631 Auto Service is a highly recommended auto repair shop located in Lindenhurst, NY. Customers praise the honesty, professionalism, and excellent customer service provided by the team, particularly Eddie and Karen. The shop has earned a reputation for being trustworthy and fair. Customers have had positive experiences, such as having their vehicles diagnosed accurately and repairs completed in a timely manner. One customer was impressed when the mechanic informed them about a federal warranty that covered the needed catalytic converter replacement, saving them a significant amount of money. The shop has also demonstrated its ability to handle complex issues, such as a stolen catalytic converter. In that case, the staff went above and beyond to coordinate the towing, insurance, and rental car arrangements, ensuring the customer's car was repaired and returned before the holidays. Overall, 631 Auto Service is praised for its skilled mechanics, honest and transparent approach, and exceptional customer service. Customers feel they can trust the team with their vehicle needs and highly recommend the shop to others in the Lindenhurst and surrounding areas.