my daughter's looking into re-financing her car. her score's a little over 700, but she only makes about 700 a month. i helped co-sign her on her current loan which started in march, and received an interest of 15%. im afraid she won't get approved for a refinance on her own with credit union because of her low income and was wondering how much that will hurt her credit. i've been recently informed that with my score of 590, serving as a co-signer would not help the situation.