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Mercruiser 5.7 Efi stopped while cruising now just cranks

Engine, transmission, I/O, OB and generator repair and maintenance discussion forum.
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goodday
Posts: 226
Joined: Sun Aug 10, 2014 9:15 pm
Vessel Info: 1999 2600 Mart. 5.7 bravo3
Location: Wauseon Oh,
Has thanked: 25 times
Been thanked: 35 times

Re: Mercruiser 5.7 Efi stopped while cruising now just cranks

Postby goodday » Wed Jul 26, 2017 10:58 pm

The box of wires with lift lid, unplug connection reconnect, maybe corroded pin or broken wire, everything engine runs through
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goodday
Posts: 226
Joined: Sun Aug 10, 2014 9:15 pm
Vessel Info: 1999 2600 Mart. 5.7 bravo3
Location: Wauseon Oh,
Has thanked: 25 times
Been thanked: 35 times

Re: Mercruiser 5.7 Efi stopped while cruising now just cranks

Postby goodday » Thu Jul 27, 2017 8:16 pm

Open your wire box and dis connect the wire connection,rehook up, I had a cut out happening, I think it was a wire prob. But it resolved?,or if it's not starting move the wires around a little and see if fuel pump works, just a prob. I had , similar sounding to yours
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bjt0307
Posts: 19
Joined: Fri Jul 08, 2016 11:43 am
Vessel Info: 1998 3000 Martinique
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Re: Mercruiser 5.7 Efi stopped while cruising now just cranks

Postby bjt0307 » Mon Jul 31, 2017 10:57 am

Its the fuel pump. The new pump is expensive. Gen 2 cool fuel pump is $516 plus 4 hours labor. I may get second opinion as another marina quotes me more than half that.
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goodday
Posts: 226
Joined: Sun Aug 10, 2014 9:15 pm
Vessel Info: 1999 2600 Mart. 5.7 bravo3
Location: Wauseon Oh,
Has thanked: 25 times
Been thanked: 35 times

Re: Mercruiser 5.7 Efi stopped while cruising now just cranks

Postby goodday » Sat Aug 26, 2017 10:06 pm

What finally ended up with your probleums, did you get it solved?,
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