No WTS light when cold
 

I'm new to this forum so bear with me. I have a 96 F-250 and when its cold ( 30-40 degrees) the WTS light does not come on. The solenoid is closing and the glowplugs seem to be drawing power. it will crank after I wait 20 - 30 seconds but it's smoking more than usual. If it's above 50 it's working fine. WTS light works and glowplugs work perfectly. Any ideas??? :dang:

eot sensor?

what's a EOT?

i have the same problem with my truck.. i was told it had to do with some of the wiring. its a cheep fix i was told i cant remember exactly what it was called though, try turning the key back and forth a couple of times because myne doesnt come on right away but after a couple turns it could possibly show up..:humm:

eot - engine oil temperature. I think the computer gets its information on when to activate the glow plugs from the eot sensor. THIS IS ONLY A GUESS. - I really don't know, but it sounds logical to me.

this would make sense. i'll give the shop a call that looked at my truck for that problem and ask them again what it was called, i was told it was just some bad wiring somewhere and that it wasnt a big deal so i didn't have it fixed. but it could be the same thing.