fram pcv for 1zz-fe

[cutter]

I threw in a fram pcv when I needed a few bucks to make the total price valid for an AAP coupon. I took out the PCV that existed in the car, it looked caked with oil. Decided to replace. The fram pcv had the same threads but a larger bolt size for removal. Before installing the fram, I did a blow test. Air passed through from the engine side... aaaand air passed through from the hose side. Albeit it was half the flow, air still went through the wrong way. I cleaned off the oem PCV by swirling it in naptha and isopropyl. Blew air through it and yep, air flow good from engine side, no air at all from the hose side. Maybe I got the one lemon in thousands, but really?

 

[PRND3L]

I've had the same experience with a new Fram pcv for a chrysler/mitsu 3.0

 

[mikered30]

The oem parts is only 2 or 3 dollars more and they make different thread sizes for that engine. I would return that junk and give the dealer your vin and get an oem part.

 

[beast3300]

Aftermarket PCV valves are such junk. On the Regal board people reported increase in gas mileage (I'm sure slight) with a OE PCV. Just sayin'

 

[mechtech2]

PCV valves work on pressure - how much vacuum is there, and how much flow.
Some are lightly spring loaded.
Some seal with atmospheric pressure, and some seal tight only with a backfire situation.
The new 'faulty' one may actually be working better than the old one.
No way to tell. How does it run?

In general, I like the best PCV valves, thermostats, and brake pads available. Very smart thing to do.

 

[mechanicx]

I'd rather clean and reuse an OE PCV valve then use a new aftermarket. Make that I'd rather reuse a dirt OE then a new aftermarket valve. And like was mentioned, usually you can get the OE for only a few dollars more. Although your valve might be so gunked up that it needs replaced.

I think some valves are suppose to allow some reduce flow when "closed" (when you were blowing through the hose side)but aftermarket valves still can allow too much flow and sometimes cause increased oil consumption.

 

[cutter]

Originally Posted By: mechtech2
PCV valves work on pressure - how much vacuum is there, and how much flow.
Some are lightly spring loaded.
Some seal with atmospheric pressure, and some seal tight only with a backfire situation.
The new 'faulty' one may actually be working better than the old one.
No way to tell. How does it run?

In general, I like the best PCV valves, thermostats, and brake pads available. Very smart thing to do.


The idea of air going backwards in a PCV system just spits in the face of what it was designed for.

Originally Posted By: mechanicx
Although your valve might be so gunked up that it needs replaced.


At 84k on the valve, it cleaned up nicely in a solvent bath. Nice enough to wrap my lips around it at least.

 

[simple_gifts]

Originally Posted By: mikered30
The oem parts is only 2 or 3 dollars more and they make different thread sizes for that engine. I would return that junk and give the dealer your vin and get an oem part.


+1; The one for my !echo! was $7;