Views without duplicates. Can't figure out how to avoid them in this situation.

Greetings, I have spent the better part of two weeks trying to create a view that does not have duplciates and cannot get it done.

An example of my problem is..

Node Type: Car
Node Type: Problem, references Car.
field_problem_taxonomy is a taxonomy content field found in Problem that references Vocabulary "Car Problems"

basically, what I want is to be able to list a Past Problem History with a car. A car may have 10 nodes all dealing with the same problem, lets say, "brake Failure" (found in Taxonomy) I want to be able to list problems without duplicates. Anytime I use an argument such as Nodereferrer:nodes that reference and pass the nid of the car, then I get 10 "Brake Failures". I only want it listed once! I have tried all kinds of filters and relationships and would really like to avoid using any "avoid duplicates" options because that slows things down. (Fact is, that doesn't work anyway.) I have also tried using Taxonomy:List Terms, but then again, I get duplicates. I can't use regular taxonomy here because it would also list another car with the same problem "brake Failure".

Summarize results in views works but the link it provides takes me to the taxonomy term and there again, I will get results that are not wanted, Other cars.

I have searched and searched and it seems I am not the only one with this problem. If it takes php, that is fine but I'll need to pointed towards a snippit or something.

I know this has to be possible.. hopefully with core and modules. All help is greatly appreciated!