Hello there! Our mercruiser 4.3 MPI (2003 / 130 hrs) recently gave up working. Had been running wonderfully when I decided to stop, relax a bit.<br />When I decided to restart the engine:<br />* Start very shortly at 200 rpm then stop<br />* Restarting again rotation ok but no start.<br />* Notice change in sound of the fuel electric pump<br /><br />Mechanic told me he checked: <br />* Water in filter (little) <br />* fuel filter seems ok <br />* pump Volt Amp feeding ok<br />* Pump pressure (half the recommended values)<br /><br />I am not sure wether there is a device close to the pump to control fuel pressure, if not this means pump is gone? I guess! and also any comments what can cause it (I read somebody has changed 3 pumps in 2 years on a 5.0 MPI) debris<br />blocking filters ??? etc<br /><br />* There was always enough fuel (no dry run)<br /><br />I'd like to find out so to minimise chances of reoccurance.<br /><br />Many thanks in advance for any comments.<br />tommy
