The car turned off while I was driving and it didn't want to start again I call a mechanic and he diagnosed it for me he found the sensors I bought them but still there was no change I called another mechanic he diagnosed it he said it EGR valve and coil pack and I bought the new ones and still the car is doing the same thing the engine is shaking and the pipe at the back auxhust is making sound like "bba bba bba" like it cutting and when you start the car it start very well and when it finished reading it start shaking then it turn it self off I've tried everything please help me

Rough idle at idle, but fine when driving; acceleration feels sluggish; suction when removing the dipstick; slight fuel smell. My theory is either PCV, spark plugs, or coil packs. I've ordered an OBD scanner, but want an opinion.
There's also no check engine light yet

Vehicle will vibrate and rock back and fourth when in park or at stop light, it's especially bad when damp/wet conditions.
Ive replaced the starter I thought that was issue (it was corroded). Currently working on coil pack and spark plugs... could it have to do with anything else? Maybe fuel pump? I have one i have yet to get replaced. Thought it was battery had that replaced, checked the mount thats still good. But of a leak under the hood cant locate where coming from could do that have to do with it? Electrical??

The car turned off while I was driving and it didn't want to start again I call a mechanic and he diagnosed it for me he found the sensors I bought them but still there was no change I called another mechanic he diagnosed it he said it EGR valve and coil pack and I bought the new ones and still the car is doing the same thing the engine is shaking and the pipe at the back auxhust is making sound like "bba bba bba" like it cutting and when you start the car it start very well and when it finished reading it start shaking then it turn it self off I've tried everything please help me