Not only me but a lot of people that use this site try & study the problem, Diagnose the fault, at times we get it wrong but if we can save the majority of the people that ask the questions money, the Object satisfy us, Myself, I do not like people getting ripped off, It only takes a quick Question to get an answer, My Source, repairing cars in my spare time, but cars do change in spec so at times we old farts get it wrong, but its not for the want of trying. I hope that answers your Question, & No, I do not take offence.