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I have a 2009 Glastron Gls190, with a MerCruiser 4.3 engine.

Customer Question
I have a 2009...

I have a 2009 Glastron Gls190, with a MerCruiser 4.3 engine. Now the boat tends to beep intermittently. Usually it starts beeping after driving for 10 minutes. The beep could be one two beeps, short or long. If it is above 3000 RPM, it seems beeping a little more. What could be wrong with the boat? Thanks.

Mechanic's Assistant: Will the headlights turn on? Is the battery fully charged?

Yes

Mechanic's Assistant: What is the model of your '09 Mercury?

It is a rebuilt engine. I don't know the model

Mechanic's Assistant: Are you fixing your vehicle yourself? What have you tried so far?

I took it to a local marine repair shop but they could find the problem

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

I meant to say the previous repair shop could not find the problem. In addition, sometimes shifting the throttle could cause beeping too.

Submitted: 11 months ago.Category: Boat
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Answered in 1 day by:
9/18/2017
Marine Mechanic: Boat Doc, Boat Enthusiast replied 11 months ago
Boat Doc
Boat Doc, Boat Enthusiast
Category: Boat
Satisfied Customers: 245
Experience: Expert at Just Answer
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H​I, sorry for the delay. Did the repair shop scan the computer for codes?

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Customer reply replied 11 months ago
No, I don't think they did.
Marine Mechanic: Boat Doc, Boat Enthusiast replied 11 months ago

Beeping on later model Mercruiser engines like your means the computer system has detected a fault. Normally there will be a code or codes stored in there, just like when a check engine light comes on in your car. Do you notice any other symptoms that might give us a clue as to what is failing? (low idle, hesitation, poor starting?).

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Customer reply replied 11 months ago
No other obvious symptoms. The shop said there was some hesitation and replaced the apart plug but it did not fix the beeping.
Marine Mechanic: Boat Doc, Boat Enthusiast replied 11 months ago

I would recommend getting a shop to scan it then. There are just too many things that can cause that beeping to start guessing, throwing parts at it will get expensive fast.

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