Hi all,

I have 91 accord SE, problem is engine vibrating due to the drop from the jacks. the whole front dropped to the driveway, and afer that it caused vibration. I changed new suspensions, rotors, brakes, front engine mount
and it is still vibrating.

the car is vibrating when it is in P gear and it's vibrating alot when i shift to R gear.

Can someone help me solve the problem?

 

The rear trans/engine mount has failed.
When it goes south, the engine grounds against the body frame and all manner of vibrations break out.

 

what's about when it's just in P gear? it is vibrating little but not bad as when shift to R

 

i am thinking of TRANNY MOUNT, but not sure

 

It gets worst as the engine shifts it's orientation (tilts)
Inspect the rear mount. You'll see what I'm talking about.
In "Park" it's at rest and assumes a more upright position. When you put it in gear, it tilts

P

 

It's called by either name.
You'll find it in the Honda Parts catalog under engine mounts. (sorry) force of habit

 

Hi P Adams
i just read this from other site, he said there is a electronic control located in rear mount
is that one of the problem?

 

Actually the rear mount utilizes vacume to assist supporting the engine/trans assembly. It is controlled by a switching solenoid. In most cases, the activation system is pretty much bullet proof; but you mantioned this occured after the car dropped off some jack stands correct?
If you have a vacuum pump (with a gauge) you can determine if the mount still holds vacuum.
This failure is not uncommon on Honda's.

P

 

yea, after it felt off from the jacks, the whole front slammed on the driveway floor.

One thing i didn't mention was the oil pan got dented, i don't know if that caused the engine shakes (vibration) (not sure)

but I will change all the mounts to see how it is, that is the only way.

 

oh one morething, when i put to D gear, then the car is normal. drives smooth.

but when i start hit the brake to stop at red light, it starts vibrating and shakes a little

 

the motor is vibrating.. because its running

there ya go.

all solved

 

P Adams is on the money.
Rear Tranny/Engine mount and your all good

 

Hey since we are talking about rear mounts, I was inspecting mine today and notices some fluid (brake?)around the base and on the mount...time to replace? I do have some, not bad, shaking in reverse.