[Northkeep] auto advice?

ld.blackmoon ld.blackmoon at cox.net
Mon Oct 18 09:42:48 PDT 2010


have you checked the fluid level in the front trans axle  ?
does it make any odd noises while in 4w low ? or just when in 4w high ?
Be Safe , Be Happy, Have Fun
----- Original Message ----- 
From: <Kevinkeary at aol.com>
To: <northkeep at lists.ansteorra.org>
Sent: Monday, October 18, 2010 9:06 AM
Subject: [Northkeep] auto advice?

> Anybody out there know anything about small 4-wheel drive systems?
> We own a Trailblazer,'04. We've already replaced the rear differential
> because some previous owner or witless mechanic put the wrong lubricant in 
> it.
> We only use the front drive system when we're moving a heavy trailer 
> around
> our  yard, off pavement.
> It has acquired a roaring sound that Keigan describes as an airplane roar.
> It is getting louder. It seems to be coming from the forward portion of 
> the
> vehicle this time, but it's hard to tell; it only shows up above 20mph,
> gets  loudest at 40-50mph and weakens above 65mph. (We drove to Houston 
> and
> back this  weekend.) I suspect a u-joint on the forward driveshaft, but
> crawling under it  this morning, I can turn the forward shaft freely (4wd 
> is not
> engaged, but front  wheels are on ramp and can't turn) and there is no 
> play
> in the u-joint on the  front of the driveshaft. (There isn't one on the 
> other
> end, the end that fits  into the forward transmission or whatever it's
> called.) I can't detect any play  in the front drive axles either.
> Last Thursday I replaced the brake pads on both front disks. I didn't
> detect any problems that felt like wheel bearings -- and I don't THINK 
> that's
> what this sounds like anyway.
> Any ideas?
> Kevin
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