Intermittent Starting Issues

[herotrooper]

Hey everyone. 

 

I swapped my battery the other day and noticed the positive clamp is rusty and not really snugged down tight on the new battery. Could that be the issue of it losing power when trying to start?

 

I don’t want to clamp it down tight and be left with a dead truck, because right now if I disconnect the positive and reconnect after 30 seconds it usually fires.  

[colinnwn]

Yes. It works once because you disturbed the connection and it has metal to metal contact again.

After the first start the high current causes heat and oxidation across the poor connection so it will no longer work.

Cables need to be tight. I've seen a loose one become red hot and smoke on an old Scout that required a lot of cranking and very high amperages.

Sent from my SM-N950U using Tapatalk

[herotrooper]

Thank you for the reassurance 

[Slartibartfast]

If it's tight and clean, it won't need wiggling around to keep working. You can get terminal cleaner brushes for cheap that'll clean the inside of the terminal and the outside of the battery post. Get it cleaned up, tighten it down, and it should be good to go.