Question about 2009 GMC Sierra 3500HD

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Cracked differential housing on gmc sierra 3500 4 x 4

Heavy clacking noise for over a year. dealer could find no reason. When I inspected the truck i found a loose bolt on the passenger side lower control arm mount. It had obviously been moving up and down over 1/2 an inch for some time. Could this have caused the differential to crack?

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  • 284 Answers

Not likely. Usually abuse 4 wheeling or tranny bolts loose and diff.shifting around. You might have smacked something with it when driving whether on road or off road.

Posted on Jan 18, 2013

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Posted on Jan 02, 2017

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SOURCE: HAVE A 03 GMC SIERRA

I had the same problem in my wife's 2003 Yukon Denali. The power seats and passengers side window wouldn't work. Turned out to be a blown Buss Type fuse in the Underhood Fuse Block. It is the one marked MBEC 1 50amp. Hard to tell if the are blown so look very carefully. Should look like a hoop with two shiny solderlooking bubbles on either side. On my blown fuse, it caught my attention because it looked like the solder was missing and I had to look very closely to see the bottom of the "hoop" was open. They are very hard to remove and must be pulled straight up.
This type of fuse looks like a red square with a clear plastic top showing the fuse link under the plastic. On my vehicle it is on the top row second one from the left.

Posted on Dec 21, 2008

  • 1214 Answers

SOURCE: need to replace passenger side view mirror 200 GMC Jimmy Diamond

On my '97, there was a triangular shaped piece of plastic on the inside trim that had to be removed. I think all three mounting screws were under that. It's been a few years, but I think that was how it was done.
I remember it was pretty easy though.

Posted on Jan 29, 2009

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SOURCE: 1989 GMC Sierra truck doors loose

Hey there.You can purchase a door pin and bushing repair kit to tighten up the hinge area,requires removing the door to replace.If the hinge area is worn to badly,the brass bushings willnot last.Also your window crank handle is held on by a C-clip behind the handle in between the plastic shim and the handle which requires a special tool to remove or a small screwdriver to get the clip off.It is hard to see.The shaft that the handle is on are known to wear also and if thats the case you will need to have the window regulator replaced.Hope this helps.John.

Posted on Mar 10, 2009

  • 335 Answers

SOURCE: 1989 GMC Sierra 3500 loose tilt steering column

Without taking the tilt mechanism off you can only reach 2 of the 3 bolts. If you use 1/4 in. socket on 1/4 in drive with 6 in extension you can just get at the left bolt. If you remove the tilt spring you can get to the bottom bolt. To remoce tilt spring retainer use standard Phillips.

Posted on Jul 19, 2009

  • 44 Answers

SOURCE: 01 GMC Sierra - Loud tapping noise upon startup

I have the exact same truck and the same problem. I have been told that the valves and sticking and to try a GUM-OUT type product before spending that much cash. I don't know how a Fly Wheel can cause that but, maybe. I have also been told that the springs/valve rockers may be worn out.

Posted on Jun 08, 2010

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