Hello Im sharing great content on Facebook. and i have have tons of Facebook likes who share and comment on everything i post, but i dont have any sales
Create one landing page with some great offers and collect email list and then bombard email subscriber with your offers.. Try to engage with the user are looking for your service.
You need to target your customers. Having 500 targeted fans is better than having 5000 non-targeted fans
If they're as engaging as you say maybe you're not offering them what they want, try switching to something else.
Try to figure out the disconnect between your Likes and lack of conversion. It could be your price point, sales pitch, or any number of things.
If you used one of them "100k fans for $0.99" services, no surprise your fans don't buy your stuff. Better targeting through fb ads might help with sales.