I searched and most results I found deal with smoke on acceleration, but what I have is smoke at idle after warmup. I first noticed it about a week ago and thought the rings were gone it was so bad. I checked the oil and it was a little low, but not enough to cause any issues. When I got it home I pulled the plugs and found alot of carbon buildup, so I changed the plugs and ran a couple cans of seafoam through the intake. I thought this had cleared up the problem, but it is still smoking.
It only happens after prolonged driving and then a period at idle. I believe it is runnning rich, but I'm not sure why. It has been running a little cooler than normal since the weather has been colder. I am going to check the thermostat and make sure it is not stuck open and replace it (195*).
This does not appear to be a head gasket leak because I am not losing any coolant. I thought it might be valve stem seals, but that should not smoke after prolonged driving. I've heard the MAP sensor causing smoking and a rough idle, but my idle is smooth. The o2 sensor is about 1.5 years old and I haven't noticed any huge mpg drops (it usually only gets about 13.5 city).
Anybody have any ideas?
Thanks
It only happens after prolonged driving and then a period at idle. I believe it is runnning rich, but I'm not sure why. It has been running a little cooler than normal since the weather has been colder. I am going to check the thermostat and make sure it is not stuck open and replace it (195*).
This does not appear to be a head gasket leak because I am not losing any coolant. I thought it might be valve stem seals, but that should not smoke after prolonged driving. I've heard the MAP sensor causing smoking and a rough idle, but my idle is smooth. The o2 sensor is about 1.5 years old and I haven't noticed any huge mpg drops (it usually only gets about 13.5 city).
Anybody have any ideas?
Thanks