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S Chassis Technical discussion related to the S Chassis such as the S12, S13, S14, and S15. |
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11-17-2014, 04:01 PM | #1 |
Leaky Injector
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Really Loud Banging Noise Coming from Rear of my S14
Alright whats up guys, I recently bought an S14 and got a new clutch installed and finally got to drive the car. None the less as soon as I drove it I have a banging noise when I put the clutch in, let off gas and to me it sounds like its coming from the passenger side of the rear. Its not a clunk it sounds like someone knocking on your car but about 5x louder (kinda hard to relate it with something). Well before anyone says did you use the search bar, I have. Ive came up with diff bushings, driveshaft joint, control arms, axels etc. I took the car today to my mechanic and he said I need to replace my front mounts for the rear (i dont know what he meant by that but didnt sound to well) and I also felt the car vibrating from the rear (from my perspective) the bang is annoying and I want to get it fixed before any more problems occur then what I have besides this one and some other ones which are easy to fix. If anyone can help me or if you have the same problem and managed to fix it and mind telling me that would be great!! Ive jacked the car up yesterday with my dad to see if we can find anything wrong and had no luck! Thank you for those who can help - Matt
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11-17-2014, 04:17 PM | #2 |
Zilvia Addict
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What Id try is raising the rear up,put some jack stands for safety and have someone looking at it below the car while you start it and try getting it to make the sound again.and pinpoint it then.i had that issue before and it was my ebrake cables hitting the driveshaft after I did my z32 brakes.the only downside to that is the suspension not being under a load and maybe that's when it will do what it's doin.
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11-17-2014, 04:22 PM | #3 | |
Leaky Injector
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11-17-2014, 06:53 PM | #7 | |
Zilvia Addict
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Forward bushings for the rear=
your diff bushings are shot. they will make a clunk/vibration under accel/decel
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11-17-2014, 07:41 PM | #8 |
Post Whore!
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I have a feeling it's a combination of multiple things. Subframe bushings are shot for sure.
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11-18-2014, 06:44 AM | #9 | |
Leaky Injector
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12-01-2014, 09:34 PM | #10 | |
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12-02-2014, 02:04 AM | #11 | |
Leaky Injector
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12-02-2014, 04:18 AM | #12 |
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Fenders were rolled previous to buying the car. But, it shouldn't be an issue, unless you're really low and depending if your wheels are flush or are poking out past the fender already. Pics of how much clearance you have will help me understand your setup better.
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12-02-2014, 02:30 PM | #14 |
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the rear subframe bushings of every 240sx are always shot. Its just a given. Just like TC-rod bushings are always shot. And door panels are always wrecked. And the power steering leaks.
@#()*@(#* I love 240s because thats all we have to deal with, door panels and a few easy to deal with bushings. I still remember burning the skin off the back of my hands just trying to change the spark plugs on my old V8s. No thanks! |
12-03-2014, 09:56 PM | #15 |
Zilvia Junkie
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The problem is the two metal weights bolted to the front of the rear subframe. The rubber tears and the metal weight bangs against the body of the car. Only original 5 spd s14 have this problem.
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12-05-2014, 06:42 AM | #16 |
Leaky Injector
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Yeah mines an original 5 speed. I solved my problem and it was definitly my bushings from the front part on the rear subframe. I replaced them with Energy Poly Bushings. Just waiting for my calipers to come to my house for the rear brakes and then I can test to see if it went away.
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12-05-2014, 10:51 AM | #17 |
Post Whore!
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The energy suspension inserts are only a bandaid for your problem. The center sleeve generally tears away from the rubber webs, which still allows quite a bit of movement in the rear subframe. The only way to rectify the problem is to drop the subframe, remove the old, worn out pieces and install new ones.
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12-06-2014, 08:46 PM | #18 | |
Leaky Injector
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