ronjenx

We are finding it happens a lot sooner than that, too.
It may be good to replace it early just to avoid the hardening of the rubber.

deathwagon

Well that was a fun 10 minute project that took an hour. I replaced my PCV valve at 85K miles, and I'm pretty sure the previous owner never changed it based on the condition of the one that came out.

I tried the zip tie method, the multiple vise grip method, the vise grip plus hammer method. All to no avail. The top of the old valve was starting to collapse from all of the abuse, and I was concerned that I'd rip the top right off. So here's what I ended up doing.

I inserted a bolt onto the top of the valve to keep it from collapsing. Then I installed a hose clamp to give it some additional reinforcement. Then I clamped one set of vice grips as shown (photo was taken after the old valve was removed)



I then clamped another set of vice grip to the handle of the first set of vice grips at a 90 degree angle. Rotated the hood all the way up so it was resting on the roof of the jeep. I placed a piece of 2x4 on the cowl just in front of the windshield. Then I used a big, solid wooden dowl as a lever under the 2nd set of vice grips. Even then I had to exert a rediculous amount of force before it popped out.




The rubber sleeve on the old valve was rock hard and cracked:





When I reinstalled the breather hose, I replaced the retarded factory hose clamp with a standard threaded hose clamp.

So this little job is now on my 20K maintenance list. Hope this helps.

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ronjenx

Great method and photos, deathwagon!

But holy cow, it's amazing such a little part takes such extreme measures.

G36FF

I just stumbled upon this write-up over the weekend, thanks a ton! My 07' has been drinking oil lately (91,000 miles) and I'm hoping this helps at least a little.

The zip ties didn't work for me either. I put a bolt inside the neck of the valve like others did to save it from collapsing, clamped a vise-grip on there, and used a screwdriver between the space in the vise-grip to pry it off. Took only a few minutes to switch out, thanks again!

mbanik

I just wrestled mine with Robostrips ... tough little sucker to pull out.

big c

You must not be pulling out right lol

Red Rubicon

I just changed my PVC valve on my '07. I referenced this write-up & all the tips to get the job done. I ended up using the bolt method. I held the bolt in the valve with vicegrips in my left hand, & using the leverage of the intake, I pried up with set of basic pliers in my right on the bolthead. That sucker popped right out.
My valve seemed just fine after all those years. I have just under 69,000 miles on it.

Thanks again to all of you who share great ideas.

Lacasmi117

Did this yesterday, Jeep has 150K on it, eats up a bit of oil, but nothing crazy like i have been reading. I have always used 10w-30 since first oil change mixed in with Lucas Oil. Great write up, zip tie worked for me; valve was still clicking and good, but i figured hec at 150K replace it...

Oatz328

Didn't work for me. I tried several different types of zip ties, but they all snapped. I guess that PCV valve was really in there. 6 years old and never been changed. I finally got it out after 3 beers and some 45 degree pliers. Wasnt pretty, but it's done. Using a socket to drive the new one in worked awesome.

ronjenx

Your experience seems to be typical.
I've done several pcv valves and they all came out with zip ties. None had been in for 6 years, though.