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    5.7 EFI ignition issue

    1999 5.7 EFI Mercruiser, Bravo 3 I had this engine rebuilt (new block, exhaust manifolds, ignition control module) rebuilt by a certified Mercruiser repair facility in summer 2007. Motor ran fine last year (about 15 hours) but took it out last week and had problems. After running around 4500...
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    5.7L EFI problems

    I have a 1999 5.7L EFI w/ Bravo III. Engine runs fine for about first 15 minutes and then starts missing around 4000 rpm. Temperature gauge fluctuates more than normal (160-190F). Any thoughts on what might be causing this? I replaced the thermostat and temperature sensors. First time user...
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