Is this the right position on the Battery Gauge - Page 3 -
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Unread 07-11-2009, 04:31 PM   #31
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1993 ZJ 
Join Date: Jul 2009
Location: PA
Posts: 810
Me and my brother both own '93 ZJ's and both of ours also read the same spot.
Mine is new to me (owed less than a week) he's had his awhile and says it always read there.

Last edited by wickerham; 07-11-2009 at 04:32 PM.. Reason: can't spell!
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Unread 07-11-2009, 04:38 PM   #32
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1993 ZJ 
Join Date: Nov 2008
Location: Kansas City, Missouri
Posts: 1,492
Mine reads 14 volts when nothing but the radio is on. If I start to turn other stuff on it drops to about 9 V when idling.
99 WJ Ltd, Blacked out, 4.7L, 242j Swap, 2'' BB, 245/75/16 Kuhmo Venture AT KL78, Flow Master Super 40, MagnaFlow high flow Cat, Akebono caliper upgrade, Addco rear swaybar, Westin brush guard, Moog Super Trail Boss, Rancho RS5000, Rola roof rack with dual kayak J hooks, PAC-AOEM-CHR, Sony Xplod 1200w amp, 2 Sony Xplod 12'' subs, 118,XXX miles (SOLD)
93 ZJ Ltd, Blacked out, 5.2L, Reman 46RH, Reman 242 Swap, 3.5'' IRO + 2" BB, 33x12.50r15 Mud Claw MTX radials, Bushwacker Flares, 216,XXX miles (Still parked in NC)
04 F-350 SD Crew Cab FX4 Lariat, 6.0 PSD SRW, Head studs, AFE Stage 2 SI Pro Guard 7 intake, Blue Spring mod, 150,XXX Miles

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Unread 07-11-2009, 08:03 PM   #33
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1998 ZJ 
Join Date: Jan 2009
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ZeJokee - That's a sign of either alternator not keeping up, or very likely on a 93, dirty wiring connections. Casper - The battery itself if probably fine, just not fully charged. I'd say charge the battery up, drive it for a while, and see if it gradually drops off.
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Unread 07-12-2009, 09:27 AM   #34
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1997 ZJ 
Join Date: Dec 2006
Location: , Pennsylvania
Posts: 19,796
93 is also notorious for the regulator in the pcm to go out. that would cause an issue like that as well. needs to test alt and battery.

if you're not getting between 13 and 15 volts at all times while running, something in your system is NOT keeping up or working correctly.
'97 zj 5.2, some stuff, some other suff, and some things that even work sometimes.

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