Gavin1274

Thank you for your reply. Have you ever seen people use seafoam? After doing little research it seems effective and someone said they reached out to seafoam themselves and were told it dissolves the carbon so there is no chunks that would harm the turbo. Have you heard that?

Is there a good way to tell if this is the case? And what can I do to clean them ? Thank you

Would there be an engine code for that if it was the case?

it currently has 171k on it. I will be swapping the coil since it is still under warranty. Would a bad coil cause only the rough idle/misfire upon starting it? And it is only sometimes

Hello everyone, my wife’s car is a 2015 eco boost ford fusion SE. a few weeks ago on starting the car it will idle pretty rough for a few seconds then be totally normal and drives normal. Usually the rough idle is after we have been driving and car has sat for 10 minutes or so and go to start again. But sometimes on cold start too. A few months ago I replaced the spark plugs and ignition coil(only on cylinder 3) and it ran great, until these on start misfires started. Today the check engine light came on and I checked it at auto zone and it said misfire on cylinder 3. I took the hose that goes into the throttle body off and I did notice some oil in the hose and the hose had build up on the outside, but after looking it up it seems some people said that’s normal. Thank you all in advance.