Annoying beep when motor is running?

[MuskyRookie]

When I turn the key to start my 40 HP Merc, it always beeps once before turning over. Just this past weekend after the motor starts, it continues beeping the entire time the motor is running. I am about to lose my mind from this annoying sound.

Does anyone have any ideas on how to fix this? There must be a wire I can disconnect or something. Any ideas you may have to make this stop before I go insane would be much appreciated.

[Paul Waldowski]

That annoying beeping sound is probably your high temperature alarm. It aint good!!! Is your motor peeing a steady steam? an intermittent stream? It could just be that your intake is plugged. It also could be as simple as the sensor fried.

[ChuckN]

Could be a check engine alarm (sensor of some kind), low oil alarm, or temp alarm. Do not disconnect it as there is something wrong. Could be overheating, but more info is needed. Bring it to a mechanic if you don't feel comfortable repairing yourself...and don't use the motor until it's fixed.

[TSCTSC]

In my yammy, it beeps for 2 reasons - low oil or high temp. Get it checked out. Check your motor manual.

[champion]

low oil, mercs are good about this, it will sound intermittently when oil is below 1/4...add oil and try it, if you aint getting a steady stream, replace the pump...

[Valv]

All the suggestions above are perfect, I would consider more checking why it sounds that trying to disconnect it.

It's going to be a lot cheaper for you.....

[MuskyRookie]

I appreciate all the feedback I've gotten on this subject. If it still beeps sitting in my driveway with the engime off and compleetly cool, can I just unplug the sensor as long as I make sure to keep plenty of oil in? Or is the sensor also serve as an overheating alarm?

[marine_man]

The horn covers oil issues and overheating issues. I would NOT disconnect the horn... figure out what's causing the problem... otherwise you'll probably have BIG problems ($$$) in the future...

[fivebucks]

If it still beeps then why not just run it down the freeway also or turn up your radio so you don't hear it. I got a feeling you are abusing the good people on this site with a spoof, if not I appologize for my smartalect remark.

[hoggs222]

Mine was doing this also. It was from the oil sensor that needed to be replaced. The boat wouldn't go over a certain RPM without choking out. It also happened when I had a pinched hose coming off of the oil reservoir.

[Willy]

I just had the same thing happen to me. In mercs, the constant beep is an oil sensor, the intermittant beep is temperature.

When I had it fixed, the mechanic told me that all that oil sensor does is tell you if you are low on oil. It has nothing to do with the injection system. So, if you have oil in your resevoir, the beep is being caused by either a bad sensor, or like mine, a float was stuck in the oil tank.

If it's an intermittant beep, it's overheating. That is more than likely being caused by a bad impellor. Have it replaced.

[Valv]

If it beeps while on driveway just disconnect one cable from battery.

[Fishing Junky]

My thoughts are with Fivebucks. It's alarming for a reason. Find out why........