I have a 2004 with the 2.7L engine. I replaced the map sensor about a year ago because it threw a code. I found oil in the sensor. The new one threw the same code about a week later and I took some paper rags and soaked up all the oil and put the sensor back on and the code cleared and it ran fine. I would like to find the source of the oil, because it is getting worse, I think. So basically the car hesitates around the shift points and makes driving it almost impossible as it wants to stall. How could oil be getting into the manifold?

 

Welcome to DF
Have you check the PCV valve and air filter. You maybe getting oil blow by in the manifold.

 

i have replaced my map sensor 2 times now there is oil in the sensor what can be causing this issue my truck has 186.000 miles in good shape it keep shifting up and down making it impossible to drive