Can't pull out the PCV valve - HELP
BF Guru
Joined: Dec 2006
Posts: 6,594
From: Fort Worth,Texas
Oh, I can understand because I once had the same situation. The rubber grommet hardens with age and becomes almost impossible to remove easily. I had to carefully slice the grommet to remove the valve and then used pliers, vise grips, etc to remove the grommet. Be careful to not let rubber chips fall into the manifold cover and purchase a new grommet and valve before you start the procedure.
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Starting Member
Joined: Aug 2009
Posts: 102
Oh, I can understand because I once had the same situation. The rubber grommet hardens with age and becomes almost impossible to remove easily. I had to carefully slice the grommet to remove the valve and then used pliers, vise grips, etc to remove the grommet. Be careful to not let rubber chips fall into the manifold cover and purchase a new grommet and valve before you start the procedure.
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Starting Member
Joined: Aug 2009
Posts: 102
An update on this issue.
Yesterday, I looked at this little PCV valve again. After a long time it seems that the stuff I sprayed on it last year did its magic. With a slot screwdriver I was able to pry the valve out, after taking off the air intake for access. The valve is not actually a valve at all, it is just a steel tube with a small orifice at the bottom of it to limit the amount of air it lets in from the crankcase! There is nothing there to rattle as in most PVC valves.
Anyways, the tube was corroded badly both on the upper half that the plastic tube connects to and the lower half that goes into the engine. Once I took it out, I simply soaked it in rust remover (CLR) for a while, then took some sandpaper to it and polished it up nice and clean. Then sprayed it with brake cleaner to clean out the inside thoroughly. It looked as good as new. Lubricated it a little to make it easier to tap back on and pushed the tube back on it. All is good now.
Hopefully this will help others with the same issue.
Yesterday, I looked at this little PCV valve again. After a long time it seems that the stuff I sprayed on it last year did its magic. With a slot screwdriver I was able to pry the valve out, after taking off the air intake for access. The valve is not actually a valve at all, it is just a steel tube with a small orifice at the bottom of it to limit the amount of air it lets in from the crankcase! There is nothing there to rattle as in most PVC valves.
Anyways, the tube was corroded badly both on the upper half that the plastic tube connects to and the lower half that goes into the engine. Once I took it out, I simply soaked it in rust remover (CLR) for a while, then took some sandpaper to it and polished it up nice and clean. Then sprayed it with brake cleaner to clean out the inside thoroughly. It looked as good as new. Lubricated it a little to make it easier to tap back on and pushed the tube back on it. All is good now.
Hopefully this will help others with the same issue.
Starting Member
Joined: Sep 2024
Posts: 1
After looking long and hard for the location of the PCV valve on my 2005 Jimmy (Canada only) I finally found it tucked away just slightly towards the driver's side next to the air intake duct fairly deep under some other tubes and hard to get at. I removed the air intake duct and the cap atop the throttle body to give me somewhat easier access. I pulled on it with all my might and the thing would not budge. My son tried it and he could not budge it either. I cleaned the throttle body while we were at it, but cannot take the PCV valve out. The only thing that would come off is the L-shaped valve tube off the fitting at the other end, but nothing would give at the PCV valve end. The truck has about 125,000 miles on it and the PCV valve has never been serviced or changed. Could it be stuck on that badly with carbon? I have never seen anything like it! Usually PCV valves com out like butter in the summer.
Has anyone had this issue with a 2005 Jimmy or Blazer? How do I get the valve out to check it/replace it?
Has anyone had this issue with a 2005 Jimmy or Blazer? How do I get the valve out to check it/replace it?
use vice grips I had the same issue with my 05 avalanche and the valve for your is the exact same I got it out with the vice grips no problem
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