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2005 Silverado from hell

budone

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budone Enthusiast

budone

Posted
Posted

I have a 2005 Z-71 Silverado 5.3

 

It is becoming a nightmare. :seeya:

 

It was purchased Feb 2005, presently has 11000 miles.

 

The rotors AND drums have been turned already for a braking vibration. (Keep in mind, my last vehicle went 131,000 before it was traded and the brakes had 60% left and the rotors were never turned)

 

Tires have been rotated twice in 11,000 miles and balanced twice just in the last two weeks and an alignment done (Which was in spec) (And the dealership had me pay for...grrrrrrrr, but that is another story, but I have never met a service writer with such an arrogant attitude)

 

My problem, I still have a vibration between 52-62MPH. Thought it may be the tranny, but it has been checked twice, NPF. (Yes it is a 'clunker'.)

 

In addition, the tires are cupping. (That was blamed on me for not rotating the tires enough. Service writer stated tires are to be rotated every 4000 miles)

 

Have been told tires are fine, shocks are fine.

 

So what ideas do all of the experts have out there for me to offer the dealership again.

 

Thanks

cdn111 Enthusiast

cdn111

Posted
Posted

I think that Chevrolet will only pay for an alignment withing first 4500 miles. Factory tires are $#!t Brake??? Don't know why they would be bad, I've never seen one go through them that early. Vibration sounds like maybe a U-joint. Just my $ .02

blue2kzr2 Enthusiast

blue2kzr2

Posted
Posted

Sounds like u-joint or driveshaft. Tires should be rotated every 6,000 miles according to the manuals. Dunno why you'd have to pay for an alignment, if the dealer suggests it as part of the troubleshooting, it should be covered, especially on that new of a vehicle. After 10,000 miles is dealer's discretion though, they can goodwill it if they feel they want to be nice and it is actually a factory defect.

mmmikkke Senior Enthusiast

mmmikkke

Posted
Posted

Tires cupping is your clue, as far as I am concerned. Has anybody checked the tires, and the rims, for roundness?

 

And shame on the service rep for blaming you for not rotating the tires while the dealer has had the vehicle more than once for fixing a "vibration."

 

What kind of tires are on there? (We need to know, so we don't buy any of them.)

 

Get yourself a dial indicator, jack the truck up, and let it sit for 20 minutes, and check the tires and wheels for roundness. It's a nice tool to have in your toolbox, especially when dealing with intellectually-lazy service departments.

budone Enthusiast

budone

Posted
  • Author
Posted
Tires cupping is your clue, as far as I am concerned.  Has anybody checked the tires, and the rims, for roundness?

 

What kind of tires are on there?  (We need to know, so we don't buy any of them.)

 

 

 

 

 

Tires are Bridgestone Dueler A/T You are warned.....

 

Dealer states tires and rims are fine, but I am not too convinced they know what they are doing......

 

We'll be making an appt at another dealership tomorrow.... we will see what happens

boakes Enthusiast

boakes

Posted
Posted

I had the same problem on a toyota. The replaced the tires under warranty and problem solved. They told me they tried to balance them but still got the vibration, then switched the front and back tires and the vibration moved with the tires. I only had two bad ones then, but maybe you have all four that are out of whack. I would push for new tires and while they have them off the rims, have them make sure the rims are true and round.

hihosilverado Enthusiast

hihosilverado

Posted
Posted

I doubt it is ujoints, they vibrate worse when under a load and not just at a certain speed usually. The shaft could be out of balance though, that would cause a fast vibration felt through the seat and the floor. Do you feel any vibration through the steering wheel? If so I would be willing to bet it is tires. But if you can rotate the tires and never feel any vibration in the steering wheel then you have a problem other than tires or wheels.

budone Enthusiast

budone

Posted
  • Author
Posted
  Do you feel any vibration through the steering wheel?  If so I would be willing to bet it is tires.  But if you can rotate the tires and never feel any vibration in the steering wheel then you have a problem other than tires or wheels.

 

 

 

 

The vibration is also in the steering wheel and when the tires were rotated the first time I felt the vibration still, so the tires balanced, then a week later, rebalanced, and also an alignment.

mmmikkke Senior Enthusiast

mmmikkke

Posted
Posted
Are they load balancing the tires?

 

Perhaps another dealer would be the place to go...

 

 

 

Another thing to check, especially since the rotors have been removed, is the mounting flange where the 6 studs are anchored. Is there any corrosion, or foreign object, that's preventing the front wheels from fitting tightly against the flange? When you put the wheel in place with no lug nuts, does it seat comfortably or can it be rocked over some "high spot"? Something might be warped and that would then involve both your brakes pulsating, and the wheel running true. That dial indicator would really come in handy here.

toyotatech Enthusiast

toyotatech

Posted
Posted
Are they load balancing the tires?

 

Perhaps another dealer would be the place to go...

 

 

 

 

Shaner is right. Ask them if they used a road force variation balancing machine. Ask them how many lbs. each tire had. They could also put a new truck on the lift next to your truck and swap the tire/wheel assys to see of the vibration goes away.

Mmmikkke is also right. I had a new camry with a vibration similar to yours. It turned out to be a bad rotor. Not the braking surface,but the wheel mounting surface. It was uneven from one side to the other. Found it with a dial indicator.

GM-Tech Senior Enthusiast

GM-Tech

Posted
Posted

Alignments are covered without question from 500-7500 miles. From 7500-10,000 an alignment can be done under warranty with the service manager's approval. After 10,000 miles, it takes an act of congress to get it covered.

 

Alignments have nothing to do with vibrations. Cupping of the tires is most likely due to the toe setting. Very common, we see it all the time. Yeah, tires should be rotated every 6000 miles to even out the normal wear pattern.

 

Brake vibrations are VERY unusual in the full size trucks. I can't recall the last one I saw in here, if ever. The smaller front-wheel drive cars are pretty bad with this, but not the trucks. This vibration would only occur when braking, obviously. So if you're driving along at 60 mph and it's vibrating, it ain't the brakes.

 

You need to find someone that can road force balance your tires. A tire may balance out perfectly as far as weight goes, but if you have a stiff area of the tire, it forces the wheel assembly UP every time it comes around, just as if it was out of balance. The usual wheel balancer only balances for weight, not road force. They need something like a Hunter DSP 9700 wheel balancer. We have one but they're not common due to the fact they're like $15,000.00.

 

Driveline vibrations *usually* start to come in at lower speeds (35-40) and also usually more noticeable on accel.

JAMIEZ71 Enthusiast

JAMIEZ71

Posted
Posted

Tires cupping can also be caused by the alignment. Just because it's within specs doesn't mean tires will wear just right. I had a set of bfg tires on my 96 z71 and tires cupped bad on it. Took it to have it aligned and they said it's within specs. So what I did is I had them physically change the alignment to exactly what the specs said. After they done this I never had a problem no the new tires I had put on it.

As for the brakes with 131,000 miles your crazy. Maybe a set of drum brakes would last that long but never a set of disc brakes lasting that long.

MS3DALE Senior Enthusiast

MS3DALE

Posted
Posted
As for the brakes with 131,000 miles your crazy.  Maybe a set of drum brakes would last that long but never a set of disc brakes lasting that long.

 

 

 

 

 

131,000 miles is very possible,My '99 Silverado had almost 100,000 miles on it when I traded it last year and it still had the original front pads with over half the lining left,and I got almost 70,000 miles on the rear pads (actually only the right-rear-inner pad was worn,the other three had over half the lining left,very common on these trucks)

budone Enthusiast

budone

Posted
  • Author
Posted
As for the brakes with 131,000 miles your crazy.  Maybe a set of drum brakes would last that long but never a set of disc brakes lasting that long.

 

 

 

 

 

Well then I am crazy. They did last that long. When I had a speed sensor replaced at 127,000 I asked to check the brakes as I never replaced them, that is when I was told they had 60% left.

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