Mercruiser new 6.2l 350 hp

[time2market]

Hi
2 years old engine after service.
Engine get into guardian after smart craft notice - low block pressure.
No active faults when diagnose pc connect
Any idea??
Tnx

 

[Bt Doctur]

replace the impeller

 

[time2market]

replace the impeller

It was replaced last month..

 

[johnnygjr]

was entire pump changed,or just the impeller? Was sealer used on plate and housing?

 

[Docksidemarineservices]

The water pressure sensor is known to fail. Also The three wire plug must be free of corrosion on the pressure sensor.

 

[time2market]

was entire pump changed,or just the impeller? Was sealer used on plate and housing?

Yes, sealer was replaced as well.
It a 3 years old cruiser that dock at the Marina.
3 month ago she was pull out for service.
I suspect its bad sensor or some barnicals block water line.

The engine is not overheat, i guess its because remain on low rpm..

Tnx