Intermitant start for 2019 Rubicon...

[Petesjeepforum]

So sometimes my 2019 Rubicon doesn't start the 1st time.
I step on the break and hit the start button, and "click" that's it.
I have to try numerous times with each time being a different time to start, but it does eventually start.
I checked the battery and it's 14 volt, so it's not the battery.
Any thoughts?

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[Reinen]

The battery should only be 14v while it's getting charged. That's a red flag. Also batteries can produce a fully charged voltage but do not have anywhere near enough CCAs to start an engine.

It's almost certainly your battery, or batteries if you have a Main/Aux. Always replace both at the same time or you will go through batteries much faster than you should.

 

[Petesjeepforum]

I disconnected the aux.

 

[alphawolff]

check your coolant bottle and verify it isn't low.

 

[Petesjeepforum]

I brought it into the dealership and they didn't find any codes.
I agree with you it maybe the starter.
The battery is fine so I know it's not the battery.
Thanks.

 

[Bobby Hank]

Maybe it’s not picking up the key fob being there?

 

[DavidES1]

brake switch maybe going out. Try pressing harder

 

[GabeBoyTheGreat]

I disconnected the aux.

You have to disconnect the AUX AND remove one of the fuses. F42 if I am not mistaken.

 

[PT's19Rubi]

David beat me to the brake switch. The clutch switch on a manual, or neutral switch on an automatic can get flakey also. Try pushing the clutch pedal farther down, or try neutral instead of Park.

 

[Petesjeepforum]

Yes

brake switch maybe going out. Try pressing harder

Thanks for that. I heard about before. I make sure I step hard on the break pedal.

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