... i did top off gas before hitting trail...
Define top-off? Did you fill past the first pump nozzle shut-off?
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... i did top off gas before hitting trail...
Define top-off? Did you fill past the first pump nozzle shut-off?
I've been dealing with this problem for years now. I have an 07'. This is the first time I've been able to find any info on it. I've been to a handful of mechanics and nobody can diagnose the problem.
That's a good question.The pain and fear is real. A lot of us have these issues. Seems like it was a huge miss by Toyota somehow. Same issues in the FZJ80 but they never seemed to lock up. I'm curious what the evap if any system is like in the Middle East-spec 100s?
So I just looked over all my vacuum hoses in the engine bay and all of them are in great shape except for the two that were under the engine cover (another reason to remove it) It's these two:
View attachment 2370792
Above: I believe this is part number 2382950070 anyone confirm?
View attachment 2370793
Above: Can't find this part? Anyone know?
I've searched around on PS before and I don't believe the M.E. spec 100's have the emissions systems, at least similar to North America.The pain and fear is real. A lot of us have these issues. Seems like it was a huge miss by Toyota somehow. Same issues in the FZJ80 but they never seemed to lock up. I'm curious what the evap if any system is like in the Middle East-spec 100s?
I've been keeping track of temps all over the fuel circuit for the past few weeks with IR gun. Granted IR gun won't tell me how hot it is inside the pipe/hose but it does indicate to me heat soak hotspots along the way. It would seem that there's some heat soak to the return line cross the back side of the engine- I dont think its enough to warrant moving the line-possibly wrapping it with silicone tape or reflective wrap like you have there might make a small difference. But in my checking so far, the temps on that line and fittings haven't been substantially different form other sections of the fuel circuit as it makes its way from one side of the engine to the other. Ive been checking temps at inlet fitting at fuel filter, base of pulsation damper, banjo bolt at front DS crossover, banjo bolt and PS cross over terminus, FPR inlet, FPR outlet, PS where rear crossover turns to steel pipe, DS where it turns back to rubber and last where rubber meets the steel return line on the fenderwell. I haven't seen more than a few degrees difference between inlet and return through out the entire circuit. All temps being in the 135 F range (+/- 4). This is testing in +90F (intake temps 110F +/-) ambient temps city driving for 1hr.
I revert to my belief that the health of the fuel pump & FPR have more impact on heat soak than fuel lines across the engine. Not saying the proximity to the cat doesn't have a contributing effect, or where the Y-pipe joint meets the muffler pipe ( an area prone to exhaust leak and heating the front side of the tank). Just have to make sure the pump is strong and moving the fuel as it heats up. Old pumps get weak, more affected by heat and pump pressure and delivery drops-fuel heats up more.
Would be happy to let you check out my rig. I'm in C Springs area. Just drove back today from denver car temp outside read 91 to 99 degrees. I hit 203 on my engine coolant temp per bluedriver but this was with car full of family/gear and was in 4th gear going up that hill just south of lone tree, once we created hill the 203 temp dropped within 10 seconds to 190 so I assume the system did something to correct. Again 87 octane and no ethanol fuel and was full tank. Normally would have at least been venting when got home and hearing that sound of pressure against gas cap but was silent and no gas fumes expelling either. Attaching screenshots at end of drive from bluedriver and the record it saved too. Fuel trim/O2 sensor data should be in there.I assure your 189 to 205f indicates something not to factory specs. 205F should only be seen in the most demanding, hot OAT and loaded condition. Even then something is not right. 205F and your CAT will be very hot. I'll take a look at your rig, anytime you'd like to stop by. Please wear a mask (covid BS) here, I will also.
We're thinking along the same lines. That damage is cause by the condition over time. That the fuel shut off valve on vapor return line, may be getting stuck. But looking at parts diagrams in PQ. I do not see this shutoff valve after 02-. Those have CC in back and we may need to approach differently. But first all things under hood need to be at spec regardless of year..
I was just driving my 00LX w/350K+ miles (Emerald) in stop and go gridlock.:
I've never notice fuel smell, before. But on this day I did, at end of 3 hours stop and go driving around and in Denver at 99F OAT. Traffic is worst than ever these days, with people avoid public transportation. So this was worst case driving. I open the gas cap and got ~3 seconds of hiss, then put cap back on. I then heard CC humming. Went back and released cap again, and got 1 second of hiss. So gas must have been boiling somewhat. The system did it's job. This coolant system is spot on, except old fan clutch, which seems okay (aged). BTW; It's my understanding, CC vents to atmosphere when engine off. That fuel vapor is sucked into intake when running.
I did not get temps and FT while driving that day. Bluedriver had given me a bata driver to test, and it failed. Darn!
I do have two things on Emerald, I've been wanting to do. That is have fuel injectors serviced by Chuck (FIS) and replace the old factory fuel pressure regulator.
Note: I have extensive service history on Emerald. I don't have first 100K mile out of canada Dealerships, but most all for last 250K miles. It is the longer/thickest service history I've seen. Never any mention of fuel issue of this topic, that can I recall. I take another look. But it spent time in many parts of North America, and last few year in Ft Collins foothills at about 6,500 feet. It was a good climb on slow road too, where it lived. All back top and no shade. So it had, hot, long slow drive daily in the summer.
I checked that part seems to be valid part of convo for 99-02...which leaves me out here with an 03. My part here is part of the CC that moved to rear of vehicle near spare whereas I think your CC and valve in question here are in engine bay?Has anyone tried replacing the evap valve I posted to solve this?
95 degrees and fluctuating elevation from 5k to 11k on and off all weekend. Popped the gas cap a few times and not even a hiss of pressure being released.
I even "topped up" the tank to see if I could duplicate others issues.
I checked that part seems to be valid part of convo for 99-02...which leaves me out here with an 03. My part here is part of the CC that moved to rear of vehicle near spare whereas I think your CC and valve in question here are in engine bay?
By any chance, do you have the part number for the valve you're talking about? I'm currently searching your posts for it, but since you're online maybe you'd help a brother out?There is a valve for both eras, the earlier models is in the engine bay, later models on top of canister in my understanding.
To me the gas temps are a contributing factor sure, but the fact the system isn't releasing pressure is why it's boiling out if the tank.
Im curious on if anyone with the earlier models has had success with the valve like I have.
Nevermind. I found your post. Thank you!By any chance, do you have the part number for the valve you're talking about? I'm currently searching your posts for it, but since you're online maybe you'd help a brother out?
Nevermind. I found your post. Thank you!
Has anyone tried replacing the evap valve I posted to solve this?
95 degrees and fluctuating elevation from 5k to 11k on and off all weekend. Popped the gas cap a few times and not even a hiss of pressure being released.
I even "topped up" the tank to see if I could duplicate others issues.
Here is the part that was replaced at 152k on my cruiser. Dealership noted a PO441 code in their memo line. I have to imagine sometimes the computer catches this and sometimes it doesn't.
Vapor Canister Purge Solenoid. Dealership called it the "Evaporative Emissions System Vent Valve"
#9091012268
1999 Toyota Land Cruiser Vapor Canister Purge Solenoid. Evap - 9091012268 - Genuine Toyota Part
Vapor Canister Purge Solenoid. Evap. 1999 Toyota Land Cruiser. Genuine Toyota Part - 9091012268 (90910-12268, 9091012130)parts.toyota.com
It looks like a fairly easy part to verify serviceability on. The question is, what is the trigger for the PO441 CIL code?