PCV Valve questions
PCV Valve questions
Where is it located on my '99 GS400 engine?
Do I have to remove anything to get to it?
Does it make much difference what brand PCV valve I use?
Should I replace the grommet at the same time (1999 with 71K miles)?
Do I have to remove anything to get to it?
Does it make much difference what brand PCV valve I use?
Should I replace the grommet at the same time (1999 with 71K miles)?
Lexus Champion
Joined: Mar 2004
Posts: 1,973
Likes: 10
From: Arizona
Toyota dealer for the part... best price with the right fit.
I would replace the rubber grommet at the same time Gently pry out the old one, keeping a hold on it so not to drop it inside the valve cover. Hook it with a piece of coat hanger while removing .
After slipping down the finger clamp, pry the rubber tube from the valve, using minimum rotating motions.
A "light" coat of dish detergent and water on the new seal can help with the seal reinstallation and the valve installation. Dry off any excess.
I would replace the rubber grommet at the same time Gently pry out the old one, keeping a hold on it so not to drop it inside the valve cover. Hook it with a piece of coat hanger while removing .
After slipping down the finger clamp, pry the rubber tube from the valve, using minimum rotating motions.
A "light" coat of dish detergent and water on the new seal can help with the seal reinstallation and the valve installation. Dry off any excess.
Lexus Champion
Joined: Mar 2004
Posts: 1,973
Likes: 10
From: Arizona
Researching indicates Toyota recommends every 30,000 miles.. I couldn't locate a Lexus specification.
I clean mine once a year with "Orange Blast" citrus degreaser and cleaner. Water based, it works much better than a mineral solvent. No oily residue after canned air dry.
I coat the used grommet and PCV valve with "Aerospace 303 rubber protectant" prior to reinstallation. This keeps it pliable.
I clean mine once a year with "Orange Blast" citrus degreaser and cleaner. Water based, it works much better than a mineral solvent. No oily residue after canned air dry.
I coat the used grommet and PCV valve with "Aerospace 303 rubber protectant" prior to reinstallation. This keeps it pliable.
Racer
Joined: Jul 2001
Posts: 1,967
Likes: 17
From: Orange County, California
Even if it doesn't rattle there's no need to replace the OEM PVC valve.
Many replacement PVC valves are made of cheaper plastic, but the stock valve is made of metal that is easily cleaned to like-new condition with a little solvent.
That grommet does need replacement from time to time, though.
The local stealership wants $6.80 for that rubber ring - anyone know of an alternative source?
Many replacement PVC valves are made of cheaper plastic, but the stock valve is made of metal that is easily cleaned to like-new condition with a little solvent.
That grommet does need replacement from time to time, though.
The local stealership wants $6.80 for that rubber ring - anyone know of an alternative source?
Lexus Fanatic
Joined: Aug 2002
Posts: 7,379
Likes: 24
From: Florida
Originally Posted by PERRYinLA
That grommet does need replacement from time to time, though.
The local stealership wants $6.80 for that rubber ring - anyone know of an alternative source?
The local stealership wants $6.80 for that rubber ring - anyone know of an alternative source?
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CL Community Team
Joined: Apr 2004
Posts: 17,329
Likes: 210
From: Miami, Florida
I have used one of those orange cleaners on mine just as Tammy mentioned...and they are good. I was using some petroleum-based cleaners before my uncle said I was going to get deposits...he was right, but I have found one carburator cleaner sold down here that did not have that issue. It can make a definite difference in performance if not cleaned and/or changed.
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Intermediate
Joined: Feb 2001
Posts: 261
Likes: 0
I'd like to open this up to the GS300 crowd as well... I believe it is located under the engine cover... but would greatly appreciate any pics that someone could share before I go hunting around for it. Thanks!
Driver School Candidate
Joined: Aug 2006
Posts: 2
Likes: 0
From: AZ
It's located at the rear of the intake valve cover (drivers side) just in front of the firewall behind the throttle body for GS300, and on the left (drivers side) valve cover towards the front of the engine facing the intake manifold.
Last edited by Bolter; Aug 24, 2006 at 02:24 PM.
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