Front end shakes at 45 mph.
#1
Posted 03 February 2012 - 07:05 PM
I have a 2010 rts with 8,000 miles on it. Went on a 2500 mile trip last summer and have a bad front end shake at 45 mph. The faster you go over 45 it seems to get better but it is still there. Took it to the dealer and balanced the front wheels and checked alignment, but that wasn't it. Then they said the sway bar was loose and they tightened it, still was there. Then they found a small stone in the back sprocket and took it out and thought they found the problem. It was better for about 500 miles but now it is as bad as it was from the beginning of the problem, don't know what to try next.
Has anyone out there had a problem like this or have any suggestions on what I should try next? Like I said at 45 mph I can actually see my tires shake really bad.
Thanks.
#3
Posted 04 February 2012 - 05:12 AM
ronnybob, on 04 February 2012 - 01:35 AM, said:
I guess the dealer was thinking the same thing or a bad wheel and took two wheels off of a new RT and still had the same shaking. I am wondering if if is actually in the front end or a vibration from the back. Thanks for your reply.
#4
Posted 04 February 2012 - 08:23 AM
#6
Posted 13 February 2012 - 06:15 PM
Just picked up my RT-S tonight after a week at the shop. We did have some bad weather over the weekend and the roads are full of salt so I trailered it home, hopefully when it's nice again I can take it out for a test drive. While it was at the dealer they inspected drive belt and sprocket condition, adjusted the belt, checked tire pressures, checked all wheel bearings, checked front wheel balance, and checked wheel alignment. One wheel was out of alignment and adjusted it to 1.5mm toe in. They took it for a road test and said drives straight and did not shake, hopefully we are good again.
Thanks.
010 Black rts
#7
Posted 14 February 2012 - 01:55 PM
010 Black rts, on 13 February 2012 - 06:15 PM, said:
Just picked up my RT-S tonight after a week at the shop. We did have some bad weather over the weekend and the roads are full of salt so I trailered it home, hopefully when it's nice again I can take it out for a test drive. While it was at the dealer they inspected drive belt and sprocket condition, adjusted the belt, checked tire pressures, checked all wheel bearings, checked front wheel balance, and checked wheel alignment. One wheel was out of alignment and adjusted it to 1.5mm toe in. They took it for a road test and said drives straight and did not shake, hopefully we are good again.
Thanks.
010 Black rts
Intersting I have a 2012 RT with 600 miles on it that gives a vibration from around 27 to 34 MPH goes away the comes back from around 66 to 74 MPH. The dealer said the first time i brought it back the said one of the front tires was a little out of balance. At the 600 mile mark I bruoght the problem up again and the dealer sez he cannot fond a problem. I have learned from another forums that there is a steering sensor in there some where that should be checked. I still have to go back there, but at least I'll have something to talk to the guy about.....Thought I'd pass that along...Ron
#8
Posted 17 February 2012 - 08:39 PM
Tuck
#9
Posted 17 February 2012 - 10:16 PM
Tuckmiddle, on 17 February 2012 - 08:39 PM, said:
Tuck
Its a pretty sad tech that cannot cure a leak in the RT air suspension, and get the automatic controls working. There are service bulletins for both issues...although you could also have a couple of different failures not covered there. To address the leak, first have them check the valve core in the Schrader valve. A loose or failed valve core is the most common source of leaks in a Spyder that held air before. If that passes the leak test (soap solution) they need to check the air piping and air bag for leaks. The air piping service bulletin may not apply, but it is a good source of information. If everything checks out there (some slow leaks are hard to find), they need to check the release valve function, following the steps in the shop manual. As for the "Manual" indication, the most common cause is the high and low limits on the ACS being set the same. The dealer needs to check the ACS settings with BUDS, and perform the calibration procedure in the service bulltein if the limits are the same. There can be other causes, but that is the most common. BTW, in "Manual", the switch still works...just press it repeatedly to adjust the level (which will not show on the gauge).
#10
Posted 28 February 2012 - 04:37 PM
010 Black rts, on 13 February 2012 - 06:15 PM, said:
Just picked up my RT-S tonight after a week at the shop. We did have some bad weather over the weekend and the roads are full of salt so I trailered it home, hopefully when it's nice again I can take it out for a test drive. While it was at the dealer they inspected drive belt and sprocket condition, adjusted the belt, checked tire pressures, checked all wheel bearings, checked front wheel balance, and checked wheel alignment. One wheel was out of alignment and adjusted it to 1.5mm toe in. They took it for a road test and said drives straight and did not shake, hopefully we are good again.
Thanks.
010 Black rts
Took my 2010 RT-S for a 50 mile test drive last night and so far so good, no shake at all. I don't know what was the actual fix but at least it is fixed.
Thanks.

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