I had to remove the front tensioner when I first got the car with the factory belts on it. After a month I got he Kfactory ones and now I have no problems with them, even though I run the front tensioner as high as I can. Good luck I hope you find something to work. I am still getting used to this car right now and trying to learn to adjust it myself, just not getting the results I would like, but I will keep trying.