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Q: Why would the voltage fluctuate in a 2003 Jeep Grand Cherokee and cause stalling and battery to reach low voltage?
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What makes the voltage gauge fluctuate when the turn signal is on?

A short in the turn signal wiring can cause the voltage gauge to fluctuate. A loose ground wire can also cause the gauge to fluctuate.


What is the voltage on 2004 Jeep Grand Cherokee battery?

12 Volt. Next time, be more detailed on your question.


Why would your alternator fluctuate on a 2000 gmc sierra my alt crapped out and i changed it twice and both times the voltage fluctuates and the battery light flashes connections and battery good?

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Why voltage regulation is necessasory?

Voltage may fluctuate due to improper wiring/groundings or sometimes due to sudden load changes. So as to give constant output voltage we need voltage regulation. If we let the voltage to fluctuate then it might cause damage to the equipments


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Jeep Cherokee alternator doesn't charge battery alternator tests fine when not in vehicle?

check your fuses if they are good the voltage regulator is in the pcm eng computer


What are the ODB1 codes 12 14 15 on 1995 Jeep Grand Cherokee?

12 Battery voltage disconnected14 MAP sensor voltage too low15 No vehicle speed sensor signalAnswerSee the web site to the right.


Why does the battery voltage fluctuate from 14.4 volts to 12.6 volts and back again while driving?

The battery in your car does not constantly charge while driving. Electricity is needed to run the headlights, starter, radio, etc. In order to save wear on the alternator/generator, the battery is sometimes used to power these electrical devices as your car's internal sensors see fit. When the battery's charge drops below a certain voltage, the alternator kicks in again to keep the battery at its optimum level.


Why does your 2001 jeep Cherokee start but not stay running unless you keep your foot on the gas pedal?

You need a new battery. The same exact problem just happened to me in my 2002 jeep grand cherokee. The computer in the vehicle wont let it run unless it is getting a high amount of voltage from the battery. When you replace the battery, the problem should be fixed.


1996 Grand Cherokee 6 cyc Will not idle when started cold Runs normally when warmed up Is it a bad sensor?

I took the vehicle to the dealer service department. It turns out the vehicle battery was not providing the correct voltage. Once the battery was replaced, vehicle is running properly again. In the future I will check battery condition / voltage first.