I have an '06 sts awd. I've just had the timing chains changed at a dealership and now they're telling me I need a new engine because mines isn't holding the oil pressure. First they said this was because my engine was clogged, which they came to that conclusion because the screen in the oil pan was clogged. Now, they're saying it's because I have an oil leak inside of the engine. I wanna know if anyone has had this problem, or is the low oil pressure a result of the timing chains not being set correctly?