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PCV Valve Easy Removal

98K views 86 replies 50 participants last post by  ronjenx  
#1 ·
This is how I easily removed and installed the PCV valve:

Removing the coil pack is easy to do, and greatly improves access to the PCV valve.
Disconnect all six plug wires at the coil pack. The stock wires and the coil pack terminals are numbered, so no need to worry about marking them.
Remove the two bolts marked with yellow arrows.
Leave the main electrical plug, marked with red arrow, connected.
Rotate the coil pack up and out of the way. It will tuck in behind some of the wires, and stay there.

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Now that you have plenty of room to work, remove the clamp from the PCV hose. Pliers will do it, but a hose clamp tool designed for this type of clamp will make it easier.

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You now can see the PCV valve recessed into the adapter.

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Put a zip tie on the neck, as pictured. Grab the zip tie with some pliers. Rest the nose of the pliers on the intake manifold, as in the picture.

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Pry up with the pliers. The Valve comes out so fast and easy, it actually may make a "pop".

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Place the new valve in the adapter. It will be hard to push home, so get a socket just big enough to fit in the adapter. The socket wall should be thick enough so it will push the valve, and the rubber seal.
An extension on top, long enough to stick above neighboring lines, will allow you to push or tap the valve home.

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Here is a pic of the valve after seating it with the socket.
Reconnect the hose with the clamp, to the PCV adapter.
Reinstall the coil pack, connect the wires to the appropriate terminals.
When you push the plug wires onto the terminals, make sure you hear them snap into place.

Remove all tools from the engine bay.

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Here is a link to how the valve works:

http://www.jkowners.com/forum/showthread.php?t=35277
 
#49 · (Edited)
One step not mentioned in this write-up is to make sure your jeep is warmed up first. I tried doing this when my jeep was cold before it started raining and the zip-tie broke. So I tried needle nose pliers standing on the engine still the valve wouldn't budge. tried prying it where the hole was no luck, just started rippen the steel:flipoff: Then it started to drizzle so i put everything back together. Next day I came home from work, popped the hood, removed the coil and pulled it right out without a problem since the engine was still warm from the trip home. Then I enjoyed my victory beer:gluging:
 
#50 ·
Wish I would have known this... I ended up drilling a hole straight through the metal part, stuck a steel cable through it stood on the engine compartment and dead lifted it till it popped out.... Almost fell off the heep in the process and the bottom part of the rubber boot broke off in there... Had to pry it out with a flat head after... Jeep has 66k on it..
 
#52 · (Edited)
All my zip ties broke.. I had previously removed the air box and tube so I climbed on in, stood on the axel housing and pulled like a sunova till she gave up!
72k original PCV

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-Nathan
 
#53 ·
Just did mine tonight, Had it nice and warm after a 20 minute drive, i let it cool down 30 minutes. I just removed 1 bolt from the coil and loosed the other to spun it out of the way keeping all the wires connected.

I couldn't get the ziptie to stay on since it was a little oily so i just stuck a needlenose in and prayed up while standing on my passenger tire. It popped right off after a few attempts and wiggles.

I got the part at Napa a little over $10 after taxes. I just passed 60k and noticed oil consumption has been high and the idle rough at times, I am hoping this helps!
 
#55 · (Edited)
I noticed a knocking and checked my oil and there was almost 0. I just did a oil change in Jan 12. I only have about 11K (its a 07) due to multiple back injuries/ surgeries. I only drive to PT and gym which is maybe 8 miles a day. Could my PCV be bad? I added about 5 qts today of 5W-30 Mobile 1 synthetic. No oil leaks under jeep and there does not seem to be an excessive amount of exhaust either. Figure I might try to replace the PCV before I go get raped at the local dealer. Any suggestions are welcome. Thanks- Hurley
 
#56 ·
Did mine today. The zip tie method was a no go. The thing was in there just too damn tight. After about an hour mangling the nipple, I actually had to stand over the thing with one foot on the top of the firewall and the other on the front bumper, grab it with channel locks and tug with all my strength. It finally gave up and popped out sending me in the air so I had to do a pivoting ballet move and leap to the ground.

Installing the new one took about 30 seconds. So far, so good.
 
#57 ·
i just did mine too. purchased a factory PCV for ~$7

I unbolted the coil pack and just pushed it out of the way.
Tried using HF zip ties was a no go as well...
Ended up using some channel-locks holding the top of the valve (replacing it anyways...), then tapped the bottom of the pliers with a hammer.
Saved the uberman strength for another day
 
#58 · (Edited)
Pulled my PCV valve today and tried to replace it with a NAPA part, no. 2-9555. I cannot get the sucker to seat back in.

Anyone had this issue with the NAPA part? Maybe I just need to go with a MOPAR part...
 
#66 ·
Ok, so, for those of you who've replaced their PCVs, did the new one cure your issues?
 
#67 ·
Anyone know the part number for the NAPA replacement PCV valve? And for those who have used this part, all good?
 
#69 ·
  • Read the OP and a few follow up posts commenting on great success
  • took off from work early so I would have some daylight
  • popped the hood and let the jeep cool for an hour while I played with the kids
  • broke 16 wire zip ties
  • banged the hell out of my knuckles
  • mangled the ever living chit ouf of the PCV valve with vice grips
  • hour later, put everything back together
  • re-strained my back with 8 bulging discs
  • popped a vicodin and read the rest of the posts while laying flat on my back
  • next morning $25 co-pay to the chiropractor
  • left work early
  • pulled the damned thing out as soon as I got home and had it buttoned back up within ten minutes.
  • Knowing I did it myself and 'saved' money . . . priceless

any chance the OP can edit the first post to include the jeep should be warm? :)
 
#71 ·
Like other, I broke multiple zip ties as well. Ended up gripping the PCV valve with needle-nose vise grips, locking a second pair of vise grips around the first, and prying up with a big screw driver against the valve cover...:cwm13:



It FINALLY came out!
 
#72 ·
If you can't pull out the pcv valve using pliers or the zip tie method, don't bother trying to wrestle it out. Set up leverage using a vice grip with a screw driver through the vice grip and resting on the top of the manifold as follows (don't leverage using the plastic tube that the pcv valve sits in):





 
#73 ·
Thanks for the write up, just replaced mine at 70k. Unbolted the coil pack out of the way, first zip tie broke, used a beefier zip tie 2nd time around and jiggled it out, came out pretty easily. :) Oil was definitely dirty in the valve. Currently the Jeep burns about a quart every 1k to 1.5k miles. Cleaned the throttle body while I was at it.
 
#83 ·
if my Jeep burned that much oil, I would never perform an oil change. just change the filter every 5k and keep adding oil. IMO that is ridiculous and unacceptable. if I knew these 3.8L engines were doing this before I bought my Jeep, I would have never bought it.
 
#74 ·
Just wanted to say thanks for the info. This thread is the first thing that comes up on a search for wrangler PCV valve.

Worked great for mine.

I didn't have to take off the coil pack, just pulled the wires on the one side.

Zip tie trick worked great, "POP!" right out just like he said! Make sure to pay attention to the people who said to make sure the engine is hot before doing this, it will soften the rubber seal and expand the tube where the valve resides.


Hardest part for me was getting the hose clamp off, I could NOT get a grip on it with needle nose, and didnt' have a proper clamp pliers. Finally I used a screwdrver to rotate the clamp around to where I could get a good grip, then zip-tied it open so I could drop it back on when I was done and snip the tie with a wirecutter after it was in place.


The old valve seemed to be in fine shape, but here's hoping the new one might fix some of the oil burning and rough idling problems.

thanks again! great thread! :beer: