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Shaking and vibrations

Tiny
THECANYON2K4
  • MEMBER
  • HONDA PRELUDE
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.
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Wednesday, March 7th, 2007 AT 12:23 PM

9 Replies

Tiny
FISHERMAN
  • MECHANIC
  • 937 POSTS
Motor and transmission mounts.
Replace the one you are waiting for and check the rest of them.
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Wednesday, March 7th, 2007 AT 3:33 PM
Tiny
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.
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Wednesday, March 7th, 2007 AT 8:23 PM
Tiny
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.
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Wednesday, March 7th, 2007 AT 9:18 PM
Tiny
BRUCE HUNT
  • MECHANIC
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Is it the engine that is hesitating or the transmission?
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Thursday, March 8th, 2007 AT 10:10 AM
Tiny
THECANYON2K4
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  • 6 POSTS
I think its the tranny.
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Thursday, March 8th, 2007 AT 11:19 AM
Tiny
BRUCE HUNT
  • MECHANIC
  • 3,754 POSTS
Have you had the mount replaced yet?

Is the tranny fluid full and is the fluid clean in appearance?
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Thursday, March 8th, 2007 AT 3:58 PM
Tiny
THECANYON2K4
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  • 6 POSTS
Stil waiting for honda to ship it in.
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Thursday, March 8th, 2007 AT 7:16 PM
Tiny
THECANYON2K4
  • MEMBER
  • 6 POSTS
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.
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Thursday, March 15th, 2007 AT 9:54 PM
Tiny
THECANYON2K4
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Anyone? Really need some help here.
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Tuesday, March 20th, 2007 AT 1:39 PM

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