Mercruiser 5.0 liters engines
 

Hi.
Here is one problem no dealers could find or fix so far.

My rinker has two 5.0 liters mercruiser engines, lately at 3000rpms one engine will quit completely but will restart right away after, and worst sometimes his the port engine and some other time is the starboard engines other wise the engines run fine.
Dlrs have check the codes from the engines and replace many parts but the problem is still there. Some days it will not happen others days it will happen 2or 3 times.
Any type of Infos will be appreciated.
Paul
Ottawa,Canada