Pcv failure?
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10th Gear
Joined: Jan 2026
Posts: 14
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Pcv failure?
I just replaced my pcv valve because I knew it was probably NEVER changed. Got one from Autozone(prob my issue here) and a new grommet. The old grommet was ROCK HARD and I broke half of it inside the cover but was able to get rest out from what I could see. I also made sure I could see the gas come out from there perfectly fine. But after I replaced it the next day on the second start of the day a cloud of smoke just comes out from under the car. And I thought it was just moisture but it did it again today. Am I tweaking and it’s just moisture or a faulty part?
Instructor
Joined: Jan 2018
Posts: 965
Likes: 299
From: WA
Did the cloud of smoke have an odor, and does it still happen? My understanding is that if some of the grommet fell into the valve cover there is a baffle to catch it to prevent the remnant from doing any harm to the valve train etc.
Thread Starter
10th Gear
Joined: Jan 2026
Posts: 14
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it smells like burnt plastic. It only happens on start up and from my understanding this only happens from a faulty pcv. I put my old one back on and it still happens. Tomorrow I’m gonna take my valve cover off and wash out the baffle, hopefully that works out.
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Dustinscott328
ES - 1st to 6th Gen (1990-2018)
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Jan 14, 2026 02:22 PM
