WHILE DRIVING VEHICLE ENGINE LOST POWER AND VEHICLE SLOWED. WHEN AN ATTEMPT WAS MADE TO DETERMINE THE CAUSE OF THE POWER LOSS HEAVY BLACK SMOKE AND FLAMES WERE OBSERVED FROM THE ENGINE COMPARTMENT. VEHICLE BECAME FULLY INVOLVED WITHIN 3 MINUTES. LOCAL FIRE DEPARTMENT RESPONDED TO EXTINGUSH FIRE. CAUSE UNDERTERMINED. FIRES POINT OF ORIGIN WAS IN THE AREA OF THE ECM/BRAKE MASTER CYLINDER. WELL MAINTAINED VEHICLE, NO FLUID LEAKS,MECHANICAL ISSUES OR WARNING LIGHTS PRIOR TO INCIDENT. *TR