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02-11-2012, 09:14 PM
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#1 (permalink) |
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Lotus Addict
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Clicking sound from rear wheels
In the past week, I have noticed an unusual sound coming from my rear wheels.
At first I thought maybe the noise was due to something I ran over and got lodged in my tire. Nope. I didn't hear it until I am driving around in a parking garage, since it is at a lower speed, no wind, and the sounds are bouncing off the walls back into the car. The click sound emanated from both wheels, not all the time. It is erratic and most noticeable at really low speeds. I will try to have my buddy take a video of it. I asked him to walk along the car and he confirmed the sound was not coming from my head  We took a flashlight and inspected everywhere on the tire, brakes, behind the wheels. Nothing appeared out of the ordinary. Dont' know what it is! I even went as far as checking the lug nuts with a torque wrench to ensure they are properly tightened (I had a tire repaired about a a month and a half ago). I will be taking the car in next week to complete some work, and will be adding this to their work list... BTW, just to clarify, there is no noticeable impact on the the car's performance. It drives perfectly fine. Any ideas? |
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02-11-2012, 09:41 PM
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#2 (permalink) |
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GGLC MEMBER
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Hub, bearing or differential... how many miles on the car? Do you drive it aggressivly off the line? This happened in my s2000 and corvette from too many hard launches.
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05' Lotus Elise Touring/Sport, HT, BWR Supercharger, Turn Signals + Fins delete, 2bular Exhaust, Difflow 5 Diffuser, Nitron Quick Ratio Steering Rack, Sector111 Shifter Reinforcer + Stans DIY, BWR Sway Bar, Moroso oil pan, Twin Coolers, 55w 6k DDM HID's, Rota Torques/R888's, Exige Scoops, Exige Mesh Grills, ReVerie Front Lip, LED Angel Eyes, Braille, S111 Mirror, SS Brake Lines, Custom Stereo |
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02-11-2012, 09:58 PM
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#3 (permalink) | |
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Chicken My Fricassée
 
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Quote:
Glen
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CO 2011 Lotus Elise SC |
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02-11-2012, 10:25 PM
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#4 (permalink) | |
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Lotus Addict
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Quote:
Because 1, the TPMS still works for both tires. I would assume if it was somehow disconnected and bouncing around at high speeds, it would have failed at some point. And 2, what is the likelihood a TPMS sensors would just fall off. And the likelihood that BOTH would fall off? Not likely. And 3, the sound was a pretty loud clicking metallic sound, as if something hard was hitting against a spoke. A loose TPMS unit would sort of roll around at low speed against the bottom of the tire, which is rubber not metal. I mean it's still possible, if the car rolls fast enough to where it would sit against the tire high enough to drop onto the wheel itself, but that would require higher speeds. We heard the rate of the clicking sound slow down as the car slowed down. I slowed down to literally a snails crawl (like 1/8th of a MPH), and heard the click.. and it sometimes came from the right wheel, and then sometimes from the left wheel. very weird... |
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02-11-2012, 11:29 PM
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#6 (permalink) |
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Lotus Addict
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I really don't know because I don't know how much the tire rotates from inside the car, (other than looking at the tach, doesn't give you that level of detail
 It would click once or twice even though I've only moved a really slowly, like couple of feet. And the clicking would sound like a steady 2 clicks per second when I'm going like 8-10mph in a parking lot (and that's definitely several rotations per click). So I don't think it was sound was caused by something directly connected to the wheel or axle... Do you think it there might be something going on with the differential? Also it seemed to be more likely to exhibit the behavior if the road is slightly bumpy. Seems like something is loose somewhere. |
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02-12-2012, 08:26 AM
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#7 (permalink) |
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Star Certified SMOG tech
Join Date: Feb 2009
Location: San Gabriel
Posts: 641
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Tire rotate approx 5ft per rotation. So if you go slower the clicks slower? Therefore, must be related to the wheels/axle/diff/brakes pads/rotors/calipers/shield/bearings. Least likely the clutch or engine, because that relates to the engine rpm.
If you're in my area, come over. Let's lift up the wheels and drive on the air. If no load clicks gone, then could be the bearing. |
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02-12-2012, 08:48 AM
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#8 (permalink) |
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Registered User
Join Date: Jun 2004
Location: Livermore, CA
Posts: 969
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Are the wheel center caps (Lotus insignia) secure? Although I have not had a problem with the Evora, the caps on other wheels/cars I've had have occasionally worked loose to the point where they will "click" as the tire rolls. These caps are captive in the wheel, so they will not fall off, but they can make noise if loose.
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Joel '67 S3 Elan dhc (owned since 1970) '06 Audi A3 3.2 '10 Evora (Carbon Grey/Charcoal) |
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02-12-2012, 11:00 AM
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#9 (permalink) | |
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Registered User
Join Date: Aug 2007
Location: Frankfurt/Main, Germany
Posts: 456
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Quote:
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2011 Evora S 2+0 // carbon grey // diamond cut rims // charcoal leather // Schroth Rallye 3 ASM harness |
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02-27-2012, 05:22 AM
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#13 (permalink) |
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Painful Novice
 
Join Date: Nov 2011
Location: Arizona
Posts: 1,995
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If the shafts which run from the transmission to the wheels has CV joints then I vote for CV joints. Sounds much like my CV joints which failed on another (non Lotus) car.
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Storm titanium 2005 Elise with carbon fiber spoiler, BWR sway bar, BOE toe links, gPan2, LidBone, sector 111 wheel studs, Grey RAC Monolite wheels with toyo R1R, Team Dynamics 1.4 with Hoosier A6/R6s, Katana2 Supercharger, ECU with 265 flash. PPE headers w/decat, CEL angle eliminator, Silent touch catback, Rear Panel Eliminator, HKS intake, V2 fuel tank, Walbro255 fuel pump. HID lights. |
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03-04-2012, 04:36 AM
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#16 (permalink) | |
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Pirelli F, Michelin R
Join Date: Jul 2010
Location: Houston, USA
Posts: 333
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03-04-2012, 11:36 AM
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#17 (permalink) | |
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Lotus Addict
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Other half says she can't hear it on her side any longer. So it's an improvement but we still hear it on my side. Service advisor said the technician removed the wheels and cleaned the debris around the wheel. Not exactly a precise answer. I'll take it back when it becomes more obvious. Right now I'm just happy to have my car back  It's been an excruciating week. Yeah, you can say I'm pedal-whipped.
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04-10-2012, 10:22 PM
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#18 (permalink) |
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Lotus Addict
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Okay, the clicking is getting worse and worse with each passing week.
I don't think I've shared these videos with you guys, but the first one is the one I sent to my dealership and they've passed it onto Lotus, back in February. The second one I took just this Monday, which I just uploaded a few minutes ago. |
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04-11-2012, 11:50 AM
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#19 (permalink) |
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Likes to rent cars.
Join Date: Jun 2010
Posts: 1,014
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The clicking sounds a bit crisp. So I doubt it's the wheel bearings (when bad has rolling marbles grinding noise). CV joint perhaps? Would require you to remove the diffuser to inspect though.
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2011 Evora (New rental from Dollar Car Rental.) 2009 Exige S260 (Still with Hertz rental. GPS unit free every month.) 2005 Elise (Enterprise rental took it back cos I farted in it.) |
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