I think you are right in that it is best not to touch anything until the truck is warm. Unfortunately that means no heat for a while because often I cannot plug in the block heater, thus I turn off anything that can be turned off including heater and fan to allow all battery power to focus on getting the truck started(anybody know if this theory is sound with this electronic ignition). Apparently Toyota has a cold weather expert engineer who is being made aware of this particular problem with the heater fan.
Thanks for your advice. I would be interested in any other cold weather issues with the Tundra if anybody else would care to respond.
Jack
PS.Maybe I should just move to California.
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Originally Posted by DeepStealth
ah  someone else who knows what cold really is . i'm an alaskan...
in the -30 range, some components will simply contract to the degree that factory "room temperature" tolerances are exceeded, and things stick. i have this problem with my temperature knob when the temp drops below about 10*F.
it could be a contact, it could be a tolerance problem, honest cold (not that 30*F nonsense that people whine about here in ohio) is generally not something designed for--much below the temps you're experiencing, most cars dont even start due to frozen fluids and lost tolerances--i'm sure you're no stranger to outlets in the grocery store parking lot for block heaters  .
some ideas: check the tolerances when it's bitter cold--might have to take it apart and leave it outside, then measure...-30 is no laughing matter, no time to be working outside on a truck. also check the continuity through the fan.
i'm guessing it's caused by contraction of dissimilar materials, but it could be hell to track down.
a couple things i do in winter when i know it'll be cold enough to freeze knobs and dials is leave them where i'll want them in the morning, but in the case of moving parts like a/c compressors and fans, i leave them off until the truck has warmed up. i don't know how they'll react to serious cold, i've driven through it (-20*F) in a tundra but not had to start the truck in the morning in those conditions.
good luck,
-sean |