When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
hose # 3 is a "connector" between hose #2 and EVAP pipe under car. #2 is fixed to engine, pipe is fixed to car bottom. engine connected to car body by frames and bushings, so engine could "shimmy". That's why I wrote "#3 is most loaded"
hose # 3 is a "connector" between hose #2 and EVAP pipe under car. #2 is fixed to engine, pipe is fixed to car bottom. engine connected to car body by frames and bushings, so engine could "shimmy". That's why I wrote "#3 is most loaded"
Thanks for explaining that but that wasn’t my real question. My real question was how did you get to the hose number three from above or below and did you have to move or remove engine bits to get to it?
It looks that lower end of #3 is accessible under car (try to lift drivers side and take off the tire). No engine movement required
I jacked the car up and pulled the wheel and got underneath with a good flashlight and it does not look very promising in terms of getting to the bottom connection to that hose without probably removing some things that appear to be hybrid related. Also decided to go ahead and check the vacuum at the service port,..I vacuumed down to -25 and came back five minutes later and it had moved to -23 so I lost 2 pounds of vacuum in five minutes. That said I simply stuffed some vacuum tube into the evap service port and then stuck the other end on my brake system vacuum pump I doubt that the service port / rubber tube is 100% sealed.
Just an update on my P0441 code fix.
The code has not come back for over a month and I feel dumb as it was a very easy fix in my case and I put it off so long.
A while back I installed a white service "T" in the vacuum line and capped it with a black rubber cap from the auto part store(see pic below).
When I went to remove it to blow smoke in the vacuum lines to find the source of my emission leak the rubber cap crumbled in my hand.
In only a year or two it had gone bad and dried out from the engine heat and was leaking so I replaced the rubber cap and the code went away and hasn't returned.
I can definately confirm that this hose runs from the front engine bay to the back of the car and if it is leaking it can cause this code.
I have a 2004 RX330, 130K miles. I normally get my emissions passed without issues.
This year I am having a hard time trying to get my emissions due to a "EVAP" fault. I have tried so many things but can not get rid of this issue. I ordered new rubber hoses and will replace most of what I can see in the engine bay (air filter area). I do see small cracks on them, hose is coming in today.
A bit more digging, hoses look OK but they are hard. Lexus dealer wants $37 plus tax for those three hoses. Wondering if I can use bulk hose.
// NOTICED THREAD MOVED TO HERE //
Hi bcollins, looking at your pic this is same as my 2004 RX330.
The vacuum line in your pic with the green cap- this is the line I replaced on mine and I used a Bulk vacuum line like you mentioned.
After the green cap and following the vacuum line towards the firewall it eventualls splices into metal line from there- so basically I replaced ALL the rubber up to where it turns to metal.
PS- only takes a pinhole crack to suck air and throw code from my experience.
>> Hat's off to IMSQ for great walkthru thread! I forgot this thread existed. Sucks getting older, memory slipping lol
Last edited by Margate330; May 29, 2022 at 03:18 PM.
Subscribed. lol
Waiting to see what other people find before digging in.
I have an annoying "small leak" evap code popping up randomly for a while now too and I haven't had the time or patience to deal with locating it and I have no smoke machine either so interested what other people find.
Just looking under the car the evap canister is not in a fun place- over the exhaust and behind a heat shield so rather not go there if I don;t have to and hoping the leak is somewhere else more accessible.
FYI, Phil, The evap canister is really easy to get to, jack up the right rear of the vehicle & drop the rear of the exhaust, starting at the tail pipe & then the muffler & next the evap sheild & there is the evap canister.....
FYI, Phil, The evap canister is really easy to get to, jack up the right rear of the vehicle & drop the rear of the exhaust, starting at the tail pipe & then the muffler & next the evap sheild & there is the evap canister.....
Thank you for the encouragement felix.
I got a little more lucky than you and was able to fix the code at the rubber lines under the hood, this time.
I know the day is coming the same code will get thrown again and I will have to do as you say and drop the exhaust and dig in there and replace the rubber lines at the gas tank evap components.
When I went under the car I wasn't sure if there was enough room to work without unhooking the exhaust or if I can just drop it down out of the way but from what you say it is doable if needed.
Space looks tight and info isn't very clear on the layout and exact location but I know it's under that heat shield and that's as far as I've gotten.
