Quote:
Originally Posted by johnsoma73
Attachment 382134
2001 4WD, One of the evap lines to the charcoal case got so hot that it disintegrated and then melted the seat above it.
A Toyota specialist here in Denver has never seen this in over 30 years and has no idea what caused it.
There was no wires involved.
Any ideas?
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When you fill up, do you stop when the pump stops? Or do you add a little extra, i.e. top off the tank? I believe topping off can put liquid gasoline into the charcoal canister. Activated carbon (charcoal) and hydrocarbon (gasoline) can react very exothermically (lots of heat generated). The charcoal canister should only see vapors. The liquid may have resulted in a more significant reaction.
