Washington Chevrolet

Went have part that is covered under the emissions warranty and after they replaced the service tech said that part fail because of carbon buildup in the engine and i needed a complete carbon cleaning in my engine for $96 This part runs in oil and is no way exposed to combustion gasses needless to say the service was not to happy with me and when sai my car was ready i found along side build without the complimentary car wash that the salesman promised that i would get with each visit. Also the part that failed had high failure rate for that years model.