Andya167
Junior Member
I have a 2014 3500 with a 6.7L engine. I am getting a "Check Air Filter" warning every time I accelerate. The warning comes on for only a few seconds and disappears. There is no warning in the stored messages. at one point a dealer told me that the valve in the cold air box was not working correctly. I have looked at the valve and can't find anything wrong with it. Yesterday I had the warning come on and the check engine light as well, the warning would flash on every few minutes and I did find the warning in the stored message file. This morning it was gone and although the check engine light is on everything seems fine. Any thoughts on what's going on?
