How to Replace a PCV Valve - with MAF and Spark Plug Access (Toyota Prius)
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- เผยแพร่เมื่อ 3 ต.ค. 2024
- Exact Part from video: amzn.to/2ln5nOf
OEM Part: amzn.to/2jUof6D
MAF Sensor: amzn.to/2ln69L9
NGK Spark Plugs: amzn.to/2lgK40z
This videos show you how to replace the PCV Valve on a Toyota Prius (2004-2009)
There is another method where you remove the weather seal instead, but I find this method better as it provides access the Mass Airflow Sensor (MAF) for cleaning and the spark plugs also!
You only need some basic wrenches, no fancy tools used!
Video Title: How to Replace a PCV Valve - with MAF and Spark Plug Access (Toyota Prius)
Video File Created Date: Saturday, April 13, 2019 (Video may or may not have been captured on this date, it shows the date the video was last converted.)
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Update I flipped that wire harness over and got a long 19 mm socket on it broke free with one turn. With a breaker bar. thank you so much I looked at a lot of videos but they were all saying way more complicated stuff..
@@skykid2 Glad it worked out for you! Your're welcome! If it helped, please like and sub! :)
Completed this yesterday at 155,000miles, MPG went from 44 to 56.
I'm glad it was useful :)
I used your two wrench technique to break free a pcv valve that had been in my 2007 Prius for 13 years. Thank you for sharing!
Glad it helped! Thanks for watching!
Thank you for the nice video! I followed your procedure to replace the original PCV valve on my 2008 Prius without much difficulties. I am the original owner of this 2008 Prius with 185K miles, but I have never changed the PCV valve on this car before. I ended up using a 19mm socket to loose the PCV valve (very tight). To my surprise, the original PCV valve is still in good condition which rattles freely as the new OEM PCV valve. I replaced it anyway. I also cleaned the MAF (only slight dirty). My 2008 Prius does not consume any engine oil between oil changes (once a year/every 12,000 miles or so with 5W30 Mobile 1 extended performance full synthetic oil). I still can get about 53 MPG on this car with mixed local and highway driving!
What work have you done on your car?
Just changed mine with the help of this video. Toughest part was getting the plastic clip off the wiring harness. I ended up taking the bolt off the bracket that holds the clip instead. I was able to use the closed end of 19 mm wrench to remove the valve. Had to go buy one from Home Depot for only $5. Be sure to have a regular wrench. A ratcheting wrench would not fit on the valve, too little clearance from the block. Thank you very much for making this video!
Thanks for the heads up about not being able to use a ratchet / breaker bar.
Nice video. Thanks for not making us watch you unbolt and unclip for 30 minutes like a lot of guys would.
No problem 👍 The power of video editing and also not being lazy haha! 😆👌💯
Because the high voltage battery was spinning an engine that WASNT ACTUALLY RUNNING AT ALL!
GREAT ENGINEERING!
Thanks for the vid about to do the job right now! I always appreciate good mechanic tutorial vids. I’ve used TH-cam for two years now for working on cars and I’ve learned so much it’s amazing.
Glad it worked out for you! Your're welcome! If it helped, please like and sub! :)
Spray some PB Blaster around that PVC, and let it soak in. Should make it easier. Also a 19 mm crows foot with a 1/4 ratchet will work.
Just replaced PCV Valve today on my 2009 Prius. When it came to breaking loose the valve, I used a 19 MM wrench, open end on valve, then a short length of pipe on other end of wrench, broke free on first attempt. Using 2 wrenches would have worked as well.. Great video.
Thats great!
Everything about your video was well stated, precise, and to the point. No bogus annoying music, or unnecessary filler talks. Thank you so much. I learned so much and was able to tackle this otherwise complicated task, quite easily.
Glad you enjoyed it! :)
Didn't need to disconnect battery. I recommend using a wire tied to the hood to hold the relay box out of the way. At first it seemed impossible to move the whole (stiff) wire loom out to the left, in order to get to the PCV valve: I had to get more aggressive, and it was difficult to clear, but it can be moved! I used a 19mm socket on the valve, as it is really tight (the open end wrench slips off). As for the MAF, I removed it and cleaned it up nicely with just a toothbrush (no need for special spray). Now my Prius purrs like a kitten. Thanks! Saved $200.
Thank you so much for a detailed video. Today we are buying one that has 200,000 miles and I don't believe it's ever been replaced. video looks like I can do it in 20 minutes.
Awesome! Yes about 20mins will do it. Like and sub if this helped! Thanks!
Excellent, direct to the point. I like the recommendation to take the opportunity to clean the MAF sensor (was going to suggest it myself if you didn't). Maybe only check the plugs if not time to replace. Certainly when it IS time to change the plugs, also clean or replace PCV valve and clean the MAF sensor.I always use compressor to blow away debris before pulling plugs.
Tip: Any project where I have more than 3 kinds of bolts I use a parts storage case (Harbor Freight) to store each type in a compartment with a note describing where it goes. Was useful when I did remove the wiper assembly and cowl to get to the strut mounts. Those magnetic trays are also helpful.
Please like and subscribe if it helped! Thanks for sharing the tips and thanks for watching! :)
so nice of Toyota to put it in such an easy place to get to.🤣
compared to the air fuel ratio sensor, it's a breeze
I was trying to get to the ground points. your video is in the right place! Thanks
Another thing to do while doing this is also clean the throttle body. While that's off you can look inside the hole and you'll see how much oil has been seeping past the PVC valve mine was kind off bad. I thought about these job since car was wasting to much oil. Another way is putting finger inside tail pipe escape bon rear, if you're fingers come out very dark it's burning oil. Just hope it's this and not the piston rings
And here i thought it would be easier then my 2002 E320 wagon... thanks for the info i just picked up a 2nd gen prius.
Funny you mentioned that. I have an 04 e500 wagon. It's way easier to work on than that Prius. Haha!
AWESOME video! Straight to the point and crystal clear! Thanks!
You're welcome! :) Good Luck!
Thank you for making this video. I should be able to do it on the weekend.
Glad it helped! Thanks for watching!
Like and sub if it helped! Thanks
Thanks for your help buddy ,
No problem 👍
Nicely done!
Thanks! I hope you will subscribe to me soon!
Great video thanks I just did mine after 155k still was good thou
Glad it helped and nice work! :)
My parents were ftim N E Alabama too.
I'd recognize that accent anywhere!
I hope a tune will allow my 07 to actually crank!
I had no idea why all my HARD WORK reconditioning my battery pack was going down the drain FAST!!!!
Alabama born and bred buddy
Hey, did it do the trick?
Thank you for making this!
I just used one 19mm combination wrench. Carlyle anti slip wrench.
Thank you for this video. If I were to have a shop do this for me what should I expect to be charged for this repair?
The part is around $10
Labor depends on country and area, you can lookup the hourly rate on Google for your area
Cheers!
Great tutorial
Thank you! 😊🔥
Awesome. Thanks for the video
Glad it helped! Thanks for watching!
Like and sub if it helped! Thanks
Thanks for the video! Very clear. By the position of your wrenches, does the pcv valve loosen clockwise versus counterclockwise?
Wondering the same thing
@@meatzilla6129 It's a regular screw so standard. Counterclockwise to loosen. A crowfoot 19mm wrench will make it really easy to loosen.
Great video huge help!👍👍
Glad it helped! :)
Thanks
Welcome!
Almost 250,000 miles on a 2008, never had to replace this part.
Thats great!
Only consequence is it may burn oil. I have a 2005 with most likely original pcv valve. I bought in 2018 and it burns oil. I just learned all this so I'm going to change asap.
Nobody has done upper radiator hose replacement on 2004-2009 Prius ... From what I see in your video it looks like this is the way to get access to the hose on the engine side... too many things around the hose.
If you have bad pvc. You get any code?
Yes, but not from the PCV itself. The code will be a result of the bad PCV. Usually P0171 and P0174... Perhaps others too.
I used a dead low hammer on the 19mm to bang the valve loose, was t too bad a job, but I hate having big hands in a small engine bay....
thank you!
No fukkin way, you have to take half the car to change a pcv valve? What kind of idiots would design something like that???
Yeah, having to remove the ignition coil wires to reach the pvc seems like an extra pain. 90% of Prius owners probably don't change it. And most Prius's consume oil like mine. I may bite the bullet and change it. I want to clean the throttle body anyway so the air filter housing will be moved already.
Hello, I was hoping to get the OE part #, so I can make sure I will be ordering the correct part from Amazon. Thanks!
12204-21011
Valve Sub-Assy
Gen 2 base prius 2008.
Just curious, how many miles on your Prius when you changed the valve?
My torque wrench wouldn't fit in the small space so i had to remove the windshield crawl .
If you get used to torque specs, you can just wing it. Probably easier than removing a cowl! Glad its done either way, hope it helped!
I have never met anybody else that's Ever showed that take me to me I'm always the one saying that somebody else as they stare at me Like I lost my mind And it could never work. 😆 lol
How do you know when to change the pvc valve
usually when its stuck closed, the crankcase cannot vent. this causes engine pressure. With that: black smoke and/or misfire at idle and/or increased oil consumption
when its stuck open... you'll have surging
They are cheap and easy to replace, so if you're at least 75% sure, i'd start there. sometimes the diagnostics would cost more in time and patience
Another thing to consider is if you have an issue with the catalytic converter getting fouled from oil. You can check the throttle plate to see if there's any oil build up there.
do I need to disconnect the battery when doing this? on a normal car I would....
no
what this pcv valve doing? my prius with full tank doing less miles than last year can u tell me if u know what need to change or clean . cause diagnostic not showing any faults thanks
Ever figure out what cause your fuel ratio to go down?
Mileage is going down due to wear and tear on the hybrid battery
👍
is there a egr valve on a 06 i think its clogged and i wanna clean as well with the pcv
Just to change the Pcv valve a 250$ job at the dealer?
could a person just put a hollow one in that spot and a working one where you can easily reach it? say half way down the hose?
If you want to really be a cheap bastard, you can just clean it with some carb cleaner/brake cleaner/gas etc They're always just clogged with soot and oil.
You sound British so am I and I can't find the toyota prius pcv anywhere in the Uk
haha yes mate! Just order it from eBay, a lot of the sellers on there do international shipping for car parts. I havent seen a whole lot of hybrids on the roads out there, so I imagine you would be paying out the backside for one from a toyota dealer
Great video, ... Question: at what mileage should this be done for the first time? Also, what are the symptoms to know if it really needs replacement? Thanks
In the video he mentions to replace every 50,000 miles. From my understanding, your engine will burn less oil with a fresh PCV valve.
Once it gets fully clogged like my 05’ with 260K. Every once in awhile during long periods of idle it’ll burn some blue smoke out the exhaust. I thought it was rings but ended up being the PCV. Also thought the 0W20 was the reason for the oil burning about .5 (half a quart) every 2K hard driving. WOT. Come to find out it was the PCV valve
Wonderful video thank you
No fukkin way, you have to take half the car to change a pcv valve? What kind of idiots would design something like that???