[BLUEH20]

Replace the the coil! It appears that it is breaking down intermittenly--this condition s not related to heat no run condition--it is related to the fact that the soild state coil is failing. This problem was first brough to my attention in the 1990's Chrysler Jeep series with the 2 part coil packs.

While you are at it--up grade to the hot coil and wires listed in the stickies above the chatter.

I "ass u me" that your techs have checked or replaced the cam positin senor.

Go after the secondary ignition parts--should solve your problem and increase the performance of your ride.