Cobra,

Print out the excerpts from this thread and find the other one that states that the secondary cooling unit for the supercharger is most likely at fault. It causes an over-temperature condition that makes the supercharger shut down. This has been the case for a few of the SRT6's that have that problem. It's a pesky problem to fix, and happens more in summer obviously. But if they want to induce the problem, try draining a bit of coolant out so the engine temps go up more than normal to emulate summer driving temps. Might cause it to happen... Or just have them do that to at least eliminate that cooling unit.

You might also consider finding a new dealership that has SRT6 trained techs. There aren't many of them around... In fact, you might ask the service manager if the tech working on it has been trained specifically for SRT vehicles and particularly the SRT6... Once you find a good dealership with the right techs... stick with them... That's the only downside of SRT6's... rare parts, rare technicians... consider taking out a life insurance policy on your local SRT6 technician...