Well this is the third time the car has gone into the shop. First time they said they couldn't figure it out. Second time they replaced a HVAC sensor. I also complained of a slight ticking in the morning for about 30 sec until the car heats up. They told me its an exhaust leak and I don't doubt them...they just don't know where it is coming from.
A little background on this third trip and I am not sure if it has anything to do with what is going on or not. Last sunday the wife and I worked on giving the car a good wash. I decided to use an engine cleaner to clean the engine bay even though it really isn't all that bad. The next day, the wife did some running and drove to work. On the way there, the car started hesitating, idling rough, and even kind of backfiring. I ran out to her work to check it and wondering if somehow water got into the gas, I put in some heet and filled up the gas tank. On the way home she said it was the same and it finally threw a code. It did get a little better when I took it out the next day but it was still hesitant at low rpm. I took it over to my father in law who owns a auto shop and he ran the code...#6 misfire. Seeing as it is still under warranty, I took it back to the dealer. Now it has been there all day friday, the weekend and when I called this afternoon they said they were waiting from a call back from Nissan tech service (the same thing they told me Friday) WTH are they thinking could be wrong? My guess is bad spark plug or coil.
