because that's kind of a big engine
Check the motor mounts.
Engine miss or rough idle, or broken motor mount
Need more info. Does just the engine run rough or does the steering shake or does the whole vehicle shake betwen 50 and 55 mph?
The symptoms of a 4.3 liter V-6 engine timing chain problem is an engine that runs very rough. The engine will shake violently.
It sure can. In some cases your car will not run at all. Normally bad gas just means it is contaminated with moisture. A tiny amount of moisture and your engine will miss and run rough.
The Corolla could be shaking for many reasons. Start by checking the wheel bearings and brakes for wear. Then check the engine to see if it running rough, causing the shake.
If your car is shaking it could be poor suspension alignment can cause a car to shake and vibrate, and other possible causes are bent or worn suspension parts, old tires, bent wheels and bad brakes. If your car sounds especially rough at speed, the problem could lie with the car's spark plugs and wires. Spark plugs fire more frequently the faster you drive, and the engine will sound rough when they begin to fail.
Is the engine running?! If so, you've got a rough idle. Could be bad ignition timing, or the ignition (suppression) wires are worn out. Or perhaps you've got a vacuum leak. If the car really shakes when you rev the engine, you mighta busted an engine mount.
bad engine mounts
Miss or vacuum leak.
If there's a rough idle, that can be the cause. If whenever you give it some gas the engine looks like a bucking bronco trying to bust out of the chute, then you may have a broken engine mount. make sure you're engine mounts are tight that would cause a lot of vibration try that and see if that works
Most definitely. Any miss will cause the engine to shake. A vacuum leak will also cause this.