In a word yes. If you have a major failure, and there have been a few, and anyone knows you have or have had a delete they will void you warranty. Period. Dealer has nothing to say about it because ford will send a rep everytime. You might get a way with it if you put it back stock every time you take it to the dealer for anything.if i delete dpf and leave the cat does it viod my warranty
Your right, paint warranty is still good. Engine warranty is not. I saw ford deny an engine repair because he had a cai on it. The problem was coolant in the #2 cylinder. You and I both know that had no bearing on the failure but Ford still did not warranty it. Get a lawyer. Ford has lawyers on staff to handle things like this.they can not just say you have a dpf delete tuner and void your warranty, they have to prove that the tuner caused the failure, so if you take you truck in because your paint is peeling they can not say you have a tuner no warranty, because your tuner had nothing to do with your paint.