Tim's - they were great! I had been told by a previous repair shop that the clicking noise my Jeep Grand Cherokee was making was a normal sound for Jeeps to make and not to worry. I had questioned the repair shop several times regarding the sound and getting the same answer "don’t worry that's just the sound Jeeps make". After getting my Jeep back the sound was, I knew was not right, so I contacted Tim's and they got me in right away and confirmed it was the lifters and apparently if I had driven much longer two of the lifters were already starting to wear on the metal and it was just matter of time before metal was going to shoot out into the engine. Which would have been extremely costly. I appreciate and thank the crew at Tim's for listening and truly hearing my concerns. THANK YOU! I recommend Tim's to everyone I know. Terri