Hey guys, I'm hoping someone can help.

When my engine is running I'm getting a very distinctive buzz noise from my glow plug relay, bzzzz bzzzz bzzzz - it's constant. I can only hear it with the bonnet open and engine running, no noise when engine is off. Any ideas why it would be doing this?

I've video'd it but the buzz is louder in person..

cant hear a thing

r u sure it is the relay use a stephescope to check once engine is running and up to temp the relay wont be open anyway