[markdoddridge]

Update: after fighting tooth and nail to get my truck back from the dealership (They said they couldnt release it, its unsafe to drive) i took it to Titan Automotive.

Their second opinion was practically the same as the dealerships, one of the CATs is coming apart and causing the noise. They quoted me the same price as the dealership, but arent pushing a $300 fuel line flushing, so im going to go with them.

I feel like i can trust the dealership more now, it makes sense that if dirty fuel caused the CAT to break then fixing the problem is a reasonable reccomendation