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Suspension | Chassis | Brakes -- Sponsored by 949 Racing Relating to suspension, chassis, and brakes. Sponsored by 949 Racing. |
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08-14-2020, 02:05 PM | #15 |
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Noises like this are tough. I'd try giving all suspension components a full check with a wrench. Then start looking at wear items. Wheel bearings tend to make a whining noise when turning. I'd also check the springs to make sure the collar didn't back off, and look at steering components.
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The Following User Says Thank You to NoHaveMSG For This Useful Post: | Baldoak (08-14-2020) |
08-16-2020, 03:51 PM | #16 | |
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Check this gnarly boot out: I think this is it. Since this boot is in this condition, ill replace tie rods on both sides and replace LCAs in the near future. EDIT: Will update this thread with results of course.
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The Following User Says Thank You to Baldoak For This Useful Post: | norcalpb (08-17-2020) |
08-16-2020, 03:59 PM | #17 |
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How many miles does your car have?
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08-16-2020, 04:04 PM | #18 |
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08-24-2020, 10:39 AM | #19 |
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I had a similar noise! Turns out a wheel weight came off my RPF1 and was spinning inside of it. I had it removed and rebalanced at a different shop.
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08-31-2020, 01:58 PM | #20 |
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I've installed SPL front end outer tie rods this weekend. This solved part of the noise I was experiencing. Steering feel is improved slightly as well, so I'm glad I made the upgrade. I also discovered very aggressive tire wear on the inside shoulder of the front tires.
However, some knocking still persists. With the help of another person laying on the floor and holding various parts while I bounce the front end, we are getting close to locating the source of the noise I'm still hearing. He identified it as coming from near the opening for the oil pan in the aluminum under tray. We will take the tray off and try to hunt the sound down tonight. I've verified that it's not my front lower ball joints, and doesn't seem to be coming from my endlinks, coilovers, or swaybar, but the sound does reverberate through these items. Any bets on what I'll find?
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Last edited by Baldoak; 08-31-2020 at 01:59 PM. Reason: accidentally a word |
09-08-2020, 10:11 PM | #21 |
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I had a nasty noise coming from calipers a while back, but some of it has returned. As somebody else said, it may but be related. The noise/vibration was so bad, I would have never guess d it was brake related (in my case).
At first, it was some worn out isolator for caliper bolts (I believe). The second time, it was the pad assembly knocking hard, fixed by replacing pads (they were about to go anyway). That, or try to expand those clips a bit more for a tighter fit. It's a no cost check, and the bolt isolators are cheap parts. If I remember correctly, my mechanic said they didn't appear on his mechanic software diagram (Mitchell or something). |
09-18-2020, 10:54 PM | #22 |
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Well, issue solved.
- Installed SPL outer tie rods - Replaced front wheel hubs - Replaced lower heim joint on passenger side endlink (it was tight when I got it so I figured maybe it was causing some noise I'm not sure which of these items was the true culprit, but the car is driving amazingly well after an alignment. It tracks straight and true, with no unexpected knocks or taps. I wish I could say what was the exact cause of the noise, but I think it may have been multiple causes. Just to reiterate, my car has 75,000mi on the clock so things are starting to go.
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09-21-2020, 07:51 PM | #23 | |
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09-21-2020, 08:04 PM | #24 |
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every time i see this thread, it reminds me of a story i don't fully remember.. what can i say, humfrz is the story teller 'round these parts. what i don't remember, i'll make up.
when my mechanic brother was in school, one of the old shop teachers was telling stories when he first started in the business. one of the teachers first days being a mechanic was at a chevy dealership, back sometime in the 70's. a nice young man came back after a week of owning a brand new chevy van, saying he loved the new van but there was a knocking sound in the right front whenever he turned left. everything from the suspension to door hinges was checked, common wearing components were replaced, re-checked, always the same problem. they spent weeks trying to diagnose this knocking noise that was always there, but could never be found. finally the front fender was removed when they were running out of things to check for this phantom knocking sound. inside the fender, they found a washer tied to a string, with a note from the assembly line "how long did this take you?"
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09-21-2020, 08:20 PM | #25 |
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I have changed 5 front hubs using the factory torque spec, the ones I replaced again where still tight.
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07-22-2021, 02:49 AM | #26 |
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First: Sorry for the necro.
Second: Any time travelers coming across this thread in hopes of ridding themselves of front-end suspension noise will want to seriously inspect their swaybar and endlink setup and doubt their ability to actually install these parts optimally. As far as I can tell, after having addressed my front-end suspension far too many times to count, the most likely source of noise is going to be your swaybar bushings or your endlinks. This isn't exactly ground-breaking information, but I do want to provide information on my experiences, because so many other ft86 member's experiences have helped me. Our cars are fairly light weight and have some fairly stiff chassis, so getting your suspension dialed in just right is a serious undertaking - the smallest details overlooked can manifest noise and binding. Typically its these items causing your noises:
One last point: there's a reason your car was sold to you with rubber bushings and grease-packed endlinks. If you are running poly bushings, bigger bars, or spherical bearing endlinks, SOME noise and binding is unavoidable, particularly when driving at low speeds like through a rough parking lot. Hopefully these observations help someone else down the line.
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