i want to renew my Green Card which expired in 2013, i have not travelled outside the country since, will it be a problem having it renewed?

If everything is regular, I do not see that you would have a problem renewing the green card even though it expired in 2013. The expiration of the green card does not mean that you are no longer a permanent resident. Due to the limitations of the Lawyers.com Forums, Alan Lee, Esq.'s (the "Firm") participation in responding to questions posted herein does not constitute legal advice, nor legal representation of the person or entity posting a question. No Attorney/Client relationship is or shall be construed to be created hereby. The information provided herein by the Firm is general, and requires that the poster obtain specific legal advice from an attorney. The poster shall not rely upon the information provided herein as legal advice nor as the basis for making any decisions of legal consequence.