I bought the 2014 Chevy Cruze used with about 62k miles on it in 2018. Now I have had some minor servicing done due to leaving it sitting for months while I went through basic training which was to be expected. Now at 74k miles my def pump went out. The repair and labor totaled over 1500 which I don’t know if I overpaid. I initially brought it in for the “poor exhaust fluid quality, speed will be limited to 65mph in 100mi”. Also not even a full week later on my way into base my check engine light turns back on. Help please