Recently my truck started to make what has been described as a ratcheting sound off throttle ECO light on, goes away in neutral and if selecting a gear or giving more throttle... did lots of research and based on when it happens and how I can get it to go away it is the MDS. I have 150,000 miles on my truck and still running great. Right now I set my gear+ to 8 everytime I drive and all is good. so the question is.. something obviously changed (or broke). Do I go and try to get it fixed? My understanding it is either the cam / timing chain / cam phaser(?) or the MDS solenoid(s)... I was not sure but it seems the solenoid failure would set a CEL, but wasn't certain. Not sure how much it would cost but have a feeling not cheap. I do a lot of my own mechanical work but have not really jumped into engine work. Haven't found a good local mechanic and really don't like heading to the dealership...
Other option is to just turn off the MDS with a tuner... lots of folks seem to do this, but my question here is did you hear the sound first and then turn it off or did you do it before?
let me know your thoughts
Other option is to just turn off the MDS with a tuner... lots of folks seem to do this, but my question here is did you hear the sound first and then turn it off or did you do it before?
let me know your thoughts