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Removing and Installing PCV Valve

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Old 01-21-2012, 04:08 PM
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Originally Posted by ronjenx
There is the possibility the NAPA valve is slightly smaller than the OEM valve.
I wonder if it has the same flow and spring pressure as the OEM valve.
I might get one and dissect it for comparison. I've recorded all the numbers for the OEM valve.
i sized them up when i got the factory one out. They looked exact by eye. I also noticed that the internal part had a 24 stamped on it. The napa one did as well. After i started it up and let it idle, i noticed the difference. We will see when i take it for a drive. Thanks for the write up!
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Old 01-25-2012, 03:48 PM
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Just special ordered n picked up mine today. From oreillys auto parts. 9.99 or 10.99 dont remember. Part # on the pic will install next weekend let ya know how it goes. Hope it helps with the oil consumption
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Old 01-25-2012, 03:50 PM
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Sorry pic didnt attatch, this is the pic with the part#, also had 24 stamped on the inside. PCV 555. I beleive if u order the part monday- thursday they will have it the next day
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Old 01-25-2012, 03:53 PM
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Originally Posted by GreenJK07

i sized them up when i got the factory one out. They looked exact by eye. I also noticed that the internal part had a 24 stamped on it. The napa one did as well. After i started it up and let it idle, i noticed the difference. We will see when i take it for a drive. Thanks for the write up!
What kinda difference?
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Old 01-25-2012, 06:09 PM
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I compared the NAPA 2-9555 to an OEM pcv valve.

The NAPA appears to be a valid replacement.

Overall dimensions are the same.
Spring tensions are equal.
Orifices are the same size.
The dimensions and profile of the plug inside are the same.
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Old 01-25-2012, 06:18 PM
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Originally Posted by ronjenx
I compared the NAPA 2-9555 to an OEM pcv valve.

The NAPA appears to be a valid replacement.

Overall dimensions are the same.
Spring tensions are equal.
Orifices are the same size.
The dimensions and profile of the plug inside are the same.
Sweet. Glad I got that one!!!!! Thanks for the information. I was kind of worried. I still have a sputtered idle after driving my rig this week. Has to be my plugs as I removed and cleaned the throttle body and replaced the PCV valve. That's the project for this weekend.
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Old 01-31-2012, 05:43 PM
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Just read up on this thread (thanks to the advice of GreenJK07) and I guess I'll be doing this this weekend if all goes well. Thanks for the write up and all the info on this forum.
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Old 01-31-2012, 05:51 PM
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Originally Posted by CCTEX84

What kinda difference?
The difference was a smoother idle than I had before.
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Old 01-31-2012, 05:51 PM
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Originally Posted by JK-UTE
Just read up on this thread (thanks to the advice of GreenJK07) and I guess I'll be doing this this weekend if all goes well. Thanks for the write up and all the info on this forum.
No problem! Glad to help out a fellow jeeper!
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Old 02-03-2012, 01:53 PM
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just did this on mine. never could get the zip tie trick to work. they kept breaking. so i used pliers and some leverage on the plastic bit and finally worked it out. do they make a tool for this? just curious as i cant imagine that Jeep mechs do it this way.
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