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Alarm goes on after running for 5 min temp good oil good
alarm goes on after running for 5 min temp good oil good goes off after a bit then doent come on again until next day on going … read more
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Boat Doc
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I was at near stop speed and it nearly stalled not quite but
I was at near stop speed and it nearly stalled not quite but came to a halt and then soon died. I was thinking a fuel issue but would low oil cause it to stop, wouldn't there be a obvious alarm? … read more
Jason
Jason
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Vocational, Technical or Trade School
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I have a mercruiser 496 mag ho, and it won't rev over 3000
I have a mercruiser 496 mag ho, and it won't rev over 3000 rpms. No beeps or alarms changed plugs fuel pressure is good. Plugged in scanner no codes that would affect this situation. So i unplugged th… read more
Charles
Charles
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I am working on a 496 MerCrusier S/N OW612285 and have
I am working on a 496 MerCrusier S/N OW612285 and have several questions to ask if possible. (1) What year is the engine? (2) The engine is port injected is this correct for this engine? (3) Is the en… read more
Tan
Tan
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I have a mercruiser 496 ho and Its Rønning well but after Its
I have a mercruiser 496 ho and Its Rønning well but after Its reach working temprature its like getting a little black out In 1000-1200 rpm. Its sliping down and get a beep then Its kinde Of start ove… read more
briggs archer
briggs archer
master marine mechanic
Associate Degree
402 satisfied customers
Hey. I have two Mercruiser 496 HO. I can´t push them to more
Hey. I have two Mercruiser 496 HO. I can´t push them to more than 3200 rpm. Then it sounds like they switch over to a kind of "imergency" program. Do you have an idear about what´s wrong? Kind regards… read more
briggs archer
briggs archer
master marine mechanic
Associate Degree
402 satisfied customers
Im at the end of my rope..............I have a 2005 Mercruiser
I'm at the end of my rope..............I have a 2005 Mercruiser 496 HO - fouling plugs #3,#5, & #7. Originally I had a problem with #5, changed the plugs, wires, #5 injector and #5 coil. It seems like… read more
orcamarine
orcamarine
Proprietor
Vocational, Technical or Trade Scho
7 satisfied customers
Chevrolet Silverado 2500: 2001 496 ho mercruiser (chevy), we
2001 496 ho mercruiser (chevy), we just put roller rockers on and they hit the valve cover. We only need about .150 more clearance. We have already shortened the poly locks and machined a little off t… read more
Jason
Jason
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Vocational, Technical or Trade School
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do you know where the sending unit for gas gauge would be on
do you know where the sending unit for gas gauge would be on a Powerquest 2005 (32 ft) with twin merccruisers. Boat did not come with any manuals..........I am also searching online for a manual.It is… read more
James
James
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Vocational, Technical or Trade Scho
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2001 Baja with mercruiser 496 HO engine: 1. Where is the location
2001 Baja with mercruiser 496 HO engine: 1. Where is the location of the splices for the supply and ground voltages for the 5 volt sensors (like crank sensor and cam sensor). 2. WHere is the location … read more
James
James
Marine Mechanic
Vocational, Technical or Trade Scho
4,111 satisfied customers
2001 496 ho - new crank position sensor installed. On the 496
2001 496 ho - new crank position sensor installed. On the 496 ho truck engine, there is a teach procedure for the new sensor that uses the ignition and brake pedal. What is the procedure for the mercr… read more
Jason
Jason
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Vocational, Technical or Trade School
21,048 satisfied customers
I have an bell and an engine displaying on my smartcraft monitor
I have an bell and an engine displaying on my smartcraft monitor on my 2004 mercruiser 496 ho port motor. What do I do?… read more
Jeff G.
Jeff G.
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Vocational, Technical or Trade Scho
4,730 satisfied customers
I just had a 496 mercruiser HO engine installed in my Baja
I just had a 496 mercruiser HO engine installed in my Baja 232. The engine will crank fine but it will not stay running. When I push the throttle it shuts off. It will run if a little when you spray s… read more
Captain Dave
Captain Dave
Marine Mechanic
Master's Degree
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My 496 HO Mercruiser will not turn over, batteries are new
My 496 HO Mercruiser will not turn over, batteries are new and fully charged, cables clean good connections, turning the ignition gets a click sound but engine does not turn over, never any such probl… read more
James
James
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Vocational, Technical or Trade Scho
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I need a electrcial schematic of my mercruiser 496 mag ho engine.
I need a electrcial schematic of my mercruiser 496 mag ho engine. My alternator is functioning but not charging the battery.… read more
Jeremy R.
Jeremy R.
5,362 satisfied customers
I have a mercruiser 496 HO with DTS and smart tow (28 Magic
I have a mercruiser 496 HO with DTS and smart tow (28' Magic Sceptor). I put CMI headers on it for performance, but It came with a Bravo 3x drive which I found out after I bopught the boat that this p… read more
Jeremy R.
Jeremy R.
5,362 satisfied customers
I have had problems with a 496 going into guardian mode. The
I have had problems with a 496 going into guardian mode. The computer shows power steering hi, fuel level hi, fuel lvl2 hi and pitot pressure low. I have checked the connections for pitot and there ar… read more
Jeremy R.
Jeremy R.
5,362 satisfied customers
I have a 2005 Mercruiser 496 HO (sterndrive). I need to replace
I have a 2005 Mercruiser 496 HO (sterndrive). I need to replace the seawater pump impeller. There are 1 or 2 brackets attached to the water pump. What is the best way to remove the water pump? I assum… read more
ROCKET
ROCKET
MASTER CERTIFIED TECH
Vocational, Technical or Trade Scho
426 satisfied customers
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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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