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post #1 of 5 (permalink) Old 01-03-2017, 11:35 AM Thread Starter
Just_Stig
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Car vibration @ 80MPH

Hi all,
Just got back from a 2k miles road trip and I noticed that the car vibrates fairly badly at around 70-80mph.

It's through the entire car and not just the steering column and I'm fairly sure it's not warped rotors as the car vibrate when cruising along on the high way.

The tire is still the original OEM tires (dunlop I think?) and they have had 45k miles on them.
I rotate my tires frequently and they were just had an alignment done due to dealer doing the bumpstop for the coils.

I did take it to a tire place to do spin balancing mid way through the trip to see it would help but it was 40 bucks down the drain.

I was wondering if anyone has a similar how'd you solve it? Should I try for road force balancing again before buying new tires?

Thanks
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post #2 of 5 (permalink) Old 01-03-2017, 01:30 PM
arathol
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Probably need new tires .
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post #3 of 5 (permalink) Old 01-03-2017, 03:42 PM
Road Trip
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Two types of tire balancing, the regular spin balance without resistance force applied to the tire during the spinning process, and road force balancing which applies a force against the tires (mimicking the force the road exerts into the tires). Have on several occasions years ago, had my tires regular spin balanced, but that did not solve the vibration problem (as alignment and other things were already eliminated as a potential source), then when I had them re-balanced with the road force method, vibration went away. Last few decades, all my replacement tires are road force balanced (and have had dealerships do that to tires on new vehicles when they could not otherwise remove vibration).

However, as @arathol noted, with the amount of mileage you have on your Dunlap's, they probably need replacing, and strongly urge you to consider getting your replacement tires road force balanced at the onset.
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post #4 of 5 (permalink) Old 01-03-2017, 04:00 PM
Chazzy J
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Agreed with @Road Trip

On another note, 45k on the Dunlops...well done my friend. Not many people have had that kind of luck with those tires -- in fact some people report them being junk at 20k miles. Time to get rid of those! Don't waste any more money on them
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post #5 of 5 (permalink) Old 01-04-2017, 08:39 AM Thread Starter
Just_Stig
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Thanks all for the reply.

Yesterday evening I took mine to discount tire where they had a road force machine.
After having them roadforce balanced, it seems to have fixed it after 2 commutes.

I'm almost down to the wear bar so I plan on getting another 10k miles out of these before I switch them
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