2012 Avalanche White Xterra Pro-4X
Join Date: May 2013
Location: Catonsville, MD
Notorious Fan Clutch (((Sound))), another (((Squeak))) and maybe a Broken Ground Wire
I have had the cold start up fan clutch noise for quite sometime now. I went ahead this past weekend and replaced the fan clutch and the water pump. However, it did not fix the issue. I have seen numerous posts about this issue and the clutch being the resolve but this wasn't the case. I also was too late in finding that it should be a Nissan part and not aftermarket of any kind after ordering the fan clutch from rock auto. It was too late to return so instead of wasting the money, I decided to try it out. The water pump was OEM though. So I am not sure what is causing this issue. Only does it on start up with a cold engine (doesn't matter of outside temp). Will make that sound pretty much on any accelerating until temp gauge reaches normal operating temp. I'm not really sure of the cause of this but I can say for sure it wasn't always like it (as you are probably aware).
I've also got a squeak going on, during accelerating only, that I noticed BEFORE replacing the fan clutch and water pump that I still now have. Not sure if it is related or not. A new belt went on during the work this past weekend and I didn't notice and issues/squeaks while the belt was off and I was spinning all the wheels I could.
One other thing I noticed was that I have a broken ground wire that I can't figure out where it goes. I can say for sure that I did not do it this past weekend since I noticed it right away while starting to dismantle the air filter housing. I have two pictures showing where it is so hopefully someone can check their X and see where it leads. I don't know when this happened and doubt it has to do with any of the issues I mentioned already but obviously, I'd like to figure it out before poop hits the fan (maybe literally??).
So if anyone has an advice on the loud jet engine on start up noise, the squeak noise on accelerating and can tell me where that ground wire leads, I would really appreciate anything I can get.