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Vses Fuse, Something not working right? Maybe?
gothoe?
post Sep 3 2017, 03:14 AM
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Guys, I've been away for a while but I have a strange situation with my Tahoe. I recently started driving it again since I've been playing with my new to me 2006 Frontier KC. No computer codes other than a P0452 that has been there for a while now.

2003 Tahoe LS
223K Miles
4.8L V8


Have replaced within the last year or so:
Pitman Arm
Idler Arm
Front Upper control arms
Front Lower control arms
Front Sway arm bushings and end links
Rear sway bar end links
Front wheel bearings
Inner/Outer Tie rods
Front shocks

Rear shocks replaced a while back also.

Tire pressures checked ok, no uneven tire wear.
Rear track bar and arms don't feel loose or have worn bushings

My truck has been driving really sloppy lately. When driving on a straight road, the truck feels like its swaying left to right as well as yaws a bit and the steering feels really loose. Very strange. Almost like the same feeling you get coming up behind an 18-wheeler and the wind pushes and sways the truck around. Tires look OK, haven't had them balanced yet but pressure and wear seem ok. Most of the steering/suspension in front has been replaced. the rear appears to be fine as well.

The VSES Fuse in the under hood panel is also good. I took the fuse out, and suddenly the truck drives as it should (given its mileage and age) with only slight sway and sligtly tighter feeling steering but again the fuse is good. My truck doesn't have the dash button for stabilitrak. Would my truck even have stabilitrak? Its an LS. Why would the truck drive so sloppy with the fuse but not sloppy when I remove it? I will be getting the tires balanced and rotated next week but I am not sure why removing the fuse improves the driveability so much if the fuse isn't blown?

Thanks for any help.

Art
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carguru
post Sep 3 2017, 07:33 AM
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I'd suspect your alignment is out


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gothoe?
post Sep 4 2017, 03:49 PM
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Thanks for the reply. I'm taking it for a tire balance, rotation, and alignment tomorrow and we'll see how it goes.
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gothoe?
post Sep 6 2017, 01:21 AM
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Went and got my balance, rotation, and alignment done today. Drive a whole lot better.
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carguru
post Sep 6 2017, 07:01 AM
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That's what I suspected, the alignment was out quite a bit and the stability controls kept over correcting. Glad that worked out.


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gothoe?
post Sep 25 2017, 03:33 PM
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Another update: Truck started feeling weird again. I looked at the rear sway bar and the bushings were in bad shape. I could clearly see a space between the bushing and the bar. Today, I replaced the upper and lower arms, the track bar, and put new sway bar to chassis bushings on it. It drives like new now. 223K miles and drives great still.
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carguru
post Sep 25 2017, 07:35 PM
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Sounds like all the rubber suspension parts were giving out on you.


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