Idle speed stalling

[sessasells]

I have a 2005 Searay Sundeck 240 with a Bravo lll 5.0l, serial 0w344212. Was running rough at idle several weeks ago and had shop replace cap, rotor and plugs after diagnosis. Ran great the last several time out. Started fine today but after running 30 minutes, engine dies when throttling back to idle. Will not start without bumping up the throttle, and will die in idle of in gear when throttle lever is brought back to neutral. Also, while running, the SmartCraft gauge system sounds to short beeps on regular intervals (every couple of minutes or so) Any Ideas? Thanks,

 

[Fun Times]

Re: Idle speed stalling

Sounds like your having an IAC issue, Have a look at this thread to see if it helps give you an idea as a starting point.

http://forums.iboats.com/mercruiser...ser-4-3l-mpi-2004-stalling-alarms-615326.html

 

[41 Keys]

Re: Idle speed stalling

I have a 2005 Searay Sundeck 240 with a Bravo lll 5.0l, serial 0w344212. Was running rough at idle several weeks ago and had shop replace cap, rotor and plugs after diagnosis. Ran great the last several time out. Started fine today but after running 30 minutes, engine dies when throttling back to idle. Will not start without bumping up the throttle, and will die in idle of in gear when throttle lever is brought back to neutral. Also, while running, the SmartCraft gauge system sounds to short beeps on regular intervals (every couple of minutes or so) Any Ideas? Thanks,

I would try running exhaust fan while trolling or idling. Your engine is probably getting hot and causing vapor lock in engine. I had the same problem until I started running the exhaust fan at low speeds. When I ran it about 25mph my problem disappeared. Only when I just finished trolling or idling it would crap out.