An alt is easy to change. Just pull the battery, battery tray, and belt. then un do the wires and I think there is a bolt on top and one or two on bottom. It should take about 30-45 min.

 

Batt sounds low, but it should have fired.

Borrow or buy a battery charger. Charge it up and try again.

If no start dont keep cranking, pull a plug wire and see if it arc's against something metal. If no arc you need a CPS. I'm betting this is your issue.

This job has been hated by many, but i dont find it too bad. Just need a floor jack, jack stands, ratchet, 11mm socket and a ton of extensions.

EDIT: When was the last time this was tuned? While it's charging pull a plug and see what it's condition is. Your looking for a cleanish electrode with just a tanning color. Post a pic if you can.

 

This is exactly what my gf's grand am did today. i jumped it with my jeep and it fired up. The battery is dying. If the battery is pretty new and already dying, check the alternator, but i'm pretty sure you have a dying or low battery.

 

It was just bought so the first thing we did was get a tuned up we're going to look at it on saturday so we'll see what she does

 

Just a note to all any Jeep that is OBDII won't start if you have less than 10.4 volts when cranking. The reason it don't fire in his vid is due to it not sparking do to a low voltage. I'd replace the battier and have the alternator checked out...

 

Thanks Nick. Being a Renix guy I did NOT know that. Is it the computer that needs in excess of 10.4 volts or is it some sensor in the system?

 

That part about it I'm not for sure, but I'm thinking it's the computer.. I even called a Jeep Dealer when I ran into this before and was told about the voltage, but even the tech wasn't even sure what didn't like the voltage drop...

 

I'll give it a little research. I like to know the why part of a question not just the fact that it needs something. I wanna know what need what and why. Guess that helps it to make some sense in my feeble mind.

 

So do I just never had the time to look into it...

 

Well from what I have read today the computer (ECU) seems to be the part that would be at the losing end in a voltage deminished vehicle although I found differing voltages as a minimum in different manufacturers literature. Ford says that the taurus will not generate a signal below 10.8 volts while Honda says that 10.2 is their lowest threshold.
HTH everyone, and Thanks Nick I have learned quite a bit today because of your insight this morning.

 

thanks for all the imput guys my uncle and I were going to replace the battery today but when we tried for a final time to start her the starter started clicking and that worried us and since i think its the alt not the battery we had to call the wreaker and have it droped off at the stealership so i'll get word of whats wrong with it on monday and get back to all of you

 

DId you try jumping it? It appears you may be thinking that the alternator has a role in starting the vehicle, but it does not.

If the jeep is not starting, it would be the battery that's not producing enough juice to start it. It could also be the alternator that's not charging the battery so you may want to recharge the battery or get a new one and try starting it first. If it starts up, you know the battery is low and since it's low and still kinda new, this would point to the alternator not charging it properly, or not at all. Hopefully the dealer will solve your issue.

 

I know how an alt works the battery was not dead it just was low i had enough juice to run the starter and crank the motor but what happened today was the starter just died and i dont know crap about that plus i dont have to pay for it and after we bought the vehicle we never got the electrical system checked out so w/e the dealership will fix it

 

Alright Cool. I just posted it in case you didn't know or if someone else needed the info

I'm betting while you were trying to start it a couple times, you ran the battery juice down even more, maybe low enough that it cannot crank the starter anymore. This is what went down with my gf's car like i mentioned in a few posts up. We kept trying and then it wouldn't crank at all. Jumping it got it started and it has worked since but i'm keeping an eye on it cuz if it dies again, i'm testing the alternator.

Let's see what the dealer says. Good luck man.

 

Yeah i hink it will be allright it was just bad seeing it have to be loaded up on a flatbed right in front of my house