How to Fix IS300 P0440 P0442 Evap Valve | Gas Tank Removal

We replace the faulty evap valve on the fuel tank. This is the cause of P0440 and P0442 on the 01-05 Lexus IS300. The factory valve gets a hairline crack and doesn't seal correctly causing the system to lose pressure and throw the code. Most of the guys online are cutting the seat floor to access which is lazy and dangerous.
We do it the correct way by dropping the gas tank.
Here are the parts needed for the change:
77390-53010 Evap VALVE ASSY, Check Valve - ebay.to/3IvnqZc
77177-12020 GASKET Check Valve
Optional Parts:
77340-53010 Fuel Tank Rollover Valve
77179-33010 GASKET Rollover
77404-53010 Evap Valve Hose
77300-53010 Gas Cap amzn.to/3xMwpQY
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#P0442 #P0440 #is300
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[@logicaltopic434]

You know, I've always wondered why they charge so much for maintenance on lexus and BMW cars. However, after watching the pain in the rear seen in this video. I understand now why the manufacturers really made things a pain for no reason 😂. Seriously, great video, though, man! Keep up the great work!

[@TunerwithKids]

I don’t they ever intended for this valve to be poor quality and crack.

[@yhauls]

you actually don’t know how much i needed this video

[@tonyg-2jz82]

Dude...I love your videos man they've been super helpful and I feel like we've dealt with a lot of the same issues. That being said, I'm gonna definitely use the grinder method after hearing all the damn things you gotta do just to lower the tank!!

[@lsedanolg]

Yeah same here lol

[@NotHome]

I’ve followed you for a while and I kid you not, I *just* got this code on my SX. Gonna knock this out in short order and report back. Thanks for this man! Hands down one of my favorite channels.

[@Andres-300]

Thank you for doing it properly and not chopping the car

[@markerichoffman]

Perfect timing, son's car is throwing P0440. I just replaced the gas cap with the Toyota factory unit, hoping I don't have to go this far to clear the code, but if I do, I'm glad I found this video. Thx

[@TunerwithKids]

99.9% of IS300 will experience this issue in their lifetime. It’s guaranteed the valve due to to the crack.

[@markerichoffman]

@@TunerwithKids lol, my code is back, apparently not the gas cap. Just ordered all 4 parts to do this right

[@dang3554]

You’re a legend!

[@vmc2216]

Thank you for this video! I'll be doing a rear subframe overhaul in the next few months. While I have that down and out of the way I'll replace these components on the fuel tank as well. I have the P0440 code pending and CEL popping up at times. Plus, I smell fuel at the rear of the car; especially after a fill up.

[@TunerwithKids]

Yea beat time to do it. May want to do the hoses too just in case. Some people may have really brittle hoses.

[@vmc2216]

@@TunerwithKids I just ordered the two valves and gaskets you replaced on top of the tank. Luckily the previous owner had a bunch of work done at a Lexus dealer with receipts. Upon reviewing them today, the entire charcoal canister and associated hoses were all replaced. :-) If I have any fuel smells or issues after replacement I'll replace the gas cap for good measure. Thanks again!

[@llovah999]

@@vmc2216think you can link the stuff you ordered

[@vmc2216]

@@llovah999 I used the first link to ebay in the video description which was the overfill valve and gasket combo. Ordering the other check valve from a Lexus dealer. I would just use the part numbers provided and do your own search. You should be able to find a better deal based on your location and shipping rates.

[@ImportFan4300]

I actually need to do this sooner than later. How long did this take you from start to finish?

[@TunerwithKids]

I took my time, painted the tank and also filmed so can’t really say. But if you did this on the ground with some help and didn’t paint or clean, I would guess 4 hours if all goes smoothly.

[@diegovazquez2722]

Fyi a lift is recommended doing this job😭but a jack will do

[@TunerwithKids]

Lift is a luxury but can be done with wheel cribs and a jack.

[@Vaidercc]

I have both these codes showing up and my fuel tank drains in 2 days. Could this be causing my fuel tank to drain so fast?

[@TunerwithKids]

No. That sounds like a leak?

[@Gone_Rogue300]

My IS has a hesitation here snd rhere j chsnged the pedal acceleration sensor snd it helped for a bit but now rhe hesitation is back!! Not all rhe time tho. Could thid be why it hesitates here snd there

[@TunerwithKids]

No this is for emissions and doesn’t affect performance. Clogged cats, VVTI filter, dirty air filter could all be contributing to hesitation

[@kevincorrea3563]

What’s that other valve called that’s right next to the one you replaced

[@kevincorrea3563]

Nvm

[@Skepc]

I have this same problem for my is300 :( what do you recommend I wouldn’t be able to do this

[@TunerwithKids]

Only way unless you pay a shop

[@tonyg-2jz82]

Watch the videos using a grinder

[@kaga1]

damn replace my gas cap, but code came back 4 weeks later seems i have to bring to a shop to do this.

[@jaywatson721]

Same

[@bronxtaskforce01]

Hope you changed the fuel pump to avoid dropping the tank down. Again!

[@TunerwithKids]

Fuel pump is accessible via hole under seat.

[@kr4dh4x0r]

Can someone verify that all of those part numbers are correct? I'm getting "fuel tank roll over valve" to pull up for both 77340-53010 and 77390-53010.

[@masonmukai8584]

What are those red bars?

[@TunerwithKids]

Check my video on installing those Megan support bars.

[@scysser]

I might need to do this to my car I got the same code

[@TunerwithKids]

99% of all IS300 will experience this at some point (sounds like an ED or hair lost commercial 😂😂😂)

[@scysser]

@@TunerwithKids I wonder how much they will charge for this job 🤔

[@buya_pr]

Would these part number work for a 2001 IS300?

[@TunerwithKids]

Yea. Should all be same.

[@tonyg-2jz82]

Far as things like gas tank, the pump and inner components should all be the same. I know some engine wiring I'd different but far as parts go they're almost always identical