2011 Genesis 4.6 smoke

[mpena93]

I have a 2011 Genesis 4.6 with 140k miles. I have owned it for over 6 years without a problem. Recently it started sputtering and the check engine light comes on. It is undriveable and the miles to empty went form 95 to 7 in a couple of blocks driving and white gray smoke coming out of muffler. . I had to park it and leave it overnight. The next morning I found a huge gap in the throttle body seal where the air intake tube attaches, I resetted it and replaced the clamp. It drove great after that for a couple of weeks but it started doing it again, but not so bad. Stop and turned it off and started it back up and drove ok, but now i am concern and not comfortable driving it on the freeway. Any help of what it could be would be appreciated it. I suspect possibly the mass air sensor. Thanks

 

[Charlie1982]

Is the check engine light still on? Did you have anyone check for codes?

 

[mpena93]

The check engine light is on, code reader detected multiple cylinders misfiring. It starts ok but after a few minutes it starts to smoke white and engine runs rougher till it dies.

 

[jep604]

The check engine light is on, code reader detected multiple cylinders misfiring. It starts ok but after a few minutes it starts to smoke white and engine runs rougher till it dies.

Check your oil for coolant.

 

[Charlie1982]

When you start the car, does the amount of exhaust flow volume coming out of the tailpipe look normal? Or does it look like it could be restricted? If it looks restricted, or “choked off”, have someone see if your catalytic converter(s) is/are plugged up.

 

[mpena93]

I was told it needed a new ECM. I did not believe that, so I started checking it my self. The gap in the air intake at the throttle body must have let in dirt into the engine, I found PCV valve stuck. I removed it and had no rattle in it. Cleaned with carb cleaner and bunch of dirt came out and it rattle nicely with a metal sound. I changed the tank purge solenoid since in was clicking rather loudly and when the ticking would start, the exchaust fume would increase dramatically. It would do it after running a few minutes, now with these changes the engine starts great, no rattle or noices and runs smoothly., no smoke. Could this be all that was wrong with it. ? Engine oil is clean and coolant level is normal.

 

[jep604]

I was told it needed a new ECM. I did not believe that, so I started checking it my self. The gap in the air intake at the throttle body must have let in dirt into the engine, I found PCV valve stuck. I removed it and had no rattle in it. Cleaned with carb cleaner and bunch of dirt came out and it rattle nicely with a metal sound. I changed the tank purge solenoid since in was clicking rather loudly and when the ticking would start, the exchaust fume would increase dramatically. It would do it after running a few minutes, now with these changes the engine starts great, no rattle or noices and runs smoothly., no smoke. Could this be all that was wrong with it. ? Engine oil is clean and coolant level is normal.

Glad you got it worked out.