How do you know when its time to change a PVC valv
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Originally Posted By: Lakersguy
How do you know when its time?
Sometimes you don't. The rattling works if the ball clogs and sticks, but the valve can fail in other ways. Best to change at a mileage marker and continue with that interval. Look for blow by and valve cover leaks. The PCV hose and grommet can need attention as well as the valve.
How do you know when its time?
Sometimes you don't. The rattling works if the ball clogs and sticks, but the valve can fail in other ways. Best to change at a mileage marker and continue with that interval. Look for blow by and valve cover leaks. The PCV hose and grommet can need attention as well as the valve.
Quote:
Look for blow by and valve cover leaks
On my old Dakota that's what I have to do, rattle doesn't seem to demonstrate much.
John
Look for blow by and valve cover leaks
On my old Dakota that's what I have to do, rattle doesn't seem to demonstrate much.
John
If it's been a while since you changed it and you are bothered enough to post your question here... it's probably time to drop in a new one.
The spring behind the ball inside (if equipped) can become week overtime from the heat in the engine. I would just make it a regular replacement item when you do your spark-plugs. It does so much and can cause quite the headache if not working properly. It's super cheap to replace on most vehicles anyways...
Originally Posted By: Papa Bear
If it's been a while since you changed it and you are bothered enough to post your question here... it's probably time to drop in a new one.
A couple of thoughts:
Have you looked at your owner's manual, if you plan on keeping your car a long time then I would change it once a year or every 2 years.
I would not buy a cheap 1, it is best to get 1 from the dealer as the cheap ones are no good. A bad PCV can cause so many problems that it is cheaper to replace it more often.
Some people may think that I am crazy to change mine on my El Camino every year, but I have 365,000 miles on my small block chevy so I must be doing something right.
When a PCV gets clogged it can lead to:
1) Oil Leaks
2) Crud in your engine
3) Engine Wear
I do not believe in shaking the PCV to see if it works because I cannot tell if the spring inside is going weak.
If it's been a while since you changed it and you are bothered enough to post your question here... it's probably time to drop in a new one.
A couple of thoughts:
Have you looked at your owner's manual, if you plan on keeping your car a long time then I would change it once a year or every 2 years.
I would not buy a cheap 1, it is best to get 1 from the dealer as the cheap ones are no good. A bad PCV can cause so many problems that it is cheaper to replace it more often.
Some people may think that I am crazy to change mine on my El Camino every year, but I have 365,000 miles on my small block chevy so I must be doing something right.
When a PCV gets clogged it can lead to:
1) Oil Leaks
2) Crud in your engine
3) Engine Wear
I do not believe in shaking the PCV to see if it works because I cannot tell if the spring inside is going weak.
Originally Posted By: ZZman
If you shake it and it doesn't rattle.
They are pretty cheap to buy. Changing it about every 30,000 miles would be safe.
What he just said.
If you shake it and it doesn't rattle.
They are pretty cheap to buy. Changing it about every 30,000 miles would be safe.
What he just said.
Somes cars like a Honda use a spring coiled around the plunger so it will NOT rattle.
Can you put your finger over it while the car is running & see what kind of vacuum it pulls?
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