OCV leak - Mazda 6 Forums : Mazda 6 Forum / Mazda Atenza Forum
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post #1 of 7 (permalink) Old 02-25-2017, 04:06 AM Thread Starter
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OCV leak

Hi folks,

Recently I noticed that there is a bit of leak coming from the Oil Control Valve (some call it Solenoid Valve). At first diagnose, a Mechanic advised me to just replace the seal which is sold separately and it's cheap. Did replace the seal and had to replace the valves cover's gasket as well. Turned out the leak is coming from the valve it self and I read somewhere else that it's due to the high pressure inside the engine which leads to these sort of issues. Fortunately, the leak is not that massive and no Check-Engine light has come on yet.

The question is, shall I leave it as it is and wait till it becomes worse or the Check-Engine light comes on, or shall I replace the OCV ASAP?

Any advice is highly appreciated.

Thanks,
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post #2 of 7 (permalink) Old 02-25-2017, 07:44 AM
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Small leaks never get smaller on their own. I'd replace it -- not on an emergency basis, but I would definitely change it out at the next reasonable opportunity.
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post #3 of 7 (permalink) Old 02-25-2017, 09:00 AM
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Oil never belongs outside the engine. The sooner you fix it the better.

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post #4 of 7 (permalink) Old 03-01-2017, 09:52 AM Thread Starter
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Thank you guys for your advice.

I'll have it replaced soon.
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post #5 of 7 (permalink) Old 03-26-2018, 09:02 PM
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Hmm, just noticed I've got a bit of an oil leak around what I believe is the OCV as well. Is the part you replaced what I'm pointing to in the attached pic? Do you happen to know the part # and about what the part cost?

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Last edited by dasrider; 03-26-2018 at 09:09 PM.
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post #6 of 7 (permalink) Old 07-12-2018, 09:58 PM
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So I may have the same problem that you @Scooby had. 1. Is this the OCV? 2. Does this look like a slight leak to you all? I wiped everything down yesterday but today I'm seeing this. To me it looks like some oil is seeping up past the gasket.

OCV leak-20180712_181735-1-.jpg

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post #7 of 7 (permalink) Old 07-14-2018, 09:03 AM
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That is what it looks like to me as well.


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