Cadillac Repair Questions? Ask a Mechanic for Answers ASAP
The first thing I'd be checking is fuel pressure. Is this something you intend to fix yourself, or just looking for some ideas about what it might be?
No, not in the classic sense. It has a single fuel line that goes up to the engine, and the regulator is in the fuel pump assembly. My suspicion is that the fuel pump has failed, and a fuel pressure gauge would be necessary to test this. Is this something you intend to do yourself?