What is the name of your state? Missouri, I purchased a used truck with what I thought was a remaining 3 year/36,000 mile warranty. Therefore I didn't purchase an extended warranty. I have since come to find out that the warranty has been voided by the previous owner and I wasn't informed of this by the dealer. I drive a 2004 dodge diesel and the previous owner had the computer "turned up" to increase the horsepower. This voids the original warranty. The dealership failed to tell me about this and therefore I actually bought a truck without a warranty. Is there anything that I can do to have this problem rectified?