Slight vibration in steering wheel at speed between 50 and 65. Replaced Tires and balanced. this helped but did not completly go away. I then rotated tires to see if it moved to the rear, Made no difference. Had Wheel bearing and Outboad axle, and sway bar pins replaced within last two months. Seems like it might be in drive train some where. Vibration is most noticed on smooth roads that have recently been resurfaced
If a hub bearing was bad, it almost always would make noise, more so when changing lanes at higher speed. Outer CV joints make a loud low pitched rattle when turning (corners). Inner CV joints raise hell at high speed- bad shake! Sway links affect cornering and clunk when hitting rough patches of road surface.
Is the vibration worse at 65 than at 50? If so, you are dealing with a wheel balance situation. Find an old time front end shop that will check the balance on the vehicle. You will have to turn off the traction control to do this or use an on-the-car wheel balancer.
If you feel it at some low speeds at it comes back at other higher speeds, then you are dealing with tire roundness. Possible more than 1. More common than we would like.
SOURCE: cadillac Deville 1996 front end waddles at slow speeds.
it sounds like you may have a bad set of wheel bearings on one side or the other.which would mean you have a bad cv joint or one that is going bad. you may want to try to figure out which side the wobble is on and inspect that side.i suspect its going to be the side where you had the problem with the tire.
SOURCE: I have a 2004 sls
First of all I would recommend getting Goodyear or Michelin Brand tires for the Cadillac or any other vehicles. I've had very good luck with these brands, as a technician for tires.
Secondly, I would make sure that the tires are inflated to the max. pressure recommended by the placard on the door.
Generally, 35 psi is the max. cold temperature. But, check to make sure it isn't higher for a heavy duty suspension model, if that's what you have. For instance, on my 1997 Cadillac Deville Limousine I have a spec. of 44 psi which is higher than the 35 psi I usually recommend for regular Cadillacs (say like my 1990 Cadillac Deville).
High speed vibrations can usually point to tire problems, as you probably already have suspected.
Good luck on making your Cadillac run like a dream.
SOURCE: 1990 Cadillac deville was running
I would check the fuel pressure, sounds like a fuel delivery problem...possible dirty fuel filter. The vibration is probably due to a missfire. Have you had had a tune up lately? Check for vacuum leaks. I hope this helps.
SOURCE: 2002 Caddy DeVille - slight vibration 60 to 75 mph
IF the vibration is there with the non-snow tires and gone with the snow tires, the it would be safe to assume that the new (non-snow) tires are at fault. they would have an internal cord separation problem (NOT GOOD). now if the problem is still there with the snow tires now and it was not last winter, then get your car checked for either a steering linkage problem - too much wear from a steering knuckle, also get your drive shafts checked - front wheel drive vehicles have two, rear wheel drive has a main shaft from transmission to differential, and the ones with rear independent suspension and rear wheel drive has two more driveshafts from differential to wheels. It is not a major problem right now but it will get bigger so kill the problem before that. you are on the hunt.lol. hope this helps you.
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