2004 Merc 5.0L MPI, Bravo 3 outdrive in a Trophy 2359
Had just replaced the raw water pump and an idler pulley. Took it out for a test ride and after a few minutes, my voltage reading dropped to zero but everything was still working. A minute later the engine completely dies and all gauges go dead. Now none of the engine electrical works. Fuel pump won't run, starter won't turn and the gauges don't move. Other electronics seem to work just fine. Pushed the main circuit breaker on the engine with no effect. Switched off/on all the breakers at the breaker board. Batteries read 12+ volts. There is no power to the ignition switch or to the little breaker-button that sits below the ignition. It's almost as if the run/off switch is off (but it's not) or as if the throttle isn't in neutral (but it is).
There was an electrical plug up underneath by the raw water pump that I disconnected and reconnected in order to r/r the raw water pump. Don't know what it is, or if it could be related, but it's the only electrical component I touched, aside from removing/replacing the alternator.
Thanks in advance!
-Nick
Had just replaced the raw water pump and an idler pulley. Took it out for a test ride and after a few minutes, my voltage reading dropped to zero but everything was still working. A minute later the engine completely dies and all gauges go dead. Now none of the engine electrical works. Fuel pump won't run, starter won't turn and the gauges don't move. Other electronics seem to work just fine. Pushed the main circuit breaker on the engine with no effect. Switched off/on all the breakers at the breaker board. Batteries read 12+ volts. There is no power to the ignition switch or to the little breaker-button that sits below the ignition. It's almost as if the run/off switch is off (but it's not) or as if the throttle isn't in neutral (but it is).
There was an electrical plug up underneath by the raw water pump that I disconnected and reconnected in order to r/r the raw water pump. Don't know what it is, or if it could be related, but it's the only electrical component I touched, aside from removing/replacing the alternator.
Thanks in advance!
-Nick