[1425956]

I think I may have this lock up issue figured out, or at least part of it. I noticed my lock up works perfectly in the afternoons only. Rarely does it work in the morning. So, considering there is a thermo-valve (ported vacuum switch) in the lock up system, and considering my truck sat for 9 years without being started, I am betting my thermostat is bad which is not allowing my engine temp to reach the required temp to open the thermo-valve and send vacuum to switch that kicks in the charge of fluid to lock up the converter.

It is warm enough in the afternoon right now to where my temp will read just a little above the first mark on the gauge. It is still just a little too cool in the mornings for my engine to get very warm...Which leads me back to the thermostat. I am going to install a new 195 degree thermostat tomorrow and I will post my findings.

What do you think? Way off base? Or am I on to something??? It seems logical to me....