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While it is possible for an engine to fall out if the motor mounts are bad, it is very unlikely. However, a broken mount will likely destroy the engine if it is not replaced.
Engine, not motor. There is a possibility for it to, if the impact is sufficient enough to shear the engine mounts.
A loose engine mount would not normally cause the engine to fall out because each car has several motor mounts. A loose mount could cause the motor to be off of balance.
Raise the car on ramps or jackstands. Drop the crossmember between the two front A-arm mounts. It has four large bolts. put a jack under the engine cradle member that attaches to the mounts and the subframe. Unbolt both mounts from the engine and put a jackstand under the oil pan or the transmission. Make sure it's tight and not allowing the engine to move but there is a 3rd engine mount on the passenger side top of the engine that will not allow it to fall but you want to keep everything aligned for ease of service.. Then unbolt the engine cradle and lower the cradle with the mounts still attached. Change the mounts and do everything in reverse. Use plenty of PB blaster for an easy job! -JLove
You will have to remove the long bolts that go through the motor mounts and raise the engine up and support it / brace it so it don't fall and tear a hand off. Then you will have to remove the 3 bolts that hold the mount to the engine block. Now replace the freeze plug.
You will first need to take the bolts out of the fan shroud. And leave it set there. Then raise truck and put it on jack stands. MAKE SURE ITS SAFE. Now remove the 2 long bolts that holds mount to frame,1 on each side. Then raise engine up above the frame mounts, Block engine up so it don't fall on your arms are crush hands. Now remove the 3 bolts that hold the mounts to the engine block. Replace the mounts. then put back together. THERE YOU ARE.
When changing motor mounts, the engine will are to be supported while the mount is removed. Using a jack with a board across the top to distribute the weight, raise the board against the oil pan. Unbolt one motor mount. Gently raise the engine till the motor mount can be removed. Repeat for the other side. Take caution on to raise the engine high enough to damage any hoses and wires, and be careful that the board does not slid causing the engine to fall.
i read it in the haynes manual. you gotta undo the engine mounts, lift the engine like 4 inches or so, put blocks of wood in between the engine mounts and the engine so it doesnt fall and then the pan will clear the crossmember. dont forget to remove the oil pickup bolts.
Check your engine mounts..1 of them could be bad or on it's way out.
I did the hard way and reached back there and did it myself but it took a couple hours and a lot of work to get to them. I've been told to undo the front motor mounts and with a hydraulic jack, jack the front of the engine down far enough to see the back 3 plugs, but I didn't try that. A lot of the Gran Prix V-6 (beginning with 3.1 litre v-6 transaxles)models have "dog bone" motor mounts on the front side of the engine. Disconnect these (don't worry the engine is sitting on the transaxle, and it won't fall.) Once the mounts are disconnected you can insert a length of 2x4 between the engine and firewall and rotate the engine forward by using leverage. It will turn with the front drive axle. Just prop the 2x4 in the position you want to hold the engine. Sometimes, depending on your options you may have to disconnect the radiator hoses, but not always. You can usually tell just by looking. Once you have changed the plugs, release the 2x4 and the engine will rotate back to the original position. Reconnect the motor mounts (and radiator hoses if required)and, VOILA! You're done. I've done this several times and it sure beats the labor charge the shop wants to reach those plugs. Got this tip from a Pontiac mechanic.
If you fall on a broken hand most of the time nothin.
Yes I not only have an idea, I have two ideas. The shaking is probably caused by a broken motor mount. If you do not get it replaced, the shaking will make the other mounts break. Then some day your engine will fall out of your car as you are riding along. Second: When the car sounds like it is going to start but does not, it has a low battery. That is a sign the battery is wearing out. The battery needs replacing. I suspect your car has other problems as well.