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Glove0950

Boat came to sudden stop help!

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Glove0950

Hey everybody not sure what to do, 2011 lsv and 3 times now while cruising and pulling somebody boarding the boat has went from cruise to a complete stop. No warning, no faults nothing and has no rhyme or reason. Anybody have any ideas on what could cause this? It's such a scary and dangerous thing because of having a follow bost and throwing everybody on board forward. 

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JeffK

Can you be more specific?  The engine shuts down or is still running?  Any noises? 

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Glove0950

There was once the motor shut off the other times the engine was still running but it just took all throttle away once I went to neutral and gave it gas again it was fine. It's very strange 

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asp13

Hmm, was cruise/perfect pass on?

 

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JeffK

Does your throttle lever go to an idle position or does it stay where it should be? 

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Glove0950

Yes cruise was on and engaged, throttle stays where it should be 

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JeffK

perfect pass or malibu cruise?

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Glove0950

Malibu cruise that's built into the maliview

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JasonK

You've got to secure the anchor to the swim pad or it falls off and....

Sounds like your wedge dropped and acted like an anchor.

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sabre

Are you using a paddlewheel or GPS?  I had that happen once or twice using GPS.  What happened was the GPS lost signal (controller was bad) and showed my speed much higher than actual, which backed the throttle down to the point I wasn't moving (and then the cruse shutoff because I wasn't moving)

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JeffK

No over-revving of the engine like something is slipping or noises to go along with it?  Just total loss of acceleration?  Still in gear and idling?  I'd start looking at your throttle position sensors on the throttle itself and make sure nothing is loose back there.  Seems like it is losing signal, but it is hard to tell for sure as we don't have a lot of information.  Might be best to try to really describe the situation in detail. 

"We were going this fast pulling a skier with cruise engaged......."

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Glove0950

Okay sorry for the short info, I'll do my best to describe exactly what happened. So we were pulling a wakeboarder at 21 with cruise engaged, and it happened one time while surfing as well at 9.8 no slipping, no abnormal sound,  no alarm, no heads up at all the boat just stopped suddenly with no rhyme or reason to why that I have been able to figure out. The throttle was still engaged where it was to get the boat to cruising speed. 2 times this happened the engine shut off. 2 times this happened the boat was still running not in gear just at idle. I backed the throttle off to neutral position and hammered down cruise control set and never happened again. It's very very very intermittent which also makes for a very hard troubleshoot. I am using the factory malicruise on 2011 lsv so I dont know if that is a GPS or paddlewheel based cruise system. Any other questions you guys have fire away I'll do my best to answer nobody I have talked to has any kind of explanation of what could cause this so far. I ran into the boat surfing the last time it did it and we almost dunked the bow hard because of the sudden stop 

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Glove0950

It's also not a slow dropoff in speed. It will go from whatever speed the cruise is engaged at to 0 immediately. 

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JeffK

So it goes to neutral or to idle?  Need to make sure which.  One is a mechanical linkage and the other is driven by sensors.  Still in gear and idling forward or idling in neutral?

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Glove0950

Not in gear idling forward. Complete neutral 

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JeffK

Ok.  You need to check your connections at the back of your throttle control and at your transmission.  It shouldn't slip out of gear, even with a cruise or throttle issue.  I say all of this assuming that you have throttle by wire, but a manual transmission cable.  I can't keep all the years straight.

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Glove0950

If it was slipping out of gear wouldn't the engine stay revved due to the throttle still being at 70 (guessing) %?  The whole thing doesmt make sense to me I was thinking it would be something to do with the cruise but I put of my element here on this one. I will check all connections when I get home at the trans. Thanks for the help i really appreciate it 

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JeffK

I'd start looking at the helm control, since both seem impacted.  Otherwise, I'd say it would stay revved.

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JasonK

I don't think you guys get it. It came to a sudden stop. Killing the throttle doesn't make it stop suddenly.

Maybe he hit a shallow spot? Or a lake monster grabbed it lol

How fast does a wedge stop the boat if it's deployed to max wedge, from the stowed position, while under way?

Is this an april fools joke?

Are there floating logs in your lake?

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JeffK

I hear ya, but I think sudden stop is relative.  These boats will slow pretty much immediately if you bring the throttle down to nothing.  They don't glide across the water like I/O's do

Edited by JeffK

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Glove0950

The wedge didnt move any either it stayed in the same position (2 clicks up wakeboarding half way for surfing) the throttle control also did not move at all. And like I said 2 times engine stalled 2 times it stayed running. The person that said GPS was lost would make sense but I'm not sure if that year is GPS or paddle wheel. If its paddle wheel could that be messing up? We were out for 4 hours today with no issue. It does not happen everytime and has done it on different lakes so it's not the shallow theory either. What makes it even more weird is there is no alarm or anything it just stoppes without any kind of rhyme or reason 

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JeffK

Might be worth it to also check your electrical connections at the battery

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asnowman

2011 is drive by wire. Definately start with your battery, a loose connection there has all kinds of strange symptoms. Most 2011 boats are paddlewheel driven, but loss of signal from it will usually cause engine reving, not loss of power. If its a gps based one, it acts wierd when it loses gps, but doesn't just stop. 

Have you had this issue when not using cruise? I would look to your throttle position sensor first, sounds like it is losing that input there.

Any flickering of the malivue when all this is happening?

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G Spot

I would also check to see if you have any active or inactive codes. If it's related to your throttle position sensor I would anticipate a code.

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