install, perfect fit, and noticeable smoothness—this one’s a solid win.

Fits perfect

Perfect fit for 2013 Chevy Malibu . Oem part.

Perfect fit

This was exactly what it said it was. The part fit on the car without any problems at all.

MUCH CHEAPER THAN PURCHASING THROUGH DEALERSHIP AND THE EXACT SAME PART

Perfect fit

No more vacuum leaks ( cured P0300 random misfire code)This part can be easily damaged when removing the plenum. It should be rigid with NO movement or spin of the " arms from the center "...if it is..it needs to be replaced to prevent vacuum leaksAlso install both "ends" at the ( 2 PCV valve on the top of engine) same time until you hear the click..precise fit so don't try to install one side & then the other as lack of "slack" will prevent this and may cause damage, so don't force it .Then finally slide the center on the plenum tube until clicks.Done.