What's the Ford transit glow plug relay location?

The glow plug relay in a Ford Transit can be found in the main fuse panel that is located under the hood. In the event that Your glow plugs are not working then I suggest that You check this first and replace it with a new one. If replacing the relay does not work then You should check the actual wiring to the glow plugs and make sure that it is tightly connected and free from any fraying that could cause it to short out. If that is all okay then You may need to replace the glow plugs with new ones since they have been known to wear out and break over time in the Transit van's engine.