I've been having the same problems with my SDL. Does yours turn back to cold if you turn the knob all the way and give it a minute or two?

I will have to try these tricks from you guys...thanks!

__________________
My Primary Driver - '85 300CD - 4-speed conversion, 2.47 rear, lowered, euro headlights, rebuilding (not restoring so much)

Wife's - '08 Saab Sportcombi Aero

Riding a '03 Yamaha Warrior