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2009 Forester Premium manual 5 speed
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Discussion Starter · #1 ·
I have an 09 Forester Premium manual trans with 135000 miles. The PCV has never been touched, is there a way to check it, is it worth just changing it. any thoughts?
 

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2019 Forester Sport CVT
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316 Posts
Checking whether or not the PCV is functioning is simple.

1) Warm up vehicle to operating temp.
2) Locate PCV and detach hose. Make sure hose stays away from any moving parts.
3) Start vehicle again and place finger over the PCV nipple. You should feel a vacuum. If you do not, just replace it. If you do feel a vacuum, then check the PCV ventilation hose(same hose you detached). Hose could be clogged.

NOTE: I would replace the PCV reguardless whether it works simply due to the mileage of your Foz. Not sure what the service manual states for that year as far as how often one should change it out, but I replace my 2003 Toyota RAV4’s PCV every 30k. She’s old with 155k original miles.
 

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2009 Forester Premium manual 5 speed
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5 Posts
Discussion Starter · #3 ·
Thank you, Never done this before, any surprises, I don't here a rattle in the new one and use pipe tape or anti seize
 

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2012 XT Touring 4EAT
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3,751 Posts
<snip>NOTE: I would replace the PCV reguardless whether it works simply due to the mileage of your Foz. Not sure what the service manual states for that year as far as how often one should change it out, but I replace my 2003 Toyota RAV4’s PCV every 30k. She’s old with 155k original miles.
+1 on this ^^^^^. The 'rattle test' is fun to do but simply replacing the PCV valve is a much better choice. I might go more than 30k, but PCV valves are not that expensive. If the valve gets stuck (either open or closed) it can do serious mischief on your engine.
 

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2011 Forester
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119 Posts
Ditto! Just be happy it’s a simple valve. You should see my volvo PCV system. It’s a maze of tubes and elbows and a container. Not to mention to replace it, you have to remove air intake and replace gasket, fuel rail etc... it’s a fun day of work for a shade tree mechanic. And it’s $100 US for aftermarket parts or almost $200 for OEM. Hardest part of the Forester PCV replacement was removing the hose!



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