Will a bad air compressor stop 1993 Cadillac Sedan Deville 4.9 liter from starting?

A bad air compressor itself will almost certainly *not* directly prevent a 1993 Cadillac Sedan DeVille 4.9L from starting. The air compressor is part of the air suspension system, responsible for adjusting ride height. It has nothing to do with the engine's starting system (battery, starter motor, ignition system, fuel system).

However, a *problem related to the air suspension system* might indirectly lead to starting issues under very specific circumstances:

* Drained Battery: If the air compressor has been running continuously due to a leak in the air suspension, it could drain the battery, preventing the car from starting. This isn't a failure of the compressor itself, but a consequence of its malfunction.

* Fuse Blown: A blown fuse related to the air compressor could in *very rare* cases share a circuit with a component crucial to starting, though this is highly unlikely.

In short: While highly improbable, a severely faulty air compressor *could* indirectly lead to a no-start situation by draining the battery. The more likely reason for a no-start is a problem with the engine's starting system itself.