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1999 Mercruiser 5.7 EFI with throttle body. Engine has 380
1999 Mercruiser 5.7 EFI with throttle body. Engine has 380 hours and Serial # is OL089049. Boat engine died after 4 days at the lake. Ran great in the morning when back to camp and when went to go out… read more
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Can start engine, but dies when you try to power up, plenty
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I have a 1996 Carver 355 aft cabin with twin 454 crusader XL
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I have a 1998 Chris Craft 240 Cubby with a Volvo Penta 5.7
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I have a problem im trying to troubleshoot with my 1994 sport
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ihave a 2007 tahoe boat with a 4.3L 220 HP I/O Mercruiser engine.
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My 200 hp mercury EFI 2000 year ran perfectly whe we took it
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have a regal 2665, volvo 5.7 engine. Boat started fine yesterday,
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1996 Malibu, Indmar Monsoon 340 EFI (rebuilt in 04), loss of
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1996 Sea Ray with 1999 Mercruiser 5.7 L 350 Magnum. Engine
1996 Sea Ray with 1999 Mercruiser 5.7 L 350 Magnum. Engine starts easily cold and will run for hours at 3,000 rpm at the dock. shut engine down for half an hour and either will not start or starts and… read more
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I have a boat with a 5.7ltr efi mtr which when when ran flat
I have a boat with a 5.7ltr efi mtr which when when ran flat out goes for about 1.5 min then allmost dies befort taking off again for 5 sec then allmost dying but reviving itself to take off and repea… read more
mercmastertech
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I am the orginal owner of a 1997 Wellcraft 2000ss with a Mercruiser
I am the orginal owner of a 1997 Wellcraft 2000ss with a Mercruiser 5.7 efi, it is a great Boat and Engine with only 280 hours. The engine starts perfectly and runs great until it gets up to operating… read more
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Meet the Experts:

Ted G.

Ted G.

Rigger, Diagnostician

2,678 satisfied customers

40 years boating, Safe boating instruct., Offshore Race promoter, Failure Analysis, Expert Witness

Dominick

Dominick

Marine Mechanic

1,009 satisfied customers

25 Years Experience as Mechanic, 20 Yrs Boat Yard Owner/Mechanic, Factory Certified

John White

John White

Marine Mechanic

306 satisfied customers

11 years experience working on outboards, inboards, sterndrives & pwcs

Jason

Jason

Marine Mechanic

22,043 satisfied customers

Degree in Marine Technology. Gas and diesel marine mechanic.

Tan

Tan

MerCruiser Certified Technician

11,409 satisfied customers

40 yrs. experience with complete engine repairs both inboard/outboard and MerCruiser Certified Technician.

Jeff G.

Jeff G.

Marine Mechanic

4,730 satisfied customers

42 years experience, Certified Master Technician, All Major Outboards, Sterndrives, Hi-Performance

Captain Dave

Captain Dave

Marine Mechanic

2,672 satisfied customers

USCG Licensed Captain, 20+ Years Boating, Fishing, Maintenance and Repair Experience

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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