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Question with 92 SC400. opinions?

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Old Mar 29, 2008 | 01:09 AM
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Question Question with 92 SC400. opinions?

Hi all,

2 daysago i bought a 92 sc400. the engine is good even with 140k it, however, i just discovered a issue that has been bothering me. when i shift into reverse and go back very slowley and hit the break slowely, it feels like there is a bit of a knock, kinda like the engine or tranny mount is lose or something. when i go slow forward and break it dosnt do that and stops fine. anyone have any possible answers for it?
Thanks all,
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Old Mar 29, 2008 | 01:27 AM
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i have the exact same problem, but still have not gotten it diagnose yet because i keep forgetting about it. does the sound/thud occur everytime you reverse? for me it's only during cold starts
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Old Mar 29, 2008 | 05:00 AM
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Old Mar 29, 2008 | 09:14 AM
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so far its happened everytime i go into reverse and hit the brakes. im just hoping its not the tranny thats bad. im gonna have it alligned today, im gonna ask them to look at the mounts and stuff while its up on the lift.
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Old Mar 29, 2008 | 10:05 AM
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It could be the brake calipers, if I remember correctly the pads shift when going forward and then backward. I used to have a little clunk before I upgraded.

But at the same time if you haven't replaced the engine/transmission mounts it makes a world of a difference to do those.
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Old Mar 29, 2008 | 04:46 PM
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Got a break inspection done today and they said they looked great.
heres something new i realied tho, i told my wife to drive back a forth a bit and realized that when she did drive in reverse and Hit the breaks the front wheels kinda jerked. Now im thinking it could be the Control arms maybe?!
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