One beep every minute. I used scanner on it showed "random misfire" I have changed O2 sensor, spark plugs and wires, rotary cap, checked all fluid levels. Beep continues once every one minute, we timed it. Any recommendations on next step to take. Engine is running smoothly. How do I get this beep to go away?
I have a 2010 QCW 2575 with 350 mag Mercruiser I/O. Bravo 3. One BEEP EVERY MINUTE
- Thread starter DStewart
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1trotter
Well-Known Member
thermostat?
Debob
Member
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Same thing happened to me. Mine was a misfire. Was told even had i fixed the problem I would still have the beep. Had to have a tech come out and clear the code.
BigKahuna
Well-Known Member
On our Mercruiser I/O we had 2 occasions where we had the 1 beep every minute. The first time it was the O2 sensor on the port side. (There are 2. We replaced them both) The 2nd time it was low gear lube in the reservoir.