V6 explorer - mysterious droning sound at startup ? - video

[SgKukov]

Hey Guys,

im trying to figure out what this droning sound is at startup. It only makes the noise on cold days for the first minute.

https://www.youtube.com/watch?v=5oWaTDk_Lpo&feature=youtu.be

Typically its not this loud and isn't a pulsing but more of a constant hum. The sound goes away after about a minute and in the warmer spring/summer months i barely hear it at all.

Any idea what it is? I'm hoping its a belt or tensioner pulley and not the timing chain death rattle...

 

[5whiskey]

Highly likely that it's the power steering pump. I have heard torque converters making similar sounds but that is a classic PS pump noise. It's annoying, but the pump may not fail for years after it starts making that noise.

 

[Tyleryac]

Watch this video. The guy had the same problem and was able to fix it easily.

 

[SgKukov]

Guys thanks a lot! this helped pinpoint the problem in 2 minutes while i was spending hours trying to figure it out.