Mercury/mariner 200hp efi rapidly beeps?

[Superkid8]

I have a mercury mariner and I have a beep that fast. I would turn the key and this beep would come on then I turn the motor on and the beep is there again. This beep is like beep beep beep... Really fast the motor is 200hp efi and year 2000

 

[Dukedog]

Re: Mercury/mariner 200hp efi rapidly beeps?

Thats oiler/water signal. Could be cap (known for failure) on motor oil tank (if its full)? could be water in tha seperator? could be a bad module also know for failure. If its doin' it before ya start it that should elliminate tha "rotation" sensor......

 

[slow530]

Re: Mercury/mariner 200hp efi rapidly beeps?

Had the same issue with my motor, same year, mercury version. There is a small box under the cowl on the front of the motor below the EFI control box. it has a red LED on it. If the light is lit, the problem is the motor mounted fuel/water separator filter on the starboard side. Replaced mine and all was well. Make sure you dump the contents into a jar to confirm this was the problem. You will see a distinct separation between the two liquids.

 

[CharlieB]

Re: Mercury/mariner 200hp efi rapidly beeps?

You should get three beeps when the key is turned on as a system check, then it should stop.

Once running, a rapid beeping is an oil alarm.

It is highly recommended to mix oil with your fuel as insurance against an oiling failure, if it turns out to be something else, the you'll just make a bit more smoke thru this tank of fuel.

Check the motor mounted oil tank, while running, loosen the cap and let the oil level rise till it just starts to leak then tighten the cap.

Spark test all cyl's, the alarm module compares signals of the oil pump rotation sensor to one of the ignition coils, any difference, it alarms.