If it has a serpentine belt - should be automatic through the belt tensioner
All you do is look for the tension pulley and tighten it, see below
The 2003 Nissan Murano has 24 valves.
The 2003 Nissan Murano has a V6 engine.
The 2003 Nissan Murano is a gas-powered vehicle.
The 2003 Nissan Murano is 15 ft. 7.6 in. (187.6 in.) long.
The 2003 Nissan Murano has double overhead cam (DOHC).
The curb weight of the 2003 Nissan Murano is 3801 lbs..
The 2003 Nissan Murano has a 28.0 degrees angle of approach.
The 2003 Nissan Murano has a 26.1 degrees angle of departure.
The 2003 Nissan Murano has a continuously variable-speed automatic.
The 2003 Nissan Murano has a drag coefficient of .40 Cd.
The 2003 Nissan Murano's turning circle is 37.4 ft..