Asked by Muranosmcdonald Aug 12, 2017 at 12:44 PM about the 2007 Nissan Murano SE AWD
Question type: Maintenance & Repair
My air condition went out in my murano as I was
driving down hwy it was smoking not under hood
though....but i had plenty of coolant but it ran hot
for 10 min...then it cooled back down...now it's
making a loud squealing noise even with air off
what could this be ?
Generally the first thing i would check is the water pump. As the bearing seal goes you lose pressure, and will get metal to metal contact. If you have plenty of coolant, this often means a circulation issue. Hope this helps.
I appologize. I read the entire issue, then address the wrong thing. This is actually a simpler fix. On A/C units, on occassion as the A/C clutch engages, there is occassionally not enough tension on the belt to move the pulley against the compressor pressure. The squeeling and smoking is the belt attempting to turn the pulley and failing. First, check the belt for excessive wear, second, tighten the belt by locating the tensioner, and third, belt dressing is a very cheap, yet useful tool for 3 bucks. Hope this helps.
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