Slow crank

[Logan Morris]

Hey,
My jeep has been slow to crank for the past 3 or so days, and ive gotten the battery checked (all good), ive cleaned the terminals and the grounds on the starter and cleaned up connections on the starter, and i checked the fuse, which hasnt fixed the issue. I think the issue is just a worn out starter, but im no experienced mechanic. Was wondering if this has happened to any of you guys and if so what fixed it?
Edit: Also, I dont think its anything to do with fuel lines or bad sparks because the engine runs just fine after it does turn on, no misfires or anything

 

[Rickyd]

It turns over slow?
Does it turn over normally if you drive it and then restart? That indicates the battery is getting drained by something over time.

Starters can be tested by some parts houses.

To answer your question,yes starters wear out eventually and can draw too much current

 

[macleanflood]

Yeah I'd pull the starter and either bench test it myself with a battery or have a parts store check it.

What's your battery voltage now? What's the battery voltage when it's cranking the starter?

-Mac

 

[Logan Morris]

It turns over slow?
Does it turn over normally if you drive it and then restart? That indicates the battery is getting drained by something over time.

Starters can be tested by some parts houses.

To answer your question,yes starters wear out eventually and can draw too much current

No, it still starts bad even after i run it for a little while. (10/20min)

 

[Logan Morris]

Yeah I'd pull the starter and either bench test it myself with a battery or have a parts store check it.

What's your battery voltage now? What's the battery voltage when it's cranking the starter?

-Mac

Ill check what the voltage when cranking the starter is, but voltage is all good at 12.7v when car is off and a good 13.9-14 when its running

 

[cpwolf]

Yeah I'd pull the starter and either bench test it myself with a battery or have a parts store check it.

What's your battery voltage now? What's the battery voltage when it's cranking the starter?

-Mac

I'd agree with Mac, and according to his profile "he breaks sh!t" so he should know, ha.

Kidding aside, only thing I'd add, starters are very easy to pull, but disco the battery. I'm always leery of the parts store test, I'd do it, but I've had them test good because they just spin them, the load is your issue. I've had that on our boat a few times, and tested fine on the bench but replacing still fixed the issue. I'd find a Napa if possible.

I don't like throwing parts without knowing, but trying a new one is an option. Actually I think I had to do that on my son's 08 JK as well.