Question about 1994 Jeep Grand Cherokee

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On my 94 jeep im having an electrical problem, something is killing my battery and i checked the alternator and my starter and i can not find the solution something is killing my battery rapidly please give me any suggestions on what it could be thank you...

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START THE VEHICLE, PUT A VOLTMETER ON THE BATTERY. THE VOLTAGE SHOULD READ 13.90 TO 14.80. IF THAT IS OK, THERE MAY BE A BATTERY DRAIN. TURN OFF EVERY SWITCH IN THE CAR.CLOSE ALL THE DOORS. MAKE SURE ALL THE COURTESY LIGHTS ARE GOING OUT. & THE GLOVE COMPARTMENT LIGHT. RAISE THE HOOD. DISABLE ANY UNDER HOOD LIGHTS. DISCONNECT THE NEG. CABLE FROM THE BATTERY. PUT A 12 VOLT TEST LIGHT, ONE END ON THE NEG BATTERY POST & THE OTHER END ON A GOOD GROUND { METAL }. IF THE LIGHT COMES ON THERE IS A BATTERY DRAIN. NO LIGHT , NO DRAIN. IF IT'S ON, ONE AT A TIME PULL THE FUSES OUT OF THE POWER DISTRIBUTION BOX. IF THE LIGHT STAYS LIT, PUT THE FUSE BACK. DO THIS WITH ALL THE FUSES BIG & SMALL. IF THE LIGHT STAYS LIT, DISCONNECT THE ALTERNATOR. THEY CAN CHARGE THE BATTERY WHILE RUNNING, & DRAIN WHEN STOPPED.

Posted on Jan 12, 2011

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Posted on Jan 02, 2017

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1 Answer

I have a 2004 Jeep Grand Cherokee Laredo. If it sits for more than 24 hours it won't start without being jump started. Has a brand new battery. Could it be the starter?


It sounds like you have a major current draw, the alternator may be draining to earth internally . Once you have the engine running you need to check the charge rate from the alternator as it is controlled by the main computer .Also make sure you don't have interior lights such as a vanity mirror or glovebox light stuck on. This will be enough to kill a battery overnight.

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You have two options. You can replace the starter, or you can wrap your starter with "Header Wrap" to help prevent this problem.

I’m happy to help further over the phone at https://www.6ya.com/expert/jeremy_69f3cc28d95bf514

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1 Answer

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1 Answer

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