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Old Jan 14, 2018 | 06:48 PM
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Default Three questions

Hey guys havent posted in a while but have a couple questions about some things with my 1995 SC400.

First off when A/C is on it whines like a mo fo but is quiet when I turn the A/C off. I suspect the clutch is bad but can not find any parts or any clutch rebuild kits only the whole compressor. Is it even possible to change the clutch or do I have to change the whole $400 compressor? Also is it common for the internals of the compressor to go bad would suck to change the clutch and still have a whining issue.

Second is I have two amps in the trunk running a lot of wattage and I've got alternator whine all the time (power steering is full and new pump), would a capacitor eliminate this issue or do i need to run a higher output alternator?

Lastely my driver front coilover decided to "blow" overnight and clunks and clicks when i go over bumps or push the car down (can put my hand on the top of the coil and feel it popping) its a megan ez series that i got like 7 years ago, how hard is it to rebuild these or is it better to just buy a new coil.

Some pics and me and my dads because why not (if bitcoin goes up maybe i can get some rims again )
Attached Thumbnails Three questions-sc300-and-400.jpg   Three questions-img_2882-1-.jpg   Three questions-312735_450142235044935_140943150_n.jpg   Three questions-557878_555020604557097_554116934_n.jpg   Three questions-sc300-motor.png  


Last edited by BradHoff; Jan 14, 2018 at 07:12 PM.
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Old Jan 14, 2018 | 11:04 PM
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1. Check the pulley on the a/c compressor for wear on the bearing.

2. Check all the grounds and wiring for electrical interference.

3. Take the coil out and make sure everything is still tight and in tact. The bushings could be worn and causing that sound. If you want to keep the coils, then call megan and ask if they sell the shock inserts. A new insert might be cheaper than paying for a rebuild service. Or the easiest route is to get new coils. 7 years is a good life for any shock.
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Old Jan 15, 2018 | 08:47 PM
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Originally Posted by BradHoff
Hey guys havent posted in a while but have a couple questions about some things with my 1995 SC400.

First off when A/C is on it whines like a mo fo but is quiet when I turn the A/C off. I suspect the clutch is bad but can not find any parts or any clutch rebuild kits only the whole compressor. Is it even possible to change the clutch or do I have to change the whole $400 compressor? Also is it common for the internals of the compressor to go bad would suck to change the clutch and still have a whining issue.

Second is I have two amps in the trunk running a lot of wattage and I've got alternator whine all the time (power steering is full and new pump), would a capacitor eliminate this issue or do i need to run a higher output alternator?

Lastely my driver front coilover decided to "blow" overnight and clunks and clicks when i go over bumps or push the car down (can put my hand on the top of the coil and feel it popping) its a megan ez series that i got like 7 years ago, how hard is it to rebuild these or is it better to just buy a new coil.

Some pics and me and my dads because why not (if bitcoin goes up maybe i can get some rims again )
Yes you can change the clutch without changing the compressor. But finding the parts will be your problem. The compressor is less than $200 on rockauto but involves draining the system and recharging. No idea on the other 2 questions.
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Old Jan 16, 2018 | 07:42 AM
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When it comes to the alternator whine, I would just add another ground to your head unit. Capacitor will not change the whine sound or help with sound quality.
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Old Jan 18, 2018 | 06:02 PM
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Originally Posted by mrmj2u
When it comes to the alternator whine, I would just add another ground to your head unit. Capacitor will not change the whine sound or help with sound quality.
Did a "better" ground when i first installed the headunit compared to the factory ground but will try and run another ground when im back there again
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Old Jan 18, 2018 | 06:10 PM
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Originally Posted by BradHoff
Did a "better" ground when i first installed the headunit compared to the factory ground but will try and run another ground when im back there again
If that doesn’t work, a last resort would be a line out converter.
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