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| Ticking when rolling, not engine and not a card in the spokes, (Page 1/1) |
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jamin
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FEB 05, 04:54 PM
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My 88 3800SC recently started to make a ticking noise from the left rear wheel well. Not engine related (same engine on/off) or brakes (either). But when coasting to a stop its clearly heard. At speed it's more of a buzzing felt. Attached is a video from my phone ziptied in the left wheel well, you can clearly hear the noise. Does come and go, you can hear it stop at one point. Any suggestions on where to start, transmission, shaft, brakes? Thanks, Benjamin
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Patrick
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FEB 05, 05:32 PM
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| quote | Originally posted by jamin:
Attached is a video from my phone...
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Video cannot be "attached" here. Upload it to YouTube and then link to it here.
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jamin
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FEB 05, 05:41 PM
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Mike in Sydney
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FEB 05, 05:43 PM
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Check the CV joints and wheel bearings. Raise the car. put jack-stands under it in the proper places. Securely chock the front wheels to keep the car stable. Release the emergency brake. Place the car in neutral and rotate the left rear wheel by hand. If you get clicking or grinding noises or if the motion of the wheel rotation isn't smooth, you've likely found the culprit.
BTW, don't just replace the offending part on that side. Change both sides. because the chances are the other side is going to die soon.
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Patrick
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FEB 05, 05:48 PM
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| quote | Originally posted by jamin:
First time ever uploading to youtube, sorry old guy. Lets see if it works.
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Great use of a cell phone! 
I'm probably older than you  , but here's how to embed a YouTube video.
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theogre
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FEB 05, 06:29 PM
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| quote | Originally posted by Mike in Sydney:
Check the CV joints and wheel bearings. Raise the car. put jack-stands under it in the proper places. Securely chock the front wheels to keep the car stable. Release the emergency brake. Place the car in neutral and rotate the left rear wheel by hand. If you get clicking or grinding noises or if the motion of the wheel rotation isn't smooth, you've likely found the culprit.
BTW, don't just replace the offending part on that side. Change both sides. because the chances are the other side is going to die soon. |
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Yup...
See my Cave, Safe Jacking
⚠️ Often can't Hear noise w/ wheels unloaded.
Many times can Feel iffy Hubs and wheel bearings. Rotate wheel slowly and very little hand pressure to feel binding as bearing parts hitting high spots etc.
If you replace or pull axles or hubs, you Must use New Axle Nuts and Must Be Correct type.
See my Cave, Axle
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Dr. Ian Malcolm: Yeah, but your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should.
(Jurassic Park)
The Ogre's Fiero Cave
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jamin
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FEB 05, 06:43 PM
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Sounds like I need to pull the axels and replace the bearings while I'm at it...on both sides. Will definitely fix it, was worried it was transmission but doesn't sound like it.
Haven't been on PFF in a while, not sure what Ogre's cave is, but link is broken on email and top of webpage.
Thanks, Benjamin
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Patrick
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FEB 05, 07:07 PM
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| quote | Originally posted by jamin:
Sounds like I need to pull the axels and replace the bearings while I'm at it...on both sides.
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The rear hubs made a loud squawking noise on my Formula when they began to fail. I replaced them with rear hubs from a low-mile '84 Fiero parts car. I only replaced the bad side at first... but sure enough, the other side began to squawk a few months later. My parts car again came in handy. 
| quote | Originally posted by Patrick Here:
When my '88 Formula started making "squawking" noises from the back, I jacked up the rear end and soon discovered what the problem was. When I grabbed the driver's side rear tire at 3 and 9 or 6 and 12 and push/pulled the assembly a bit, it was pretty obvious the wheel bearings were shot. Not only could the excessive play easily be felt, but I could see the brake rotor moving back and forth while the caliper was stationary.
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Raydar
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FEB 05, 10:51 PM
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Odd that it only seems to do it above a certain speed. Doesn't do it when you first start out, or just before you come to a stop.
I won't venture a guess as to what it might be, as I've never heard a noise like that. (Well... except for when someone's driveshaft got an industrial sized zip-tie attached to it.)
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theogre
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FEB 06, 08:49 AM
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I listen to video again...
Seems Noise stops when hit the brakes to finally stop the car.
That can be bad hub(s) or iffy brakes.
Example: Rear brakes have a clip on the piston to prevent inner hitting the rotor when Not using them. Missing/damage Clip then Inner pad can to weird things and maybe makes weird noise.
Note that Hubs and Wheel bearing in front have some play because bearings are not "preloaded."
If brakes have bent dirt shields or iffy 3rd party rotors that can make weird noises too.
Pull the rotors and look at them for signs of hitting. Outside diameter and/or "hat" of rotors can hit the shield and other things.
Use a real computer to visit cave and a lot of other site. All phones and some "tablets" have strip down browsers that often cause problems even for sites built for HTML5.
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