Did my own trouble shooting and took my 2016 GMC Sierra Denali 1500 to a couple different mechanics to find out the cause of the check engine light. John’s did a comprehensive evaluation to include recommendations and critical work, along with photos. Bummer was having to spend $4,400, but it was a fair price for the work that needed to be done. Their comprehensive report will allow me to take a stab and learning some new things by doing it myself, but anything that I can’t figure out, going back to John’s, no question about it.
Thank you so much for taking the time to share your positive experience at John's Automotive Care, Frederick! We are thrilled to hear that our team was able to provide a comprehensive evaluation and critical work to address the check engine light issue on your 2016 GMC Sierra Denali 1500. We understand that the cost may have been unexpected, but we are glad you found it to be fair for the quality of work provided. We were happy to assist you and our comprehensive report is always available for reference in the future. We look forward to helping you with any future car troubles. Thank you again for your review and support. We appreciate it!
- John's Automotive Care