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2 beeps every 2 minutes on Mercruiser 5.7 mag

Old 07-05-2016, 01:48 PM
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Default 2 beeps every 2 minutes on Mercruiser 5.7 mag

Engine idles fine. I will get alarm (2 beeps every 2 minutes) when I accelerate to get on plane. This doesn't happen every time. When it does, I turn off the ignition and restart...alarm gone. All gauges (temp, oil pressure) appear to be fine. Someone suggested changing IAC anyway which I might just do.
Question: Should I stay with OEM part at $100+ or get replacement part for $40 - $50? Is this critical?
Thanks for any suggestions.

Last edited by stumped2; 07-05-2016 at 02:02 PM.
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Old 07-06-2016, 01:05 AM
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Have the computer scanned for codes.
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