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I have a 2000 Mercruiser 4.3L Vortec with TBI. My ECM is bad
I have a 2000 Mercruiser 4.3L Vortec with TBI. My ECM is bad and from what I understand they are no longer manufactured. The only ones I can find are used on EBAY and they are $800 - $1300 with no gua… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
18,482 satisfied customers
I have a 7.4 L29 engine that won't get timing advance when
I have a 7.4 L29 engine that won't get timing advance when you give it full throttle it goes from 23 to 13 degrees and you get no high speed.… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
18,482 satisfied customers
Ford 351c in a boat: 351c Engine idle fluctuates between about
351c Engine idle fluctuates between about 500 and 800 rpm every few seconds (results in a stall when cold). This is in a 1986 inboard boat (Mastercraft prostar 190 ski boat), it has a marine 4160 Holl… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
18,482 satisfied customers
I have a 1994 Mastercraft Maristar 225. Ran fine for 2 days
I have a 1994 Mastercraft Maristar 225. Ran fine for 2 days at lake, then we had a problem where it loses power at throttle up over 2000 RPMs. This happened after we bought the boat over a year ago an… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
18,482 satisfied customers
have rebuilt tbi carburators the starboard engine will not
have rebuilt tbi carburators the starboard engine will not start, high pressure pump working and as the low pressure pump.… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
18,482 satisfied customers
Please help. I had to rebuild my 1996 5.7LX EFI Mercrusier
Please help. I had to rebuild my 1996 5.7LX EFI Mercrusier with TBI. I removed all accesories (water pump, distributor,power steering etc) I laid them all out of the way. The engine was running when I… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
18,482 satisfied customers
Scott I have an OMC 4.3 1994 and am having issues with the
Scott I have an OMC 4.3 1994 and am having issues with the engine bogging down when wide open and also when the trottle is right above idle. When checking the pressure all cylinders were running 170 p… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
18,482 satisfied customers
have a 2004 volvo-penta 5.0GXI, tried to start today, fuel
have a 2004 volvo-penta 5.0GXI, tried to start today, fuel pump not priming. Worked all day with test probe, but dont have scanner. Was able to take wire harness off of J1 side and put test probe into… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
18,482 satisfied customers
I have a 1999 Mastercraft ProStar that is idling rough and
I have a 1999 Mastercraft ProStar that is idling rough and very sluggish on take-off. Once up to speed, the boat runs fine. The Mastercraft dealership had the boat for 3 months. Thery replaced the fue… read more
Abiorca
Abiorca
Proprietor
Vocational, Technical or Trade Scho
1,768 satisfied customers
I have the same 1998 5.7L as in my previous questions and history.
I have the same 1998 5.7L as in my previous questions and history. I am now having a problem with the electrical for the running, the engine cranks well, fuel pumps as they should, all fuses are OK, b… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
18,482 satisfied customers
1989 MasterCraft Prostar 190 with 351 win., 4 barrel holley
1989 MasterCraft Prostar 190 with 351 win., 4 barrel holley carb. My boat is shutting off after it has been running for a few minutes. It doesnt back-fire or make any noises. It just dies very cleanly… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
18,482 satisfied customers
I have a 2002 Volvo Penta 5.7gsi that cranks over,has spark,no
I have a 2002 Volvo Penta 5.7gsi that cranks over,has spark,no fuel coming out of TBI injectors,the fuel pump does not run 2 seconds when the key is first put to the run position. If I ground the fuel… read more
James
James
Certified Marine Mechanic
Vocational, Technical or Trade Scho
4,094 satisfied customers
I have a 93 boat with a 2 year old 5 litre inboard chev engine.It
I have a 93 boat with a 2 year old 5 litre inboard chev engine.It has a merc outdrive with a 19 pitch prop,no power out of the hole good top end,just put new 45,000 volt coil onstill didnt fix,is it m… read more
James
James
Certified Marine Mechanic
Vocational, Technical or Trade Scho
4,094 satisfied customers
I have a 1988 5.0 liter mercruiser. It idles and starts fine
I have a 1988 5.0 liter mercruiser. It idles and starts fine but when I accel it dies like it is starving for fuel. first time this happened it would not restart. I poured a little gas into the carb a… read more
Scott Martin
Scott Martin
Service manager
Vocational, Technical or Trade Scho
167 satisfied customers
Have a 1998 mastercraft Prostar 205. Need to remove 32 Gal
Have a 1998 mastercraft Prostar 205. Need to remove 32 Gal Moeller Rec. shape Gas Tank (located at the rear of boat)for inspection/cleaning & possible replacement. At production Tank was placed in boa… read more
shane j forrest
shane j forrest
Vocational, Technical or Trade Scho
270 satisfied customers
Mercruiser 4.3 EFI cranks but no start. No Warning Tone with
Mercruiser 4.3 EFI cranks but no start. No Warning Tone with key on and no fuel pump running… read more
Whitecap36
Whitecap36
Service Manager/Technician
Vocational, Technical or Trade Scho
1,476 satisfied customers
Hiya... I am little confusing on which to order the parts online.
Hiya... I am little confusing on which to order the parts online. Am afraid to get the wrong one. Maybe you could help me out. It is for my boat. The carburetor need be cleaning. Since, it is not gett… read more
Scott
Scott
Marine technician
Vocational, Technical or Trade Scho
542 satisfied customers
My daughter has a 93 Mastercraft Prostar 205 with a Ford 351
My daughter has a '93 Mastercraft Prostar 205 with a Ford 351 engine. It is a Florida boat that was taken to Colorado. they will be boating at 7,000 feet above sea level. We are working on getting the… 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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