John
I had taken my truck to Cottman…
I had taken my truck to Cottman suspecting that a vibration I was feeling was a transmission problem. They found that actually my driveshaft was very loose and repaired it accordingly. A second problem was my "check engine" light, which had been coming on intermittently for months. Other shops had failed to find the problem but Cottman diagnosed a faulty EGR valve. I replaced that myself and have had no further check engine light illuminations. I was completely impressed with the competence and friendliness of Cottman and will happily refer others.
Response from Cottman of Kansas CityApr 18, 2018
I am glad that fix the problem for you, Thank You, John!
