Question about 2003 Mercury Grand Marquis
In the UK we would say 'have the car tracked' .. the wheel alignment checked and adjusted, which is a relatively straightforward and easy job.
However, be aware that there are other causes of tyre wear which isn't rectified by having the wheels aligned.
A bent or damaged steering arm can cause tyre wear. I once owned an old Mercedes that quickly wore one front tyre. Despite having the wheels tracked - aligned - three times, the tyre still wore. It wasn't until I looked under the car myself and found a damaged steering arm ...
A worn ball joint or worn/soft rubber bush can cause tyre wear. Having the wheels aligned cures nothing without first identifying the fault. I own a 1998 Jeep Grand Cherokee which, I am aware, has worn rubber bushes in the front steering/suspension set up. The front tyres wear badly, caused by the worn bushes. The tyres need replacing soon anyway, but I'll wait to get the tracking-alignment- done until after I've replaced the rubber bushes/tyres.
You've had wheel alignment done a couple of times and the problem of worn tyres is still there. It's not the wheel alignment at fault .. there's some other reason such as worn ball joint/rubber bushes or maybe impact damage to a steering arm.
The best option is to get a workshop to put the car up on a hoist for inspection. Tell them that wheel alignment ISN'T the cause of your uneven tyre wear. Any half-decent workshop should be able to find the cause within a few minutes.
A car which has suffered severe side impact - and has been repaired - can have a twisted/misaligned body. This too can cause uneven tyre wear
Posted on Mar 07, 2017
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Posted on Jan 02, 2017
SOURCE: I have a 1997 Mercury
If its not the bearing and your Mercury is front wheel drive, it could be the "CV" joints.
It could be both....
Is the wheel rubbing the brake caliper?
Is something like the wheel well liner rubbing the tire(airflow pushing it into tire)?
Jack the tire off the ground and rotate it by hand. Push in & out at the top, sides, and bottom of the tire. Little or no play is considered acceptable. If you get a "clunking" sound and/or a lot of play the bearing(s) are bad. (If front wheel drive, chock rear tires, put transmission in neutral so you can rotate tire.)
Hope this helps.
Posted on Aug 06, 2011
SOURCE: 93 Mercury Grand Marquis LS.
if all lugs are tight then you have a wheel bearing that is bad. you jack up the car support it by stands on fram and take a long pice of wood and put it under the tire and to the ground pry up ward then with presure try to move the wheel with you hands if you can move it like all over then thats the bearing that is bad. if you dont have a long board you can put one hand one top edge and one on lower edge of tiere and try rocking it, if it rocks aound then you know that vbearing is bad. hope this helps you
Posted on Aug 06, 2011
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