Check Engine Warning

[sunstate78]

Hey Everyone:

I have a 2004 Sea Ray Select 200 that has a 5.0L Mercruiser 260hp MPI (serial number 0M666426) with a Bravo drive. I took the boat out twice this weekend and it ran great both days other than the "Check Engine" warning coming up on my Smart Craft indicator (with 2 consecutive beeps every minute oir so). When looking at all of the gauges however, everything looked great:

Oil Pressure ? Great (50-60 depending on throttle)
Temp ? 147 Max
Battery 14 volts
Water Pump Pressure ? Great
All Fluid Levels full
No visible signs of anything loose or disconnected

When the boat was out of the water and hooked up to a hose for flushing, the alarm did not go off. I tried twice (two separate days) during flushing to wait for the alarm but nothing. When in the water, it didn't mater whether I was idling or cruising (at 3000 rpms or above), the alarm would go off. Out of the whole weekend, it did stall once briefly at idle but it started right back up. There were also times where several minutes would go by (10-15 minutes) and no alarm and then it would start once again.

Usually the Smart Craft system gives me a reason but all it said was ?Check Engine? and it would beep twice every minute or so. In spite of the annoying alarm, the boat ran great. Any idea as towhat may be the problem? I suspect that I will ahve to have it hooked up to check for codes but am hard pressed to find a reputable and certified service mechanic in Tampa. Any help would be greatly appreciated.

Thanks. Chris

 

[NHGuy]

Re: Check Engine Warning

My brothers 1999 5.0 Alpha Sea Ray was doing that last month. He found the remote lower unit lube reservoir was below the mark. Topped it off and all was well. Maybe the Bravo could be similar? Shot in the dark.

 

[alldodge]

Re: Check Engine Warning

It is probably your sea pump pressure switch, this is the most common fault

The list of two larm beeps (courtesy of Fun Tumes) are:
Two Alarm beeps every 60 seconds are for:
1.) Faulty cam,
2.) IAC,
3.) MAP,
4.) MAT,
5.) knock sensors.
6.) open/short in the engine cooling temp circuit
7.) open/short in fuel injector wiring circuit,
8.) open/short in oil PSI circuit,
9.) open/short in exhaust manifold cooling temp circuit,
10.) open/short in sea pump circuit (most common)
11.) open/short in throttle position circuit

 

[sunstate78]

Re: Check Engine Warning

My brothers 1999 5.0 Alpha Sea Ray was doing that last month. He found the remote lower unit lube reservoir was below the mark. Topped it off and all was well. Maybe the Bravo could be similar? Shot in the dark.

The first thing I checked were all the fluids. The lower unit lube reservoir is pretty full and maybe just a fraction below the full line. Maybe I'll top it off and see what that gets me. Thanks for the advice.
Chris

 

[sunstate78]

Re: Check Engine Warning

It is probably your sea pump pressure switch, this is the most common fault

The list of two larm beeps (courtesy of Fun Tumes) are:
Two Alarm beeps every 60 seconds are for:
1.) Faulty cam,
2.) IAC,
3.) MAP,
4.) MAT,
5.) knock sensors.
6.) open/short in the engine cooling temp circuit
7.) open/short in fuel injector wiring circuit,
8.) open/short in oil PSI circuit,
9.) open/short in exhaust manifold cooling temp circuit,
10.) open/short in sea pump circuit (most common)
11.) open/short in throttle position circuit

Is that different than the water pressure sensor? I just replaced the sensor. If so, where is the water pressure switch located?
Thanks
Chris

 

[sunstate78]

Re: Check Engine Warning

Is that different than the water pressure sensor? I just replaced the sensor. If so, where is the water pressure switch located?
Thanks
Chris

As an FYI... I just had the manfiolds & risers replaced along with the fuel pump.

 

[Fun Times]

Re: Check Engine Warning

Is that different than the water pressure sensor? I just replaced the sensor. If so, where is the water pressure switch located?
Thanks
Chris

Hi there, I don't recall if i used the word switch or not, but if i did say switch, i meant to say sensor.

One quick test would be to try disconnecting both wires going to the gear lube monitor to see if the warning horn stops.

Also from your description, it sounds like the warning horn only happens while your in gear? Ever notice it while in neutral or reverse gear?

Just for reference, Another common one that would sound the warning horn since that list was made is the IAC and/or a dirty IAC muffler. Not saying this is your issue but you don't want to over look it either.

 

[sunstate78]

Re: Check Engine Warning

Hi there, I don't recall if i used the word switch or not, but if i did say switch, i meant to say sensor.

One quick test would be to try disconnecting both wires going to the gear lube monitor to see if the warning horn stops.

Also from your description, it sounds like the warning horn only happens while your in gear? Ever notice it while in neutral or reverse gear?

Just for reference, Another common one that would sound the warning horn since that list was made is the IAC and/or a dirty IAC muffler. Not saying this is your issue but you don't want to over look it either.

The warning always occurs when I'm in gear. I was thinking about the IAC valve & muffler and will check that too. Thanks

 

[Fun Times]

Re: Check Engine Warning

The warning always occurs when I'm in gear.

Have you done any type of service work to your shift cables lately?

 

[sunstate78]

Re: Check Engine Warning

Have you done any type of service work to your shift cables lately?

I have not. Would that have a bearing on the warning indicator? Funny you say that because since I had all the work done with manifolds, risers, fuel pump, etc the "feel" of shifting is different. When I put it in reverse it "stutters" until I give it a little gas. It feels like a cable adjustment but I don't know how to do this. Can I do this out of the water with muffs on? Thanks. Chris

 

[Fun Times]

Re: Check Engine Warning

Would that have a bearing on the warning indicator? since I had all the work done with manifolds, risers, fuel pump, etc the "feel" of shifting is different. When I put it in reverse it "stutters" until I give it a little gas. It feels like a cable adjustment but I don't know how to do this. Can I do this out of the water with muffs on? Thanks. Chris

Knowing this info helps point to a new theory. Since you had some work done to the manifolds & risers. And since the shift cable shift plate is mounted to the manifold risers, In some cases the shift cables will be removed in order to remove either the shift plate or risers depending on what's being done and room to work. So there is a good chance that the shift cables are out of adjustment now and if so then the Bravo shift switch indicator could easily be out of adjustment as well.

If it is, then what could be happening is the ECM may think that your still in neutral gear and free revving the engine up to around 3000 RPM when your actually in forward gear and once you hit around 3000 RPM the horn will sound thinking your in neutral thus not allowing the engine to go much past 3000 RPM.

Later engine models like yours will not allow you to free rev past around 2800 rpm or so in neutral, it will hit a rev limiter type feel if you do it.

Using Mercruiser shift cable adjustment tool part number 91-12427 and if the the link works for you, starting on page 2A-33 in Mercruiser service manual #39 should get you adjusted properly.

Boatinfo - Mercruiser Service Manual nr. 39 - 2006-Up Bravo Drives

Item #18 will sound the warning horn and set a rev limiter if in neutral and revving higher than 2500 + rpm.

http://www.mercruiserparts.com/Show...desc=Shift+Bracket(BRAVO)(SN-0M660000+and+Up)

 

[sunstate78]

Re: Check Engine Warning

Knowing this info helps point to a new theory. Since you had some work done to the manifolds & risers. And since the shift cable shift plate is mounted to the manifold risers, In some cases the shift cables will be removed in order to remove either the shift plate or risers depending on what's being done and room to work. So there is a good chance that the shift cables are out of adjustment now and if so then the Bravo shift switch indicator could easily be out of adjustment as well.

If it is, then what could be happening is the ECM may think that your still in neutral gear and free revving the engine up to around 3000 RPM when your actually in forward gear and once you hit around 3000 RPM the horn will sound thinking your in neutral thus not allowing the engine to go much past 3000 RPM.

Later engine models like yours will not allow you to free rev past around 2800 rpm or so in neutral, it will hit a rev limiter type feel if you do it.

Using Mercruiser shift cable adjustment tool part number 91-12427 and if the the link works for you, starting on page 2A-33 in Mercruiser service manual #39 should get you adjusted properly.

Boatinfo - Mercruiser Service Manual nr. 39 - 2006-Up Bravo Drives

Item #18 will sound the warning horn and set a rev limiter if in neutral and revving higher than 2500 + rpm.

http://www.mercruiserparts.com/Show...desc=Shift+Bracket(BRAVO)(SN-0M660000+and+Up)

Although a cable adjustment is most likely necessary, I don't think it's the source of the alarm issue . The alarm goes off sometimes at idle speed and sometimes when cruising above 3000rpm. It does seem funny, however, that I'm having this problem after having the manfiolds and risers worked on. I watched them pull the plate off the riser which had everything attached to it and also watched them replace it as one unit as well. After having several theories presentated as the potential source of the problem, perhaps the best course of action would be to get the codes read and see what it says. Thanks