PCV valve replacement frequency?
Thread Starter
Pro
Joined: Dec 2013
Posts: 627
Likes: 181
From: west coast of Canada
PCV valve replacement frequency?
I've got a bone stock 2002 Vette, 5.7 litre. It's got just over 50,000 km. I have no history on the car. I bought it at a used car lot (it was mint, I couldn't walk away after I laid my eyes on it) At what interval would you replace the PCV valve?
Thanks in advance.
Thanks in advance.
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Team Owner
Joined: May 2001
Posts: 87,302
Likes: 1,583
From: Western NY
To be on the safe side, yeah, I'd check to see if yours "rattles". As previously mentioned, be careful in handling the hoses, then just spray a small bit of throttle body cleaner into it, let it dry, and you'll be good to go. I'm the original owner of my C-5 (2001), and have a little over 30,000 miles on it. I've removed the PCV valve twice, and hit it with a shot of TB cleaner, both times. It still rattles just fine.
Thread Starter
Pro
Joined: Dec 2013
Posts: 627
Likes: 181
From: west coast of Canada
To be on the safe side, yeah, I'd check to see if yours "rattles". As previously mentioned, be careful in handling the hoses, then just spray a small bit of throttle body cleaner into it, let it dry, and you'll be good to go. I'm the original owner of my C-5 (2001), and have a little over 30,000 miles on it. I've removed the PCV valve twice, and hit it with a shot of TB cleaner, both times. It still rattles just fine.
Thread Starter
Pro
Joined: Dec 2013
Posts: 627
Likes: 181
From: west coast of Canada
Looks like it's working like it should. I'm adding a vacuum check to the rattle test.
Team Owner
Joined: May 2001
Posts: 87,302
Likes: 1,583
From: Western NY
I just checked that the PCV hose has vacuum. This was between the PCV valve and the intake manifold. That should mean that the PCV valve not only rattles but is also breathing. While testing for vacuum, the motor runs rough and smooths out as soon as I reconnect the hose.
Looks like it's working like it should. I'm adding a vacuum check to the rattle test.
Looks like it's working like it should. I'm adding a vacuum check to the rattle test.
