I understand your frustrations. i have n several different facilities to have my diesel pusher worked on, some with the advice from others as to how good a place was for them. Then I go in and have some issues, I guess you never know. One thing I won't tolerate is being flat lied to and then catch a manager in that lie. That is unacceptable to me. The way I see it, if you screw up or install something wrong, at least own up to it. Don't try to cover up your mistake by telling me it was another problem instead of what they installed wrong to start with.