Mercruiser 5.7EFI just died on me and seems to be hot.

[brpesa]

Hi
Today I was coming back to marina port engine just shut off and I didnt want to start again,so I get back on one engine.
I open engine hatch went down and exaust manifold on the port engine are very hot but the starboard engine just warm like should be.
Temperature Gage read 175f on a both engines.
Before the engine stop working alarm didn't beep,and everything was seems to be fine.
All other gages reading normal.
What could be wrong? Where should I start?
Boat is 1998 maxum 3000 5.7 EFI

Thanks

 

[Saqbcq]

Re: Mercruiser 5.7EFI just died on me and seems to be hot.

Check for spark and fuel. If you believe it to be a temp problem test the temp sensor. Has it started since then?

 

[brpesa]

Re: Mercruiser 5.7EFI just died on me and seems to be hot.

No it didn't start after is being sitting over night.I vent to marina yesterday engine was cold but no start.
I did took off air filter to see if any fuel spray in carb,but no fuel is coming up.
I mentioned that engine exaust manifold was hot because that was first wrong thing that I see, but don't know if has anything to do with start up the engine.
I speak with my mechanic today he said most likely fuel pump or relay.