You said you didn't start having these problems for several months after owning the car. You've owned the car going on 19 months now. So I don't believe those problems were there prior. However, the issues that you have mentioned has been discussed many times along with an easy fix on this forum. As you have been a member since August 2013 and this is your first post, you might want to research those issues. This may help:
https://www.crossfireforum.org/forum...tml#post585345. You can also use the Google Custom Search function at the top of the Forum, something I used often.