2002 Volvo Penta 3.0 GSP SX - Alarm Sounding

sgraham

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Joined
Mar 2, 2024
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2
Took boat out and an alarm started sounding, temperature and oil pressure according to gauges were good. Hose have been cleaned out, new oil, the boat was running fine no issues except the alarm would not stop. How do I figure out what the alarm is for? I do not have a wiring diagram and I am having a hard time finding one. Serial numbers from engine block are 3 OGST-C, 40120681543869148, Trans #'s TSKSX-M38688444151006589, Drive #'s SX-M 1.97 38688954202053399. I have a 2002 Regal Fastrac 1800 LSR. Any help would be appreciated.
 

alldodge

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Mar 8, 2009
Messages
40,756
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I don't have a wiring diagram either, but in most cases the temp gauge does not use the same sender and the temp alarm. Look on the thermostat housing to see if there are 2 sensor/switch
 
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