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Unread 10-01-2013, 01:25 PM   #16
cbourdon
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Location: Sheridan, Indiana
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Same issue, short trip to town, everything worked as normal. Stopped for (5) minutes, Jeep would not start. Weak interior lights and (1) click from the starter. Jump started, dash voltage meter pegged and ck gauge light on. Approx a mile down the road, meter came back to normal, ck gauge went out. Got home and let it idle for an hour, for what I thought, to recharge the battery. Again, (1) click from the starter. Long story to a short question, can the alternator go bad that fast ? Grounds and terminal connections solid, mildly dirty ... boom to bust after (5) minutes in the parking lot.

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Unread 11-15-2014, 06:58 AM   #17
moranparamus73
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hello all I have a 1998 grand Cherokee this morning I was on my way to work my gauge lite came on my alt gauge was at 9on dash then was pinned to zero with my truck running anyone no what mite be the prob
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Unread 11-15-2014, 07:35 AM   #18
CJ7-Tim
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Test your way to the source of the problem, alternator-wires-wire connections-battery. The alternator should be your first suspect.
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Unread 03-14-2015, 03:03 PM   #19
tjgaddy
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regarding spiking meter

Quote:
Originally Posted by cgutta View Post
I have a 2001 Jeep cherokee limited 4.0 straight 6.....It has 108,000 miles on it....I have had it for 2 months....recently the check gauges light came on and the battery indicator was pinned at 19......It was on for about 6 miles or so then went off....back to about 14 volts wich is normal, then it went back on again for a few miles....I shut the truck off clicked the key over without starting it and it read at normal voltage...started it up and for the past few days no light and it reads at normal voltage with no problems.....YET...So what I am wondering is, could it be the alternator and is the voltage regulator in the alternator or could it be the ECM, or PCM....I guess i could replace the aternator with a new one and eliminate the alternator concern...if its the ECM or PCM how pricy is that? let me know you thoughts if you have any....Thank you.
I have had the same issue, turns out under the connector on the fire wall side of the fuse box that sits in front of the battery is a 10mmm nut holding down several wires and commonly these wires corrode and give you a meter spike and eventually the new battery and alternator will fail again, seemingly but it may just be the simple connection needing to be cleaned (sanding cloth or paper or wire brush)
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19 volts , 9 volts , alternator , battery , check guages light

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