WHILE DRIVING THROUGH WEST VIRGINIA, PULLING MY SAILBOAT, I GOT A "CHECK ENGINE" LIGHT; AS I WAS COMING UP TO THE BECKLEY SERVICE AREA, I DECIDED TO STOP, FIND AN AUTO PARTS STORE AND GET THE CODE READ. JUST AS I WAS ENTERING THE SERVICE AREA, I LOST POWER, SIMULTANEOUSLY HAVING THE DASHBOARD FLASH A "TPS SENSOR" WARNING, AS I DESCENDED INTO THE REST AREA, I REALIZED THAT I HAD ALSO LOST MY BRAKES (BUT NOT THE TRAILER BRAKES) AND THEN, WHILE COASTING INTO THE PARKING LOT, A WV TURNPIKE PU PULLED ALONGSIDE WITH THE DRIVER GESTICULATING AT ME, YELLING THAT I NEEDED TO GET OUT OF MY TRUCK, IT WAS ON FIRE. IMMEDIATELY UPON STOPPING, THE FRONT END BECAME ENGULFED IN FLAMES, ULTIMATELY BURNING COMPLETELY UP.