replaced my PCV value today. first time replacing it in 165k miles. the old valve rattle sounded pretty much like the brand new one. leads me to believe with proper oil changes (every 5k miles) these PCV valves don't really go bad. could have left that one on probably for another 150k miles easily. I know a lot of folks do preventative maintenance and replace these every oil change. unless you have a defective valve I don't think that's really necessary
mine did not have any thread sealant on it though from the factory. I've seen youtube videos where people have thread sealant on theirs (I have a 2012)
Replace every 50K miles. I had oil leaks (valve cover and VTEC Solenoid) on my 2.4L Honda that would not go away despite replacing seals. It took replacing the PCV valve at 156K and redoing the seals again for the leaks to finally stop. Cheap insurance given a new PCV valve is like $5.
Not today, but on Sunday...
ive been chasing this terrible rumbling/rattling/vibrating sound from undernieth my 2014. I knew it was heat-shielding but i just couldnt tell where it was coming from. i had gotten under there, into the wheel wells, inside the engine bay, and on and on and on. I saw another vid by a member and started to investigate maybe a loose skid plate. nope
then the seas parted and...BOOM
this bulbous looking heatshielding on the drivers side up behind the frame wall had come apart. it looked like the armor plating you'd put on a gratefruit if it needed to go into battle as one of King Arthur's knights. Two screws, some safety wiring for good measure...
and now my T4R drives, and more importantly sounds, like its brand new...and now im back to driving around with all FIVE windows down, with the breeze across my bald head.
That’s terrible. I thought you found some feral cats?Removed the air filter today to blow it off. When I went to replace it, I found about 2# of dog kibble in the air box. #@$%&*^^!!! mice ...
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Can you provide pics of what you did? Got the same rattle on our 2014 and I’ve traced it to the heat shield on the driver’s side.

That’s terrible. I thought you found some feral cats?
I was going to suggest the ultrasound device. Let us know how that works. Maybe it’s time for a coyote pup that becomes a pet. Fortunately, I haven’t had mice issues, but I’m in a different environment than you. Good luck.Yeah, but they've all been either picked off by coyotes or have found accommodations elsewhere (I know that three have moved to a neighbor a mile away back in March). Now and then one shows up on my trail camera.
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This cat caught yesterday morning, the first time in six days.
I've stopped putting food out a couple months ago, got tired of feeding the mice and kangaroo rats and an occasional cat. I do keep a heated 1.5 gallon bowl of water on the porch, which the cat does use when he shows; otherwise my three laying hens use it daily.
I think it's an old stash. I installed the filter 7,000 miles ago in December, 2022 and I think it's the first time I blew it off. It probably was put there before I install the ultrasonic device and started putting dryer sheets under the hood both early this year. I've not seen the mouse on the trail camera since removing the food. I removed the cabin air filter and all was clean. So since there is no new food and with the constant noise, I think the mice have moved elsewhere.
I was going to suggest the ultrasound device. Let us know how that works. Maybe it’s time for a coyote pup that becomes a pet. Fortunately, I haven’t had mice issues, but I’m in a different environment than you. Good luck.
Picked up a 2018 trd pro premium in Littlefield Texas on vacation, it was time to trade in my ladies 2014 Hyundai and the cost on t4r’s down in the area was very enticing so she went for it and was happy to get out of the Tucson. It already had a artec bumper, toytec coil over lift, some nfab steps. Once we are back in WA I gotta do the transmission and case fluids, differentials and spark plugs but the CarFax was showing good care from the 2 prior owners. My last 2012 was a good daily for me but I sold it about 5 years ago so getting the pro was a real treat, anyway glad to be back in a 4runner!