PCV replacement on my IS350
#1
Driver
Thread Starter
PCV replacement on my IS350
While I had the wire loom loose on the drivers side after replacing the spark plugs I decided to replace the PCV valve. By the way, the PCV valve takes a 19mm wrench.
I removed this bolt and it's bracket to give myself just a little more room when working back there as well as loosening the zip tie catches all along the wire loom when doing the spark plugs. However I was having a heck of a time getting any wrench back there (I don't have stubbies) let alone any leverage to turn the PCV.
Then I remembered my daughter had bought me some crow foot wrenches last year for Christmas and I had completely forgot about them. After digging through all my junk I found them. Below are the Harbor Freight specials that I used which made removing the PCV so much easier. I found that my PCV was pretty sticky even at 66,124 miles so I'm glad I replaced it.
After plugs and PCV the car feels peppy again.
I removed this bolt and it's bracket to give myself just a little more room when working back there as well as loosening the zip tie catches all along the wire loom when doing the spark plugs. However I was having a heck of a time getting any wrench back there (I don't have stubbies) let alone any leverage to turn the PCV.
Then I remembered my daughter had bought me some crow foot wrenches last year for Christmas and I had completely forgot about them. After digging through all my junk I found them. Below are the Harbor Freight specials that I used which made removing the PCV so much easier. I found that my PCV was pretty sticky even at 66,124 miles so I'm glad I replaced it.
After plugs and PCV the car feels peppy again.
Last edited by Soledad; 12-29-16 at 06:13 AM.
#3
Driver
Thread Starter
Correct. 19mm crow foot, plus long extension, unscrew and replace. Done. You may not even need to remove the small bracket like I did but I had already done it when I was trying to use a normal wrench. I did try a few of my thin wall sockets but the intake manifold is just to close to the PCV. And I did try a 19mm Craftsman Max Axess socket and it did fit but I couldn't get the wrench on it, again due to the intake manifold. The crow foot makes removing the PCV pretty easy.
#4
You can manipulate a regular open end wrench in there with a lot of elbow grease and swearing. But you had the right idea, a Crow Foot is the way to go for sure.
At 235,000km, mine was still fine. I pulled it out because I have been seeing some oil consumption, about 1 later every couple thousand KM. Cleaned it with some brake clean just because it was out, but it felt fine.
At 235,000km, mine was still fine. I pulled it out because I have been seeing some oil consumption, about 1 later every couple thousand KM. Cleaned it with some brake clean just because it was out, but it felt fine.
#5
Moderator
iTrader: (10)
Just replaced mine for the second time yesterday. Removed the same bracket to gain enough access to use my box end wrench. Though this PCV had ~50k miles on it, the thing rattled around quite easily and probably was good for another 50k. But for <$10, why not! Also did new plug too!
#6
Driver School Candidate
Thank you Soledad, All. I have a 2006 IS250 sucking oil now (have to refill 1 liter approx for every 1000 kms. Would this be the right tools?
19mm crow foot,
6 x 3/8 in. dr Locking Extension Bar
3/8 in. dr x 15 in. Ratcheting Breaker Bar
My mechanic says "this PCV need not be replaced", "it's hard to access... bla bla bla" so doin it myself.
Thanks,
Ed
19mm crow foot,
6 x 3/8 in. dr Locking Extension Bar
3/8 in. dr x 15 in. Ratcheting Breaker Bar
My mechanic says "this PCV need not be replaced", "it's hard to access... bla bla bla" so doin it myself.
Thanks,
Ed
Last edited by Drawde; 07-16-17 at 01:28 AM. Reason: incorrect list of tools
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#8
Driver School Candidate
Ok, after 1000 kms, the PCV valve replacement appear to have helped improve gas consumption, now at 10.8 litres per 100 km from 12-13 liters per 100 kms. Oil consumption was the same - still had to top-up engine oil about a litre ++.
Last edited by Drawde; 09-24-17 at 08:25 PM. Reason: add new detailed info
#9
PCV valse vent hose
Just replaced mine for the second time yesterday. Removed the same bracket to gain enough access to use my box end wrench. Though this PCV had ~50k miles on it, the thing rattled around quite easily and probably was good for another 50k. But for <$10, why not! Also did new plug too!
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