Front end vibration--1999 Park Avenue

Front end vibration--1999 Park Avenue

Posted in the Buick Park Avenue Forum

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Joe

Olympia, WA

#1 Aug 21, 2006
I have a vibration at 70 MPH that doesn't go away after new, well balanced Michelin tires are mounted. It has 62000 miles on it. Any suggestions? Thanks, Joe.
Ernie

Canton, IL

#2 Sep 8, 2006
I am having the same situation...right at 70 MPH and nearly the same mileage. Tried to troubleshoot it by giving it more throttle and letting off. Seems to be more evident while at a semi-coast. You seet his too Joe?
N D Blazen

Ypsilanti, MI

#3 Dec 5, 2006
I have the exact same problem. I thought it was the tires but after I got new tires its still there.
Sundance

Chanute, KS

#4 Dec 9, 2006
I have the same problem. I bought new Michelins and went into the shop and we spun each rim to make sure they were true and then balanced in grams and the same problem still exists. It started at about 55K.
dave - stanford mt

United States

#5 Dec 14, 2006
Hey People:
Exact same story - except I BOUGHT the car at 71,000, didn't drive it on the hiway til too late! Pretty dumb for a 58 year old guy. We've been through every hub, drive shaft and wheel. Must be in the transaxle, Buick says "well I'll be darn, what do you expect from our very best car, a smooth ride?"
dave - stanford mt

United States

#6 Dec 26, 2006
hallelujah! The problem is an easy solve. GM website (perhaps exclusive to GM shops) suggests rear wheel toe-in off by 1/16 inch can cause tires to "warp" and vibrate. It took City Motors of Great Falls MT one hour and 60 bucks to fix it! Bennet Motors, where I bought the car refused to look further after 4 visits, wanted an extra $4,000 grand to trade for a car which booked for $2,000 less than my Park Avenue!!! They would have dumped it on the auction - buyer beware! Avoid Bennet Motors all there ads are just hype - I KNOW!!...dave
Susan E

Midland, MI

#7 Jan 25, 2007
Oh gosh, I have a 2004 Buick Lesabre....sounds like the same problem. Began at around 30,000, now have 60,000 and went through 4 sets of tire, brakes, rotors done at least 2 - 3 times. It has been a ride from H_LL for the last 30,000 miles and Buick still says there is NOT a problem, and they can't find anything. HELP!! I spent $35,000 on a car I can't STAND to ride in.
Sherri

Washington, DC

#8 May 30, 2007
1999 Buick Park ave. I seem to be having the same the problem as a few others the car has 26,000 miles on it. when you reach 70mph the car vibrates.
The worst problem and most dangerous is the car is stalling with no warning at anytime sitting still, moving and most exciting in the middle of turns !!!! Buick can not seem to find a reason why !! They have fixed ,changed , rearranged !!!!
whatever possible ... and tell me the car is fine ..........any suggestions PLEASE !!!! This is my final hope for this car or SHE'S HISTORY.
Ryan

United States

#9 Jun 27, 2007
I have a 1998 Pontiac Bonneville with a similar (same?) problem. I can feel a front end vibration at 55mph and faster. Its related to the speed of the wheels. I run it up to speed on the rack and I can still feel it and see the front left wheel bouncing ever so slightly. I've tried new tires (all 4) new wheels, new wheel bearing, new axel half on the left side. Tie rods are tight. I cant put it into neutral and shut the motor off - no difference so I don't think its the motor mounts. I'm stumped.
Walt

United States

#10 Nov 25, 2007
Had the same problem with my 1998 Park Ave.
Fixed it by having the wheels balanced on the car.
That way the entire wheel assemblies (hub, brakes, etc.) get balanced.
However, the machine used predates the computerized wheel balancers now common.
Good luck in finding a shop that has the machine.
Art

United States

#11 Feb 7, 2008
I took the advice of Dave - Stanford MT comments & had an alignment done on all 4 wheels 1999 Buick park ave.The service person said he had to slightly toe the rear wheel in & that eliminated the 68 mph vibration.He said the rear tires want to roll outward at a certain speed and that is what caused it. With slight toe-in they run true at the higher speed. I have spent the bucks chasing this problem over the past 9 years.
John

New Carlisle, OH

#12 Sep 11, 2009
Art wrote:
I took the advice of Dave - Stanford MT comments & had an alignment done on all 4 wheels 1999 Buick park ave.The service person said he had to slightly toe the rear wheel in & that eliminated the 68 mph vibration.He said the rear tires want to roll outward at a certain speed and that is what caused it. With slight toe-in they run true at the higher speed. I have spent the bucks chasing this problem over the past 9 years.
How much is "slightly" toe-in the rear wheels? Can i ask where you got this done so that I get some information to relay to my mechanic?
John

New Carlisle, OH

#13 Sep 11, 2009
Art (Albuquerque, NM):
How much is "slightly" toe-in the rear wheels? Can I ask where you got this done so that I get some information to relay to my mechanic?
Terry

Georgetown, IN

#14 Sep 27, 2009
'95 Park Ave with persistent chassis vibration at highway (and lower) speed. Has been like this through three alignments, two sets of tires, numerous wheel balances, etc. later. Numerous shops acknowledged, and witnessed as passengers, the problem but had no solutions. We've owned it seven annoying years (it's the only car my 4'11" wife can see over the dash). New Michelins helped somewhat, but at speeds over sixty it still feels like going over a washboard. My old Astro cargo van rides better than this.
Dudley

West Chester, OH

#15 Oct 1, 2009
dave - stanford mt wrote:
hallelujah! The problem is an easy solve. GM website (perhaps exclusive to GM shops) suggests rear wheel toe-in off by 1/16 inch can cause tires to "warp" and vibrate. It took City Motors of Great Falls MT one hour and 60 bucks to fix it! Bennet Motors, where I bought the car refused to look further after 4 visits, wanted an extra $4,000 grand to trade for a car which booked for $2,000 less than my Park Avenue!!! They would have dumped it on the auction - buyer beware! Avoid Bennet Motors all there ads are just hype - I KNOW!!...dave
Dave, this is truly great information, as our Park Avenue has been one of the best cars we ever owned with 175,000 miles, but started vibrating after our daughter took it back to school. They checked all the tires and looked for the usual, i.e. mis-balanced wheels, etc. but the problem continued. I really appreciate this information, as it will most likely enable me to get the car fixed when we visit her at school this weekend.
mr shelton

Columbus, OH

#16 Aug 23, 2010
Sherri wrote:
1999 Buick Park ave. I seem to be having the same the problem as a few others the car has 26,000 miles on it. when you reach 70mph the car vibrates.
The worst problem and most dangerous is the car is stalling with no warning at anytime sitting still, moving and most exciting in the middle of turns !!!! Buick can not seem to find a reason why !! They have fixed ,changed , rearranged !!!!
whatever possible ... and tell me the car is fine ..........any suggestions PLEASE !!!! This is my final hope for this car or SHE'S HISTORY.
Ihave a 1999 buick park ave with 78,000 miles on it, vibrates at or about 66mph-70mph. I relpaced the back shocks my self, for 74.00 dollars it took away 90% of vibration
brooklyn

Oroville, CA

#18 Dec 11, 2010
The problem is I can't find that motor mount anywhere in CA. Hopefully by posting this maybe someone might know where to get one.
Donald

Kennett, MO

#19 Jan 20, 2011
I have a 2003 Park Avenue Ultra. It had a high speed viberation that would stop after 4 tenths of a mile and would go 1/4 mile as smooth as you would want, Then it would start to viberate for 4/10th of a mile again. I put a exhaust hanger where the pipe splits and forms two pipes. Seems the exh. system didn't have enough hangers and the pipes would start a harmonic viberation which would cancel itself out in just under a half mile. I also replaced a front transmission mount and that pretty much smoothed it all out. Transmission mount purchased at O'reilly Auto Parts. $ 62.50
vequinox

Windsor, CT

#20 Aug 9, 2012
OMG!

So glad to see this posting. I have a 1999 buick park ave with 210k. Looks great. Engine is strong.

It was running fine, but this vibration came along a few months ago. I replaced one bent rim, and have new tires. new control arms, tie rods, front rotors, pads and struts!

After 2 alignments 3 tire balancing (and finally rotating and rebalancing), the shake is no better. I am sure that it is in the axle. It is right at the suite spot for this car for cruzing 65-70! But I also notice it at slow speeds sometims. Ugh. I will try the hangers and the engine mount (recently ordered.)
2000PA_vibration

Chapel Hill, NC

#21 Aug 14, 2012
vequinox wrote:
OMG!
So glad to see this posting. I have a 1999 buick park ave with 210k. Looks great. Engine is strong.
It was running fine, but this vibration came along a few months ago. I replaced one bent rim, and have new tires. new control arms, tie rods, front rotors, pads and struts!
After 2 alignments 3 tire balancing (and finally rotating and rebalancing), the shake is no better. I am sure that it is in the axle. It is right at the suite spot for this car for cruzing 65-70! But I also notice it at slow speeds sometims. Ugh. I will try the hangers and the engine mount (recently ordered.)
I'm having the same problem. Did the hangers and engine mount end the vibration?

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