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Crestwood1001 03-10-2012 05:40 PM

Pinion bearing...
Recently my wk (4.7, 2005) has developed a hum in the front end, normally around 20-40 mph and then it goes away. I was told maybe a pinion bearing..... any thoughts, or ways to diagnose this.

2005JGC 03-10-2012 11:45 PM

Re: Pinion bearing...
is it a little more high pitched, and not so much goes away just gets high enough that it kinda sounds like it goes away?

Crestwood1001 03-11-2012 12:46 PM

I wouldn't say its high piched, its like a low hum that seems to go away over 40-45 mph

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Scottina06 03-11-2012 04:00 PM

Re: Pinion bearing...
try this for help

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