my motor is 2.6L, and it does shaking right after warm up. i might need to change my 02 sensor, i did not think about that. also other thing when my egr valve start suck in that is when it start shaking and when i take egr valve hose to vaccums off it will run smooth. i install new egr valve and still does the same thing. so any idea what the problem??? also i forgot to mention one more thing as when the black smoke come out of muffler, the black smoke does come out of spark plug too?!?!? i had no idea what wrong! any help will be gratefully.
-randall