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2000 Escalade Shakes At 70

silversport

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silversport Enthusiast

silversport

Posted
Posted

My 2000 Escalade (think 1999 and older Tahoe/Yukon/Denali) gets a violent shake that appears to be in the front and transmitted into the steering wheel...

 

...it only happens at 70MPH and gets worse the faster you go...I have only taken it to 80MPH...When you decelerate, the shake stays until under 70MPH...

 

A check of the front end shows that everything appears to be tight with no play...my truck has just under 60,000 miles...

 

I have had it to my mechanic and the tires and wheels were re-balanced as well as something in the drive shaft replaced (U joint) as it was binding but no change as he thought that might have been it...

 

I cannot say for sure if this just started as even though I have had this truck since last November, I have rarely had it to 70MPH since I do mostly City driving with it...

 

I believe it has original shocks (Bilsteins that look good) but I replaced the 16" wheels and tires with 18" Cadillac take offs with Bridgestone tires...they are as new.

 

Any ideas???

 

Bill

jrrod2004 Senior Enthusiast

jrrod2004

Posted
Posted
Tires could be out of round. Even then, they can still be balanced.

 

 

same thing john said, check the road force of the tires, balance em, make sure the brakes are not sticking and nothing is loose on the suspension.

silversport Enthusiast

silversport

Posted
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Posted

I will check that but these guys I have used for 25 years and they caught the out of round tires on another vehicle of mine...still, thanks for the insight...

Bill

2018GMC Senior Enthusiast

2018GMC

Posted
Posted
I will check that but these guys I have used for 25 years and they caught the out of round tires on another vehicle of mine...still, thanks for the insight...

Bill

 

Have you checked the ball joints, tie rods and wheel bearings for any play?

 

If it is AWD triple check the front half-shafts (CV-Joints) for any play (grab the half shaft close to the inner and outer cv joint and see if you can move it at all. Carefully inspect the CV boots. If any are torn, most likely you need a new CV joint. The grease will excape through the boot then water and road grime gets in and destroys the cv joint. Find an empty parking lot and do some tight full lock left and right turns. Do your hear any clunking or clicking? Do you hear a clunk when you put it in drive or reverse at idle. (may have to have someone listen outside of the vehicle.

silversport Enthusiast

silversport

Posted
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Posted

I crawled under it this morning...I did not have it on a lift but I could find no play in anything and the CV boots all look good...no grease leakage...I think there is something going on in the front end though as it seems to feel really crappy when driving over really broken pavement or railroad tracks...I mean worse than usual...I have an appointment on Monday to get it looked at again...thanks for the responses...it has been helpful and I keep learning so that's a plus!...

Bill

silversport Enthusiast

silversport

Posted
  • Author
Posted

mine is a true 4WD not AWD (transfer case and low gears)...I will check the turns lock to lock...no clunk when putting into reverse...thanks,

Bill

silversport Enthusiast

silversport

Posted
  • Author
Posted

no clunk when putting into reverse...no noises or binding when turning front wheel lock to lock...I found a minor discrepancy in the air pressure (a couple of pounds difference) but I don't think that is it...I'll keep looking...

Thanks,

Bill

Tucson_02Silverado Senior Enthusiast

Tucson_02Silverado

Posted
Posted

When did the shaking start?

Right after the change to 18" wheels? was the new tires at the same time?

 

If it was a fair amount of time, 1000 miles or so, after the wheel/tires then it could be the shocks. At a certain spring travel rate the shocks could start to "oscillate" different from the springs and violate shaking results. Going to slightly more extreme to that is that the front bearing hubs is just starting to loosen up as well and it all exagerrates itself at speed.

silversport Enthusiast

silversport

Posted
  • Author
Posted

thanks...you really think it could be shocks???...I have been thinking that myself...I believe Bilstein's shouldn't do this at 60K miles but...I don't know the care they had from the previous owner although it appears they took decent care of it...

I just noticed it but the wheels and tires were replaced about 3K miles ago...I just don't get the truck on the highway much and not to 70mph...

Thanks,

Bill

silversport Enthusiast

silversport

Posted
  • Author
Posted

alright...went to my trusted mechanics and they put my truck up on the lift for me and put all four wheels into motion...my right front tire has a hop in it...not in the wheel...in the tire...and the other three have varying degrees of wobble...in the tires and not the wheels...I need 4 new tires it seems.

I bought these as take offs on ebay so as I am not the first owner, I have no warranty with Bridgestone...lovely...

Does this sound plausible for the front end shake at 70MPH...?

Anyone have some suggestions for an all season tire in 285 60 18 for the Esky...mostly road driven rarely if ever taken off road but must be able to handle Winter and Rain...

wunnnerful...

Thanks for all the help so far...

Bill

silversport Enthusiast

silversport

Posted
  • Author
Posted

road force balance ($100 bux at Discount Tire) and they found one tire out of balance...problem is still there but yet again lessened...change to new Bilstein's today...I can report back but not much of a change...here is the response on another thread:

 

well, my new Bilstein's were installed and the early returns are: My 60K Bilstein's were probably not dead (of course I didn't think they were yet)...not by a long shot...the ride is firm but not too much different so far than the GM spec'd Bilstein's that came with the Cadillac smooth ride option...the Bilstein's I had put on are the Heavy Dutys...

I saved a bit with free shipping and the 10% off coupon...

Bill

95Sierra2500 Senior Enthusiast

95Sierra2500

Posted
Posted
alright...went to my trusted mechanics and they put my truck up on the lift for me and put all four wheels into motion...my right front tire has a hop in it...not in the wheel...in the tire...and the other three have varying degrees of wobble...in the tires and not the wheels...I need 4 new tires it seems.

I bought these as take offs on ebay so as I am not the first owner, I have no warranty with Bridgestone...lovely...

Does this sound plausible for the front end shake at 70MPH...?

Anyone have some suggestions for an all season tire in 285 60 18 for the Esky...mostly road driven rarely if ever taken off road but must be able to handle Winter and Rain...

wunnnerful...

Thanks for all the help so far...

Bill

 

Yes, that sounds plausible. Typically it would be the tire that goes bad, especially if you bought them used. Most used tires I've seen have SOMETHING wrong with them.

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