Hey, I know it's been a while but I'm hoping you guys are still part of Mazda247.
Background: I have a 2007 Mazda cx7 that I purchased in 2009 with ~13,000 miles on it. It's been a great car and now has roughly 77,000 miles. The only minor issue is that every now and then it sputters between gears. Recently, that problem has become more frequent. Since I have had the car, I have twice taken it to Mazda for this issue to be researched and both times told that there were no issues.
I dropped it off this morning for an oil change at the local dealership and told them about the sputtering (first time with them, I usually go with Firestone) and 7 hours later they call to tell me it took them all day to change my oil and they need to keep it over night because it is smoking. To be fair, I let it go 7,000 miles since the last oil change. Would this cause the oil filter to jam and them to have to cut the oil filter off? Would it cause it to smoke afterwards? I know the sputtering, which did come with some black smoke, only happened at most 3 times a week, and the guy is making it seem like it's constant now.
The more I think about it, the more I am sure that this guy is trying to screw me over. I think I know enough to know that the only reason a oil filter would stick is because the o-ring was not greased before it was put on, right? Also, knowing that the sputtering happens between gears does not lead me to believe it has anything to do with the motor. Is that also right? I also can't imagine that a corporate dealership would spend 7 hours attempting to change the oil on one car. That does not make business sense to me.
Either way, I called them tonight and left a voicemail telling them not to touch it. I plan to pick it up in the morning. I'm just looking for validation or for someone to tell me that I'm wrong and their right. Hope you're still out there. This was the closest thread I could find to my issue.
