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Topic Review (Newest First)
03-19-2008 11:37 PM
MidnightYJ90 it was the starter, she is running like a dream now!
02-27-2008 11:00 PM
MidnightYJ90 cleaned the terminals and tightened the cables still nothinggg
02-27-2008 06:29 PM
MidnightYJ90 battery is reading 12.14, not much computer in this thing alot of shyt is disconnected haha
02-27-2008 06:27 PM
4.0l sahara Also on a modern car thats not the best thing to do. It can cause a voltage spike and kill the computer and other things.
02-27-2008 06:15 PM
MidnightYJ90 i disconnected the positive lead and the alternator is keepin the engine running, ill go clean the top and the posts and maybe that'll do it
02-27-2008 06:08 PM
4.0l sahara Get out the multi meter and do some testing. Don't just be a parts changer.

With jeep off battery should be around 12.6v

with jeep on around 14v on meter

Do a resistence check on the battery cables
Check for a big voltage drop from battery to starter.

have the alternator output checked

Do a load test on the battery. cheap way to do it is to hook up a meter disable the ignition and crank for 15 sec the voltage should stay above 9.5v

Is the top of your battery dirty? That can cause a drain. voltage will seep across the top.

Do you have a electrical drain or short?
02-27-2008 06:00 PM
02Prove Perhaps the alternator you replaced was bad also?
02-27-2008 04:56 PM
grrr starting trouble

I guess to ask what i need to i have to start from the beginning. over the hunting season the jeep had some alternator->battery issues, both were changed ( Optima Yellow) and it was found that there was a short inbetween so a jumper was used and everything was great untill yesterday. now the dang thing is starting very weak but once it goes the gauge jumps to 14 and when i turn it off and back on its fine...but if it sits for a day its weak again. any ideas?

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