Help on transmission gauge!

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ragin cajun

Senior Member
Joined
Dec 2, 2014
Messages
350
Location
USA
Vessel Name
presently boatless
Port Cat 3208TA 507 TD transmission gauge goes to maximum reading when keying the system to start without the engine running. Is the sensor bad or to I have an issue with the trans. Boat runs fine when in gear. Any ideas to check will be appreciated.
 
Port Cat 3208TA 507 TD transmission gauge goes to maximum reading when keying the system to start without the engine running. Is the sensor bad or to I have an issue with the trans. Boat runs fine when in gear. Any ideas to check will be appreciated.

What does it read when the engine is running and you're in gear?
 
To test the sender read the gauge with the sender wire grounded and then disconnected. Short and open circuit in other words. The needle should go from zero to full scale. If it does then the sender is bad.
 

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