Thanks,.. Art:
thanks for responding.
1. I had the shop ( where truck is now ) install an eletric choke last Sept.
2, i don't have the heater installed in the cab yet, ( summer project ).
3. The shop thinks the icing occours because of all the exsessive cold air reaching the air cleaner, from all the louvers on the inside of the wheelwells as well as the sides of the hood.
4. On these cold mornings, I always run with the electric fan off. engine temp shows 150-180.
jim