Broken Engine Mount

[DigitalBee]

Yesterday on the way home with my cousin in the car, I stopped at a red light, held down the brake and floored the accelator, just as the light turned green, I launched off the line, when I did so, I heard a loud pop and something hit under the floor of the car very hard. Now, when I take off (like a civilized human being) something hits under the floor of the car, I believe it is the tranny moving from the torgue, so I jacked up the car, to check the tranny mount and crossmember, both seem to be solid with no visible damage anywhere under the car.

Also, there is no visible proof that the motor mounts are damaged any way. I lifted the hood, with the car running and manually pulled the accelerator, the engine did not pull up off the chassis at all.

I noticed that the car has to be in movement in order for this to happen, If I rev up the motor or if I do a brake stand, nothing unusual will happen. Its only when I take off.

Any ideas? :: Cry ::

[Ramair90]

hey DB where in the floor is the sound coming from...driver side...passenger side?... if its the passenger it could be your exhaust or you might have a broken shock in the rear if the clunking is coming behind you. try to give as much detail as you can bud.

-Adam

[Jerriko]

I had this problem a couple months ago. What was doing it was the tranny mount. If you jack up the car and visually look at it, it is very hard to notice a tear in the rubber section of the mount. Try pushing upward on the rear of the tranny with all of your might. You have to remember that besides the weight of the engine and tranny pushing down on the mount there is the brace that connects to the axle housing.
Hope this helps,
Jim

[DigitalBee]

Could this broken engine/tranny mount cause a loss of power? It seems that I have lost alot of HP/Torque from this. Maybe its in my head.. who knows.

[3.4 slow to go]

yeah, it can fu.., sscrew w/driveline geometry , maybe cause some binding .

[DigitalBee]

Turns out it was my tranny mount. It tore the rubber right in half. Im wondering if my motor mounts arnt bad too..

I paid $15 more for the poly mount, much stronger.