I am in Sedona AZ, warm days, and recently very cold night into the low 30s.
When the van is warm, it starts and runs great-perfectly normal!!   In the
morning, when it is cold, it cranks but wont start.   Not even a hint of
getting close to starting.

I have taken it to the local mechanic here in Sedona twice.  It is currently
in their lot.   They are lost as to what to do next.   Good Spark, new fuel
filter, fuel pump is good.    Runs great all day, wont start in the morning.
I don't think they have checked the Temp ll sensor-I will check with them
again this morning.

Does it sound like it could be a temp ll sensor issue?   Can I check the
resistance of the sensor when it is cold-I am guessing it will be high if it
is not functioning??

stan