1992 Honda Prelude Vibration in Gear

HONDA PRELUDE
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THECANYON2K4
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I own a 1992 honda prelude, with an automatic transmission and 181XXX miles on it. When i put the car into any of the gears, the car jerks (hard) and there is a bad vibration going through the whole car when the car is idle, however when driving, there is little to no vibration. I got my friend to hold the brake and put the car in drive only to go outside to see my exhaust is vibrating really badly. I got the car fully tuned up and I'm waiting for honda to get a replacement engine mount for me for one of my broken mounts. Any help would be greatly appreciated.
Mar 7, 2007 at 4:23 AM
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FISHERMAN
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Motor and transmission mounts...
replace the one you are waiting for and check the rest of them..
Mar 7, 2007 at 7:33 AM
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BRUCE HUNT
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Get the mount repaired and then you should notice less vibration and the jerk should be lessened when the vehicle is engaged in to gear.
Mar 7, 2007 at 12:23 PM
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THECANYON2K4
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Also, sometimes when i hit the gas, the car doesnt go right away...it kinda feels like the tranny is slipping, but i dont know...its very feint and not very noticable..usually it happens when going from a completete stop, or when i let off the gas, then hit it again.
Mar 7, 2007 at 1:18 PM
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BRUCE HUNT
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Is it the engine that is hesitating or the transmission?
Mar 8, 2007 at 2:10 AM
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THECANYON2K4
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i think its the tranny...
Mar 8, 2007 at 3:19 AM
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BRUCE HUNT
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Have you had the mount replaced yet?

Is the tranny fluid full and is the fluid clean in appearance?
Mar 8, 2007 at 7:58 AM
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THECANYON2K4
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stil waiting for honda to ship it in...
Mar 8, 2007 at 11:16 AM
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THECANYON2K4
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changed the mount (it was COMPLETELY broken), however the car still vibrates (seems a bit rougher than before) when i hold the brake down, and shifts a *little* bit better than before, and is a bit less jerkey...any other suggestions?

"Lately my idle has been jumping up and down whenever i let go off gas to slow down. When the idle goes down I can feel the car trying to slow down, but as soon as it does or a step on the brake the idle jumps up and car is trying to speed up. Also, when i press on the brakes and car is almost at full stop, idle jerks a little, goes down to 1000 rpms, and then after couple seconds down to like 750-800. When at a full stop, I let off the brake on a hill, it speeds up and changes gears, but only goes in first."

^ this person has the exact same problem as me, and wrote it out much better than i could have.
Mar 15, 2007 at 2:54 PM
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THECANYON2K4
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anyone???? really need some help here...
Mar 20, 2007 at 6:39 AM

Suggested Repair

Replace the broken engine mount and inspect the remaining engine and transmission mounts. Confirm the transmission fluid is full and clean before treating the faint delay as a transmission slip.

Conversation Summary

The owner of a 1992 Honda Prelude automatic reported hard jerks when selecting a gear and strong vibration at idle, including visible exhaust movement while holding the brake in Drive. Vibration was minimal while driving. Experts advised replacing the broken engine mount, checking the other motor and transmission mounts, and verifying whether the hesitation came from the engine or transmission and whether the fluid was full and clean. After the broken mount was replaced, shifting improved slightly, but idle vibration remained and the owner still suspected faint transmission slip from a stop.

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