Reply
 
Thread Tools Search this Thread Display Modes
 
Old 07-01-2019, 01:41 AM   #1
Ensign
 
Join Date: Jul 2019
Posts: 11
Default Stumped on alarms

I have a 04 Maxum 2500 se sport. I keep getting 2 beeps about 5 minutes apart (any rpm). Water temp is 175 and good oil psi. I canít find an engine manual so if someone has a link to that it would definitely help me. Iím hoping someone can guide me in the right direction. Right now I feel like Iím on ghost hunters.
__________________

JJ Cano is offline   Reply With Quote
Old 07-01-2019, 11:57 AM   #2
Admiral
 
mmwjr's Avatar
 
Join Date: Feb 2012
Location: Essex, Maryland
Posts: 7,524
Default

Welcome aboard

Under Documents of this site there are Mercruiser manuals and you should be able to find the one for you engine. The computer may have the fault stored in its log so if you have a mechanic have him scan for fault codes.
__________________

__________________
1997 2400 SCR
5.7 Vortec / Bravo 2
Mike
mmwjr is offline   Reply With Quote
Old 07-01-2019, 02:50 PM   #3
Admiral
 
Phillbo's Avatar
 
Join Date: Mar 2012
Location: Lake Powell
Posts: 1,250
Default

Outdrive lube level ok?
Phillbo is offline   Reply With Quote
Old 07-01-2019, 03:08 PM   #4
Ensign
 
Join Date: Jul 2019
Posts: 11
Default

I read some forums and when I get home today that’s the first thing I’m gonna check.
JJ Cano is offline   Reply With Quote
Old 08-30-2019, 12:44 AM   #5
Ensign
 
Join Date: May 2017
Location: San Diego
Posts: 10
Default

Did you get anywhere with this? I have same problem. 2 beeps every couple of minutes. Had a guy hook computer up to boat computer and there were no error codes. Leaning towards the ECM is getting glitchy.
Captncooln is offline   Reply With Quote
Old 08-30-2019, 12:54 AM   #6
Ensign
 
Join Date: Jul 2019
Posts: 11
Default

Nope! Dropped the boat off yesterday to get put on a computer. It acts like it’s in limp mode and starving for fuel. It won’t go over 3600 rpm and should be 4800 to 5000. 2 weeks prior the dry impeller went out and I had a new one put on. I’m hoping that when the heat temp went off it threw it into limp mode. Hopefully I’ll find out soon.
JJ Cano is offline   Reply With Quote
Old 08-30-2019, 02:10 AM   #7
Ensign
 
Join Date: May 2017
Location: San Diego
Posts: 10
Default

Yours sounds worse than mine. Mine runs fine, for the most part. Like I said the computer hookup didn’t find any errors but the readings were a bit wonky at first. But once he reset everything all the numbers checked out. I can actually get the alarm to go off if I shut it off and restart it a few times. 3rd time is usually the charm. So it’s almost like the computer just is glitching or something.
I also have an issue restarting the boat after running it at operating temp. Like if I take it out and go get gas, it won’t restart after fueling. Same if we drop anchor for a bit. Have to put throttle in neutral and “floor it” to get it to turn over. I’ve been every road with that one. Not a “vapor lock” or fuel sensor... This also why some people think it’s time for a new computer. We’ll see.
Captncooln is offline   Reply With Quote
Old 08-30-2019, 03:15 AM   #8
Ensign
 
Join Date: Jul 2019
Posts: 11
Default

I don’t have any starting problems and it runs fine just won’t go over 3500 rpm and that dam alarm. As far as your boat try turning the key on a few times to see if it starts better. It could be a weak fuel pump. Is it mpi? Mine is.
JJ Cano is offline   Reply With Quote
Old 08-30-2019, 03:15 PM   #9
Ensign
 
Join Date: May 2017
Location: San Diego
Posts: 10
Default

Yes, I’ve got an MPI.
I just hung up with mercruiser. They’re super helpful by the way. I call them all the time. You might want to call and get an opinion. *(920) 929-5040‬ Have your engine serial # ready.
He basically said don’t buy a computer. They rarely need to be replaced. He also said don’t reprogram them. He told me a mercruiser certified guy needs to get his computer on there with the right software and “delete” that alarm once it’s ruled out that it’s nothing. Otherwise it’ll never go away. He also doubts my restart issue is computer related. The last guy I had there with a computer wasn’t mercruiser certified. But the guy I’m having look at it next is. I’ll update you.
I was thinking about your RPM. I rarely have my boat over 3700. That said, mine could go higher if I wanted. Sounds like yours won’t. I’ve got 2900 scr with only one engine. It often depends how many people are on board and how many beers they brought! But using the trim tabs I can get her on a plane at around 3500. Anyway... I’ll be playing the tunes loud this weekend to hide that alarm
Captncooln is offline   Reply With Quote
Old 08-30-2019, 03:59 PM   #10
Admiral
 
mmwjr's Avatar
 
Join Date: Feb 2012
Location: Essex, Maryland
Posts: 7,524
Default

Quote:
Originally Posted by Captncooln View Post
Yours sounds worse than mine. Mine runs fine, for the most part. Like I said the computer hookup didnít find any errors but the readings were a bit wonky at first. But once he reset everything all the numbers checked out. I can actually get the alarm to go off if I shut it off and restart it a few times. 3rd time is usually the charm. So itís almost like the computer just is glitching or something.
I also have an issue restarting the boat after running it at operating temp. Like if I take it out and go get gas, it wonít restart after fueling. Same if we drop anchor for a bit. Have to put throttle in neutral and ďfloor itĒ to get it to turn over. Iíve been every road with that one. Not a ďvapor lockĒ or fuel sensor... This also why some people think itís time for a new computer. Weíll see.
When youíre having this problem does the engine not crank or crank but not start?
__________________
1997 2400 SCR
5.7 Vortec / Bravo 2
Mike
mmwjr is offline   Reply With Quote
Old 08-30-2019, 04:16 PM   #11
Ensign
 
Join Date: May 2017
Location: San Diego
Posts: 10
Default

Quote:
Originally Posted by mmwjr View Post
When youíre having this problem does the engine not crank or crank but not start?
It cranks but wonít fire up. Itís like a flooded car. Have to put in full throttle it in neutral to get it to eventually start then quickly yank it back when it does
Captncooln is offline   Reply With Quote
Old 08-30-2019, 06:32 PM   #12
Admiral
 
mmwjr's Avatar
 
Join Date: Feb 2012
Location: Essex, Maryland
Posts: 7,524
Default

Quote:
Originally Posted by Captncooln View Post
It cranks but wonít fire up. Itís like a flooded car. Have to put in full throttle it in neutral to get it to eventually start then quickly yank it back when it does
But no issues when cold? Cold idle issues are typically the IAC. In your case it sounds like a flooded engine which is rare for MPI. Leaky injectors?
__________________
1997 2400 SCR
5.7 Vortec / Bravo 2
Mike
mmwjr is offline   Reply With Quote
Old 08-30-2019, 06:44 PM   #13
Ensign
 
Join Date: May 2017
Location: San Diego
Posts: 10
Default

Quote:
Originally Posted by mmwjr View Post
But no issues when cold? Cold idle issues are typically the IAC. In your case it sounds like a flooded engine which is rare for MPI. Leaky injectors?
It starts on a dime when cold. No issues. Leaky injectors are high on the list. I had them cleaned at one point and it seemed to help a little. Problem is new ones are $250 a pop and there’s 8 of them. I suppose we could remove them after the issue occurs and look for leaky ones but it takes a while to get them off and might be hard to pin point which one(s) are leaky. Thanks for chiming in
Captncooln is offline   Reply With Quote
Old 08-30-2019, 11:35 PM   #14
Admiral
 
Phillbo's Avatar
 
Join Date: Mar 2012
Location: Lake Powell
Posts: 1,250
Default

Quote:
Originally Posted by Captncooln View Post
It cranks but won’t fire up. It’s like a flooded car. Have to put in full throttle it in neutral to get it to eventually start then quickly yank it back when it does
I had a boat that did that. 6.2L Merc. I never did find the issue. Just got use to starting it that way when warm.

I think I remember reading that when you advance the throttle to full the ECM cuts off the air flow. May be a weak fuel pump???? Like I said, we never figured it out.
Phillbo is offline   Reply With Quote
Old 08-31-2019, 12:11 AM   #15
Ensign
 
Join Date: May 2017
Location: San Diego
Posts: 10
Default

Quote:
Originally Posted by Phillbo View Post
I had a boat that did that. 6.2L Merc. I never did find the issue. Just got use to starting it that way when warm.

I think I remember reading that when you advance the throttle to full the ECM cuts off the air flow. May be a weak fuel pump???? Like I said, we never figured it out.
Wow. Iíve stumped several mechanics as well. Iíve also got a merc 6.2. Good bit of info tho, thx. Sorry JJ for hijacking your thread! Iíll let you know if I get the alarm resolved. Cheers fellas
Captncooln is offline   Reply With Quote
Old 08-31-2019, 04:45 AM   #16
Ensign
 
Join Date: Jul 2019
Posts: 11
Default

Well, the shop was a bust! They couldnít read it with the computer because the alarm didnít go off. I told them they had to go over 3000rpm for it to go off but their pit wonít allow them to go that hi. So that pretty much screwed me. However, they did say they could come out to the lake next time we go and check the PC codes. Iíll update when that happens. Dam this is frustrating.
JJ Cano is offline   Reply With Quote
Old 08-31-2019, 05:32 AM   #17
Ensign
 
Join Date: May 2017
Location: San Diego
Posts: 10
Default

Quote:
Originally Posted by JJ Cano View Post
Well, the shop was a bust! They couldn’t read it with the computer because the alarm didn’t go off. I told them they had to go over 3000rpm for it to go off but their pit won’t allow them to go that hi. So that pretty much screwed me. However, they did say they could come out to the lake next time we go and check the PC codes. I’ll update when that happens. Dam this is frustrating.
Bummer. Were they mercruiser certified? The guy on the phone at mercury said if they are they should be able to see a log of the last 20 hrs where all codes that came up should be visible. I’m sure there are different levels of exactly how certified some mechanics are
Captncooln is offline   Reply With Quote
Old 08-31-2019, 03:12 PM   #18
Ensign
 
Join Date: Jul 2019
Posts: 11
Default

They are supposed to be. Maybe I’ll call Mercruiser to be certain.
JJ Cano is offline   Reply With Quote
Old 09-09-2019, 09:45 PM   #19
Ensign
 
Join Date: Jul 2019
Posts: 11
Default Update

Just got the boat back from a certified MerCruiser dealer. They said the idle speed control motor was sticking and no alarms were stored but that was what was causing the beep. Iíll be taking it out this weekend to see and Iíll let you know.
JJ Cano is offline   Reply With Quote
Old 09-10-2019, 12:00 AM   #20
Admiral
 
Phillbo's Avatar
 
Join Date: Mar 2012
Location: Lake Powell
Posts: 1,250
Default

The IAC ?
__________________

Phillbo is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Powered by vBadvanced CMPS v3.2.3

All times are GMT. The time now is 05:23 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2020, vBulletin Solutions, Inc.