Trunk Wiring problems of the 1999 Dodge Durango

1999 Dodge Durango - engine stalls during driving, relates to computer overheating. I had the computer replaced but the problem returns. Vehicle very difficult to stop or turn d/t power loss. Last occurred in oncoming traffic lane while turning. Computer returns no codes but odometer displays no bus. Engine compartment is way too hot for this component so I do not expect anything to work except re-routing the wiring and mounting the computer outside the engine compartment. I have tried improved air flow and insulation but it simply gets too hot. I cannot stress the level of risk this problem presents. Had this occurred while I was pulling a trailer over one of my usual camping routes I would not be reporting this nor would anyone else in the vehicle because losing the engine on a canyon edge would make the vehicle impossible to stop. I refuse to drive the vehicle as this has now happened even on quick trips on slow flat roads. This failure has occurred 5 times now and is predictable. Hot weather, 5-15 minutes of driving, all components hot in engine compartment, let it all cool down and vehicle can re-start. Odometer blinks 4 times and returns no bus fault. Computer will not return a code and so is not covered under its warranty for replacement. This is not a question of if but when a class 1 mishap will occur.