1989 Merc 90hp constant beeeeeep!

Rykerman

Cadet
Joined
Aug 11, 2009
Messages
8
1989 mercury 90hp 3 cyl. I am getting a constant beep. Motor runs fine, oil injected, the oil tank is full, cooling is working, little bit of blue smoke coming out in idle tells me getting oil. When i turn the ignition without turning over the motor the beep is there too. Anyone know what this alarm means?
 

Magnetron

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Joined
Jun 26, 2011
Messages
22
Re: 1989 Merc 90hp constant beeeeeep!

Oil sensor is what I was told when mine beep beeped. I had to mix oil with the gas. Maybe your sensor is bad
 

joed

Lieutenant Junior Grade
Joined
Sep 28, 2002
Messages
1,132
Re: 1989 Merc 90hp constant beeeeeep!

Oil sensor would be beep beep beep etc. It is likely the oil module that the sensor is attached to.
 

Rykerman

Cadet
Joined
Aug 11, 2009
Messages
8
Re: 1989 Merc 90hp constant beeeeeep!

DO you know where the module is on the motor and how much it cost? BTW thanks for the reply
 

Rykerman

Cadet
Joined
Aug 11, 2009
Messages
8
Re: 1989 Merc 90hp constant beeeeeep!

Put a new module on and the beeeeeep is gone! Thx
 
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