Join Date: May 2008
Location: Philly Area
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every once in a while I get a very loud motor or something that cycles on for a few minutes. Service dept. didn't leave it running long enough to hear it so they sent me packing. They said AC compressor is fine. Whatever it is cycles on and off evenwhen the AC is off. It's so laud that whenver someone is in my truck and they hear it the make comments like wtf is that noise.... The intermittent issues are always a pain in the rear and I have only 400 miles of warranty left so I figured I 'd see if anyone has any thoughts.
Speaking of warrany my rear differential was just replaced under extended Nissan warranty ( Vaden ) . Im thinking of re etending it.
Anyway I'm oping some of you guys may have ideas of what this could possibly be ...
Happy Thanksgiving... ( 74600 mi 2008 LE )
what you are hearing, if its coming from the engine, is the HUGE REAL TRUCK fan revving up to cool the engine.
I LOVEEEEEEEEEEEEEEEEEEe that sound. it sounds like a MACK tractor when they start off from a standstill. You know you hear the truck go through like 6 or 7 gears to get the truck up to 30mph. I love that sound and its totally normal.
on the Q, sometimes from a cold start the fan will ROOOOOAAAARRRRRRRRR for a few seconds... love that sound... yes Im special...