John Deere keeps blowing starting fuse.

[jaxs]

There is a relay under the fusible link I can’t find out what it is for.

This is a good time to obtain electrical schematics or even shop manual for your tractor because this likly will not be the last time you need them. If dealer doesn't have them,they can be downloaded online. Meanwhile maybe someone can tell you where glow plug relay is located. You might try and trace wires back from plugs to see which relay control's them. You should be able to determine if relay is working by watching for amps to fall after a brief period of time.

 

[Tx Jim]

I can’t find out which one is the glow plug circuit

JD5045D has no glow plugs or GP circuit.

 

[Tx Jim]

My 5045D tractor keeps blowing the ignition fuse. I disconnected the water pump sensor and replaced the fuse. But it does it again

Did you disconnect sensor(item 2)? I failed to locate temp sensor on water pump in parts catalog. Inhttps://partscatalog.deere.com/jdrc/sidebyside/equipment/77420/referrer/search/pgId/393297396

 

[thepumpguysc]

Follow the wires from the TEMP. Sensor at the neck and unplug it..

 

[Rolandfelder]

I’m going to check it when I get home thank you.

 

[Rolandfelder]

Follow the wires from the TEMP. Sensor at the neck and unplug it..

It works thank you all !!!!!!!!
I’ll replace both of the sensors as soon as I can.

 

[Tx Jim]

Which 2 sensors are you referring to? RE503242 & ?????

 

[Rolandfelder]

Which 2 sensors are you referring to? RE503242 & ?????

 

[Rolandfelder]

 

[thepumpguysc]

Pic #1 is normally the main cause.. I’ve never seen #2 as a problem..