1990 420 - Need help locating water temp help sensor for alarm panel

steveadil

Member
Aug 2, 2014
34
Mystic, CT
Boat Info
1990 420 Sundancer
Engines
Caterpillar 3208TA
The alarm panel on my 1990 420 Express Cruiser (the boat shaped panel at the helm with idiot lights and buzzers) is indicating "high water temp" on my starboard engine above 2,400 RPM's. The gauges show normal and IR readings correspond with the gauges. The sensor for the gauges (Cat 3208TA's) is on the front of the engine on the top right. I need to find out where the sensor is for the idiot light/buzzer.

Thanks!

Steve
 

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