Where is the thermostat on a 2003 nissan altima Source Source Source Source Source Source Source Source Source Source Read Also: 2003 Nissan altima 2.5 thermostat How to replace thermostat on 2003 nissan altima How to change a thermostat on a 2003 nissan altima 2003 Nissan altima thermostat replacement 2003 Nissan altima 2.5 thermostat location 2003 Nissan altima thermostat location