fuel pump issue

[mikeheron]

here is more info boat is a 1997 searay 185 engine is a 1997 mercruiser 4.3 sn 0k157041 it is carbed, my fuel pump does not shut off when the ignition is turned off. there are no relays that i can see only a 50 amp circuit breaker near the ecu. ive reset it and no change. i also just change the ignition switch and i still have the problem. any ideas? boating season is a month away and i want to be ready.

 

[JUSMARCEL]

Re: fuel pump issue

There sounds like a short between switch and pump. take yur 12 volt tester with switch off and start at pump find where power is coming from. hope this helps, Marcel

 

[Faztbullet]

Re: fuel pump issue

Either the oil pressure switch is stuck closed or fuel pump relay stuck...its on the plate where ignition module is and looks like below.

 

[oops!]

Re: fuel pump issue

lets say we just move this to the correct forum

 

[Pete104]

Re: fuel pump issue

You saying this ain't a merc problem? That means you know it's a boat problem! Key switch bad? Being a Sea Ray, that's merc.

 

[achris]

Re: fuel pump issue

You saying this ain't a merc problem? That means you know it's a boat problem! Key switch bad? Being a Sea Ray, that's merc.

It was in the outboard section, Oops! has moved it to the I/O section...

The only way you can be getting power to the pump with the key OFF is if there is a short in the starter motor slave solenoid.. Or someone has hard wired the pump because of the usual problem with the oil pressure switch....

Is this a new boat to you? or is this a fault that has just started on an engine you have been using for a few years...?

Need some history.

Chris.......

 

[Pete104]

Re: fuel pump issue

Thanks for the heads up! Didn't see it coming.

Carry on!

 

[mikeheron]

Re: fuel pump issue

the boat is not new to me just started and the end of last season

 

[mikeheron]

Re: fuel pump issue

There sounds like a short between switch and pump. take yur 12 volt tester with switch off and start at pump find where power is coming from. hope this helps, Marcel

will do thanks