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Old 07-23-2012, 02:48 PM   #1
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Vibration / shudder at various speeds

We recently bought a 1999 Jayco Eagle Class C, 24', 24, 000 miles and well kept, through a private sale, with near - new Toyo Tires. We noticed a shudder while driving but assumed it was due to sitting over the winter months at the previous owner's home creating a possible flat spot on one or more of the tires. The previous owner agreed it must be from that as it wasn't there before. This is what we did to try to resolve the problem:

Front tires are LT 225/75R/16 M&S (E)
Back tires are LT 215/85R/16 M&S (E4) (why different in size/E rating from front???)

1) Had tires re-balanced, shudder changed to slower speeds where it was higher speeds before
2) Travelled 200 miles to try to get wheels to round again ( if it was from sitting over the winter) no improvement
3) Took vehicle in again for balancing adjustment - no improvement and was told it was cheap Toyo tires (tire place didn't sell Toyos and recommended Michelins but we figure that was to drum up business). They said they had done all they could to fix the shudder. They have a good name as a local business - not a fly-by night type of business.

Any suggestions as to what to try next???? We thought we would try a place that sells Toyo but not sure what else they could do anyway. Sadly, no receipt kept for tires as the Mo-ho was the previous owner's mothers and she was elderly and didn't keep receipts. Your ideas/experiences would be most welcomed.

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Old 07-23-2012, 02:55 PM   #2
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I might try the ball joints... I don't think I've ever heard of a 'cheap' Toyo tire.

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Old 07-23-2012, 06:31 PM   #3
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How new is "newer tires"? Radials don't generally get flat spots like the bias plys.
Were the tires balanced and checked by a "competent" shop? Could it be something else like your calipers or e-brake not releasing correctly? Just some other stuff to check. Also, thinking about it, how's your tranny fluid...burnt/low? If it slips it could seem like a shudder.
Geo. & Pam Banks
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Old 07-24-2012, 06:07 AM   #4
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If balance was already checked and is good I would check the alignment next and then ball joints. Tires don't really flat spot anymore
Todd, Shirley, and the Maddawgs Buster & Precious
2011 Itasca Cambria 30C
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Old 07-24-2012, 07:32 AM   #5
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Check the tire dates. Mine were 7 y/o in front ad 10 y/o in the rear and did what yours is doing until one tossed a tread.
Don and Mary
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Old 07-25-2012, 07:47 PM   #6
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Continuing the search...

Thanks for your submissions! The tires are all 2011 tires. Taking vehicle to another tire shop for 2nd opinion. Tire shp has suggested a 'bad' tire as a possibility but they have not seen the vehicle yet. Apparently this can happen - tire could be 'out of round' due to faulty manufacturing. We shall see tomorrow. Will inform of the findings, if any.
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Old 07-25-2012, 08:27 PM   #7
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In my cadi I had a bad shudder and shake that got worse the faster I drove. It turned out to be a bad rim. Replaced it and the vibration went away... just a thought.
Richie, Rose and our Australian Terrier Harley
2004 Bounder 35R, 2012 ACME EZtow,2012 Kia Rio Hatchback
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Old 07-29-2012, 04:59 PM   #8
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Cool Update

Took the unit to another tire place and he took it for a ride and stated it was a definitely a tire out of round (manufacturer issue). Said he could pull & check each tire if we wanted him to, but suggested he take some air out of all of them ( the previous place had 80lbs) - he took out 5 lbs and it did help a bit. If we can maintain 60/65kms (55 ish mph), we don't notice it much. Might just try to live with it as we are in $200 for balancing (which did nothing).

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