OEM vs Delco starter

If you have a solenoid on the firewall I'd be looking at that.

 

make sure every battery terminal connection id super clean...make sure all your ground connections are super clean. if all these areas are clean, then i'd suspect an ignition switch, or the solenoid. . it doesn't take much for the battery terminal connections to become oxidized. it does not take much for any and all ground connections get rusty.

 

There was prob nothing wrong with that Mitsubishi. There awesome starters.
Lots guys get 7-8 years out of them.

I'd be replacing your starter seliniod on your firewall.

 

My 01 Freightliner has original starter it’s been overheatedwhile jumping and used to start in gear when clutch was out.I see the new small starters. Wonder if they’re any good. Thinking I should stick with the type I have or even rebuild this one as it seems to have some sort of blessing bestowed on it.Dont know if you have a relay block at all my truck has one on firewall. All it is is a junction block. Have jumped with screwdriver from this block when the small ignition wires and connectors rot out. Hav e helped a couple others fix this Freightliner problem. It hard to see on firewall It’s got to be a connection somewhere. Friends Pete had same problem it was ignition

 

This thread is 2 years old. Why i did not see it before . I would switch to mitsubishi starters before. I am tired to replace them on DD15s.