Chevrolet Silverado 1500 ( 2004 )
There is an intermittent Morse code style clicking from the passenger side dash while driving. Not sure if this is connected, the oil pressure gauge has stopped working? Are there any checks I can do?

Thanking you in anticipation.

Sounds like a relay is opening and closing. I would certainly have someone check the oil pressure. If indeed the pressure is 0, your engine won't last long.

Relay or a noisy fuel injectors?