Starter motor?

[Bagehot]

Hi all,

Trying to track down a problem on my 100 series 2uZ. After doing some 4wd’ing with some water crossings I’ve been having a problem with the car turning on. I turn the key and get a click or sometimes I turn the key get a slight delay and then the car fires. I have replaced positive battery terminal and the battery and also cleaned the main earth. Still not fixed it. Could it be the starter motor? Any help appreciated.

Thanks

 

[BenScott]

Have you tried replacing the starter relay or even just removing and reseating it?

 

[Bagehot]

Have you tried replacing the starter relay or even just removing and reseating it?

Will try that. It’s weird because as soon as I connect a Jumpstarter pack to the battery it’ll fire up no problem

 

[TahoeZ]

If connecting a second battery fixes the issue, you have a low-voltage/amperage problem. Does this only occur after the vehicle has been sitting for a while? If so, you likely have a parasitic drain somewhere in the system.