Wont crank and rapid clicking sound coming from relay number 2

[F-350CC7.3]

Like the title says. guages will kinda sputter with the clicking sound. theres a check engine light. wait to start only comes on sometimes. Wont crank whatsoever. Any suggestions?

[Patrick Feeley]

Have your batteries checked idependent from one another (cables disconnected from both). Check all your battery cable connections (all ends of the cables) to make sure they are clean and tight. My brother-in-law's 95 had the same symptoms when one battery internally shorted (we actually heard it go "whump" in the parking lot when it happened). Cheers!

[F-350CC7.3]

Thanks for the suggestion, i checked all the batteries up good and there were fine. i solved the problem. the glow plug relay was shorting out so i just put some electrical tape over the terminals. starts fine now.