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SN95 Cobras
Did I get a bad example????
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<blockquote data-quote="cobralvr01" data-source="post: 15033925" data-attributes="member: 164560"><p>So I purchased a 1997 Cobra back in January. It had several problems but I figured that these issues would be resolved with the parts I planned on replacing.</p><p>Problems it had:</p><ul> <li data-xf-list-type="ul">Vibration and humming in the rear end - The vibration happened when decelerating from 40+ and became more pronounced with the AC on or if decelerating in nuetral.</li> <li data-xf-list-type="ul">Drive train noise - It had a lot of excessive drivetrain noise when driving around at low speeds (below 30mph).</li> <li data-xf-list-type="ul">Suspension felt like crap - the suspension make excessive noise when going over bumps and rode like I was on marshmallows.</li> <li data-xf-list-type="ul">Brakes "chattered" when rolling over small bumps - This was extremely noticeable on road that had a lot of very small bumps in the road.</li> <li data-xf-list-type="ul">A whining noise when the AC was on and the clutch would be engaged.</li> <li data-xf-list-type="ul">I could hear what sound like bad bearing (no chattering) in the transmission. I figured this was because of an unbalanced flywheel from the previous owner.</li> </ul><p>[*]Clunking when changing gears - There was a noticeable clunking noise when changing gears. Especially when at a stop.</p><p>Here's the things I have replaced on the Cobra since purchasing:</p><ul> <li data-xf-list-type="ul">New suspension bushings all around. Car feels very tight but seems to be too responsive and somewhat unsafe. When I turn it barely needs any movement from the steering wheel and it will jump over to the next lane.</li> <li data-xf-list-type="ul">New transmission fluid - this made the sound in my transmission even louder somehow. I used Ford Mercon 5 as indicated.</li> <li data-xf-list-type="ul">Replaced all shocks with Koni Yellow Adjustables - this seemed to produce more interior vibration noises and it's driving me insane.</li> <li data-xf-list-type="ul">Rebuilt rear end - there's a bad vibration at high speeds when I have the gas just on the line where there will be load on the drivetrain.</li> <li data-xf-list-type="ul">Replaced the UCA & LCA's with SVE CA's. Now, when I turn into my neighborhood that has an incline, my rear end make a loud pop sound. Almost as if everything is bound up in the rear end.</li> <li data-xf-list-type="ul">Replaced DS with a Ford Racing Aluminum Driveshaft. I thought this would relieve alot of the drivetrain noises due to bad u-joints but it has actually made them worse. When driving around I feel like I have excessive backlash in the entire drivetrain. I have already reopened the rear and reset the backlash. The clunking when changing gears is still present.</li> </ul><p>So after all of this, the car still sounds like either the supsension or the drivetrain is just going to fall out. Did I get a bad example of an sn95 cobra or is excessive interior and drivetrain noises to be expected? I ask because I had a '98 cobra with about 32k miles and I don't remember it having anywhere near as much creaking, popping, and rattling.</p></blockquote><p></p>
[QUOTE="cobralvr01, post: 15033925, member: 164560"] So I purchased a 1997 Cobra back in January. It had several problems but I figured that these issues would be resolved with the parts I planned on replacing. Problems it had: [LIST] [*]Vibration and humming in the rear end - The vibration happened when decelerating from 40+ and became more pronounced with the AC on or if decelerating in nuetral. [*]Drive train noise - It had a lot of excessive drivetrain noise when driving around at low speeds (below 30mph). [*]Suspension felt like crap - the suspension make excessive noise when going over bumps and rode like I was on marshmallows. [*]Brakes "chattered" when rolling over small bumps - This was extremely noticeable on road that had a lot of very small bumps in the road. [*]A whining noise when the AC was on and the clutch would be engaged. [*]I could hear what sound like bad bearing (no chattering) in the transmission. I figured this was because of an unbalanced flywheel from the previous owner. [/LIST] [*]Clunking when changing gears - There was a noticeable clunking noise when changing gears. Especially when at a stop. Here's the things I have replaced on the Cobra since purchasing: [LIST] [*]New suspension bushings all around. Car feels very tight but seems to be too responsive and somewhat unsafe. When I turn it barely needs any movement from the steering wheel and it will jump over to the next lane. [*]New transmission fluid - this made the sound in my transmission even louder somehow. I used Ford Mercon 5 as indicated. [*]Replaced all shocks with Koni Yellow Adjustables - this seemed to produce more interior vibration noises and it's driving me insane. [*]Rebuilt rear end - there's a bad vibration at high speeds when I have the gas just on the line where there will be load on the drivetrain. [*]Replaced the UCA & LCA's with SVE CA's. Now, when I turn into my neighborhood that has an incline, my rear end make a loud pop sound. Almost as if everything is bound up in the rear end. [*]Replaced DS with a Ford Racing Aluminum Driveshaft. I thought this would relieve alot of the drivetrain noises due to bad u-joints but it has actually made them worse. When driving around I feel like I have excessive backlash in the entire drivetrain. I have already reopened the rear and reset the backlash. The clunking when changing gears is still present. [/LIST] So after all of this, the car still sounds like either the supsension or the drivetrain is just going to fall out. Did I get a bad example of an sn95 cobra or is excessive interior and drivetrain noises to be expected? I ask because I had a '98 cobra with about 32k miles and I don't remember it having anywhere near as much creaking, popping, and rattling. [/QUOTE]
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