tj40

Whats everyone's batt. gauge reading? I have a new alt. and when I start the jeep it rides in the middle of the gauge, then a couple seconds later it goes to the low end about 3/8" away from the red. I never noticed it dipping that low. Anyone else run low before I break out the volt meter?

00XJ

i just installed a 2000 watt amp and when i got it and my lights goin at idle it goes just below 14

slayingtrail

i have the same issue with my gauge. it will go from the middle then go down to red but i know everything is fine so i keep driving. hasent died yet lol so i know its the gauge. Plus my friends jeep does the same thing i wouldnt worry

LeRoy90laredo

my gauge does the same as well and i used the volt meter to just double check and the meter reads about 14.41 and sometimes 13.8 when the dash gauge shows a little before the red. i dont think its something to worry about like the guys above have said. should be fine.

ca441970

Mine runs just below the 14 mark.

00XJ

ya it will prolly be fine but when gauges are broke...it bugs me. i would find out what sensor controlls that and replace it so you know you have a working gauge

tj40

Ya, jacked up gauges make me crazy, I'm gonna get into a accident cause I'm staring at it constantly. Anyone know what kind of volts I should have with it running and lights on?

slayingtrail

usually 14.7 is normal..anything around that or a little lower is ok

tj40

ya, its acted weird since I changed the alt. last month (seized). The old alt. kept the gauge in the middle most of the time. I may need to go back and swap it out, its a rebuild alt. from a local mom and pop auto parts store. Maybe I will try and knock it out tonight........I keep obsessing about it.

slayingtrail

throw the old one back in and look at the gauge see if there is a difference..or just test both alternators

tj40

the old alt. seized up on me after sitting in the garage for two months. I turned it in when I got my "new" alt. That would be a good idea though.

Truckertom21

mine has been doing that i so one day i took my neg. battery cable off and it still ran so i dont really worry about it. if it dies then thats why i got AAA