Keep pushing links to your website, autoblogs notoriously need a good amount of backlinks since there's so much content being pushed out on your website.
The goal should be to backlink MORE than just the homepage of your website, remember the more links you build to internal pages the more areas that the Google bot will crawl and index. Be sure that you link posts, category pages, tag pages, etc.
What you are currently experiencing is nothing more than the Google dance.