Front coil spring bad? - Mazda3 Forums : The #1 Mazda 3 Forum
 
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post #1 of 9 (permalink) Old 01-04-2017, 10:04 PM Thread Starter
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Front coil spring bad?

I've read these forums up and down, but I haven't seen anyone talk about the springs going bad on a strut. Is that possible? I just installed kyb struts and have a loud, hard, and heavy clunk/ thud on the right front that shakes the entire car. It feels like something hitting an immovable object, like the strut compressing so much that it hits the bump stop. Could my spring be so bad that its doing that on small bumps? I've replace struts, strut mounts, endlinks, motor mounts and tires. I was thinking about doing the control arm next, but maybe its a bad spring, or bad strut from the factory. I'm gonna try and get my wife to pull in the driveway while i watch it tomorrow. Check out the video for the sound its making.

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post #2 of 9 (permalink) Old 01-05-2017, 11:16 AM Thread Starter
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I may have answered my own question. From reading at a Mazda 6 forum, the bump stops could be indeed touching. I could cut some of them off, but my problem is the springs and that would just be a bandaid. Maybe thousands of miles on a bad strut put too much work on that spring and it is too soft now. I think I will be ordering new springs. Now I wish I would have just bought the KYB quickstrut. I was avoiding that because i liked the ride height of my settled springs.
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post #3 of 9 (permalink) Old 01-05-2017, 01:03 PM
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I've never seen a spring sag enough to bottom out a strut. And no, a spring isn't going to go bad because the strut is bad. How much of a gap is there between the wheel and tire?
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post #4 of 9 (permalink) Old 01-06-2017, 12:15 PM Thread Starter
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like the tire and the fender? or how thick is the profile of my tire? I've ordered the springs. I plan to put some ticky tack on the bump stop tonight and see if it gets squished and I will know for sure.
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post #5 of 9 (permalink) Old 01-06-2017, 12:52 PM
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Tire and fender. Pinch weld to the ground would also be a good measurement to get.
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post #6 of 9 (permalink) Old 01-08-2017, 03:19 PM Thread Starter
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I put the ticky tack on the strut and it was flattened by the bump stop. So this confirms the spring being bad for me. It could also be the bump stops being the incorrect length i suppose but it is not happening on the drivers side no matter how hard i hit something. Springs are on the way. Will find out soon enough. Tire to fender is 3 inches. Center of wheel to fender is 15 1/2 inches.
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post #7 of 9 (permalink) Old 01-08-2017, 10:09 PM
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I'll measure mine when I get a chance but 3" sounds about what it should be. I will say that if the spring isn't broken then it isn't the issue. When you get it taken apart check the strut its more likely the cause.
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post #8 of 9 (permalink) Old 01-11-2017, 09:33 PM
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Just measured mine and its 2 1/4". Starting to sound more and more like you got a defective strut.
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post #9 of 9 (permalink) Old 01-11-2017, 10:07 PM Thread Starter
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Replaced the springs tonight and the thud is gone. They were just too soft with their age. It's a totally different ride now. I had forgotten how tight the steering could be.
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