Engine alarm

T

tcat

Member
Jun 7, 2009
35
massachusetts
Boat Info
2001 340 Sundancer 496 Horizons
Engines
496 Horizon/ V drives
Hi all. I have a 2001 340 Sundancer that is throwing a constant alarm on the starboard motor. It has the 8.1 litre motors in it. When the alarm sounded the engine temp was 165 or so , the oil pressure was around 45lbs and all was good. The engine seems to be in limp mode now with the alarm on constantly. The fluids are all full and visually the engine is fine. Any leads would be great? Any way to reset the Smartcraft system. I do not have digital gauges so there is no place to read any error codes. Thanks Tcat
 
Most common problem with conditions as you described is water pressure sensor, I keep two on board. A low reading will cause limp mode, High will just ring the bell. Have someone check first so you don't waste money, but common cause.
 
New info on alarm . Had the local Mercruiser repair man down today and pulled the code from the motor. The fault triggering the alarm was " secondary pump" problem. He has no idea what that is and neither does the people at mercruiser so far. Has this happened to anyone else? I googled searched the "seconday pump" and came up empty. Thanks tcat
 
The only thing I can think of for pumps is the raw water pump and the engine circulating pump. I would call the the raw water pump the primary and engine water pump the secondary but i have never heard of an alram noting that.
 
tbirdvet said:
The only thing I can think of for pumps is the raw water pump and the engine circulating pump. I would call the the raw water pump the primary and engine water pump the secondary but i have never heard of an alram noting that.
Click to expand...


Thank You for your input. I would think if the engine water pump was commonly referred to as the "secondary pump" the people at Mercruiser would be aware that they programmed the on-board computer to recognize the error code. Tcat
 
Final update. Mercruiser called the mechanic and informed him the PCM's in my boat were a recalled item. I guess they are throwing false fault codes. I have 2 on the way. Thanks all for the help. Tcat
 
You must log in or register to reply here.

Forum statistics

Threads
113,274
Messages
1,429,828
Members
61,147
Latest member
Boudica
Back
Top