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  1. 2001LC

    Gas/Fuel vapors/fumes visible from gas door

    I should have never mention "snorkel" dropping IAT. It was more just giving some background on conversation Joey and I had. In which he noted things that help cool engine of the 80 series. In that conversation, what was very import to this thread, IMHO. If fan clutch.
  2. 2001LC

    Gas/Fuel vapors/fumes visible from gas door

    "snorkel" does not prevent fuel boil.
  3. 2001LC

    Gas/Fuel vapors/fumes visible from gas door

    I've yet to see a CC DTC in 100 or 200 series. J2000 has done a lot of work with heat shielding and monitoring temps, in 100 series. He modified fuel system and intake. You can certainly check out what he's done. Then go down that road. It will benefit the issue (reduce fuel boiling) for sure...
  4. 2001LC

    Gas/Fuel vapors/fumes visible from gas door

    My thoughts on this whole issue. 1st if it is a design error in the Land Cruiser (80,100 or 200). Then all would boil fuel. They don't! I know of many, both stock an built rigs. Running high altitude trials, without issue. So, it must be something happening after it leaves the factory. Which...
  5. 2001LC

    Gas/Fuel vapors/fumes visible from gas door

    What you're looking at in post #209 pictures, is 3 radiators. The largest in the background with cottonwood, leaves, bugs, dirt, brake and tire dust, grasses and all manner of road debris. Is the engine coolant radiator. I can assure you, that in matters a great deal that fins of radiators all...
  6. 2001LC

    Gas/Fuel vapors/fumes visible from gas door

    Cleaned this radiator for the first time, since replace 30K miles ago. It's driven city street & HWY locally only.
  7. 2001LC

    Gas/Fuel vapors/fumes visible from gas door

    Interesting "4 of 7", not 7 of 7! Any differences, that account for only some boiling fuel.
  8. 2001LC

    Gas/Fuel vapors/fumes visible from gas door

    I was a bit shocked first time I logged ATF temp in a 200 series. Even with properly maintained coolant system, they do run hot. Its fins (oil cooler rad) also get clogged with bugs, cotton, grasses, etc. and than AT really runs to hot. Radiant heat from engine, CAT, AT, road & OAT all play a in...
  9. 2001LC

    Gas/Fuel vapors/fumes visible from gas door

    I see some very interesting data point being collected. Logging ECT, FT & AT (engine coolant temp, fuel trims & auto transmission fluid) along side these, may prove interesting/useful.
  10. 2001LC

    Gas/Fuel vapors/fumes visible from gas door

    I hear all the time. "My rig doesn't run hot". I ask how do you known? "Gauge on dash". Right! Use any device hooked to OBD port, and read ECT, IAT & AT temps. If boiling/venting fuel, 99 out of 100 will see ECT, IAT & AT are running hot. Yet water temp gauge on dash isn't showing it is! AT...
  11. 2001LC

    Gas/Fuel vapors/fumes visible from gas door

    Let's be clear: I'm not saying cleaning radiator fins will cure all fuel boiling. But we must make sure basic are in line first. Or we chase out tails. Also worth a note: Once a fuel boiling episode has happened, it become harder to cure to 100 % to no boiling events. It's believed that EVAP...
  12. 2001LC

    Gas/Fuel vapors/fumes visible from gas door

    I've no doubt @Taco2Cruiser, is correct. In that fuel on it's journey from gas tank to fuel rail and back to tank, picks up heat. That most of the heat comes from engine compartment. A fuel cooler would certainly benefit every fuel boil vehicle. It would be simpler than wrapping all fuel lines...
  13. 2001LC

    Gas/Fuel vapors/fumes visible from gas door

    I'd add to your list of data points: The ECT (engine coolant temp). I also like to run logs while driving. Have MPH & RPM is very helpful in decipher data. All I've found boiling fuel, run hot! Most jump to over 203F just sitting (summer heat AC on) at a red light. Very often I find ECT hitting...
  14. 2001LC

    Gas/Fuel vapors/fumes visible from gas door

    If engine air filter is getting clogged, it creates a rich fuel condition. ECM works to correct to a 14: 1 mix. A rich condition will drop cylinder head temp. So I doubt air filtration part of your issue. I can not speak for the LRA, or if properly venting. But if engine running hot, you will...
  15. 2001LC

    Gas/Fuel vapors/fumes visible from gas door

    All belly pans obvously do trap in more heat, than a stock 100 or 200 series cross member they replace would. The #1 and #2 skid are less of a concerns, but sure they'd retain more heat and most vent less than stock. Also consider, the mass of all those and of the bumper & winch. Also how bumper...
  16. 2001LC

    Gas/Fuel vapors/fumes visible from gas door

    Does 80 series have Charcoal canister? I don't work on them, so IDK!
  17. 2001LC

    Gas/Fuel vapors/fumes visible from gas door

    I'll jump in here, without reading thread. Sorry). Very likely once a " fuel boiling" issues has occurred. It damages the EVAP system, without a code (DTC) popping up in tech stream. In some cases, it may actually be the EVAP that was damaged first, causing events. Biggest issue I see causing...
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