check your fuel pressure.
bad solenoid,& starter
It could keep the engine from running, but not the valves from moving.
I have a 2005 chevy malibu and had the same issue... It's the fuel sensor.. Need to replace fuel system
Its your fuel pump very common on those cars
If the check engine light is illuminated, start with scanning for codes.
i would like to know what would cause the miss firing in Chevy Malibu
What would make your speed odometer stop working after putting an alternator on? 2005 Chevy Malibu
Plugged catalytic converter?
Underneath you would have to get under the car
The subframe would be the same. The only thing with different engines would be engine mounts. But that has nothing to do with the subframe.
frozen pulley
The ECU would have to be reprogrammed.