95 Lesabre vibration. At wits end!

[tdc1948]

Originally Posted by Totes

After all was said and done, I had discovered that there was a bit of corrosion on the inside of a couple of the rims. This corrosion prevented the tires from being balanced correctly because the chunk of corrosion was near the center of the wheel, around the inside where the lugs go through the rim That prevented the rim from seating flush on the balancing machine, as well as seating flush on the hub when the wheels were mounted on the car, So, they were never spinning true until I cleaned the corrosion off with a die grinder. She rides like a "Champ" now. "This is a Word to the Wise".

Glad you solved your problem!

I'll chime in with this, in case someone else has similar vibration and nothing else mentioned here works to cure it.

I had similar with my '98 LeSabre: unpredictable vibration, especially but by no means only at 65-75 mph. Balancing and re-balancing many times did no good, and tire shops could find nothing wrong with tires or wheels. So I finally took it to a dealer, who gave it a Road Force test (high-dollar machine that measures with great accuracy).

Result: three tires were so far out of round as to be unbalanceable, as also one wheel. Flash forward...

After new Michelins (with a big trade-in allowance from the egg-shaped Tiger Paws), and $90 for a professional wheel-straightening, the LeSabre rides as it should, smooth as silk on good roads.

[Totes]

Your not the only person I have heard of that had problems w/ Uniroyals. Were they the" Self Sealing" type? I heard that they were nightmares.

[tdc1948]

Originally Posted by Totes

Your not the only person I have heard of that had problems w/ Uniroyals. Were they the" Self Sealing" type? I heard that they were nightmares.

I don't think so, but I'm not sure. I bought the LeSabre used from a dealer, and the tires were new cheap ones that the dealer slapped on. The vibration was there from the very start, and/but it's hard to tell how much of it was due to out-of-round tires and how much to the bent wheel. They may have been bad from the start, but if so, not bad enough for the run-of-the-mill balancing machinery to catch. It took the Road Force test to find the problem.

[seanohio]

This is curious--the mechanic I went to for a similar problem (also a 95 LeSabre) said my issue was engine performance because it spuddered during acceleration, and when I removed my foot from the gas pedal, the vibrating stops regardless of speed.

[Totes]

Where do you feel the "vibration" ? Floor or steering wheel, or seat? Sounds to me like there could be a misfire. Maybe fouled plug , crossed ignition wire, clogged injector, or possible ignition breakdown. 1 of the coils possibly.