Vehicle had a slight miss when 1st started. Then all was well. However, we took a trip to houston tx and the cruise control failed. Took the car to knapp chevrolet for repairs. Paid $1, 069.05 and assumed the car was fixed. About 10 minutes on the road the car was missing much worse. Called knapp back and told them. We had to get home! The car is now at country chevrolet in pampa, tx waiting on parts, injectors I am told. The knapp dealership said they stand behind their work and a certified g m dealer would accept their work and warranty. No such luck! I want this car repaired and a reason why other than cover! The bill at country will be $2100.00 I am told. We have always drove g m products. Maybe no longer after this. Why would injectors fail at slightly over 100, 000 miles? Danny mclaughlin 526 townsend st. Spearman, tx [protected], mbar.[protected]@hotmail.com