overheating on 2003 Nissan Xterra

the xterra is overheating...the needle goes all the way to hot...the a/c blows hot air and now the engine light is on...the thermostat was just replaced but that didnt fix the problem...any ideas thanks

by in Little Neck, NY on June 14, 2010
3 answers
ANSWER by , June 14, 2010
Could be a clogged radiator, bad water pump, bad head gasket etc. You need to have a shop pressure test the system properly www.repairpal.com/directory
ANSWER by , August 26, 2010
I just had the same problem on my 2003 xterra (3.3L engine). The problem was the fan/clutch assembly. If it fails, you wont notice till you are stopped for a long period (with no air flow thru the radiator), and having the A/C on will exacerbate it. I had the fan clutch replaced, and also had my a/c system checked and recharged. As for the engine light (I assume "check engine"), when you get the fan clutch checked out, have a diagnostic run to assure nothing else is wrong with the engine
ANSWER by , October 03, 2010
I just had the same problem, replaced the belts, water pump and radiator, it was the second radiator within a year.