Question about 1993 Jeep Grand Cherokee

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Elec. The battery repeatedly drains after, during driving. It is not the alternater. The lights and heater drain at the fastest rate. It is not the battery, the terminals or any immediate connection.

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HAS THE ALTERNATOR BEEN CHANGED? THERE IS AN INTERNAL REGULATOR INSIDE THE ALT THAT CONTROLS THAT GAUGE WHEN IT IS DYING SO IS THE GAUGE. ALT NEEDS TESTED FOR LOAD OUTPUT, SOME AUTO PARTS SHOPS DO HAVE THE MACHINE TO DO THIS, IF NOT YOU WILL HAVE TO STOP BY THE DEALER UNLESS YOU HAVE THE CHARGE START COMPUTER WITH READ OUT. MIGHT CHECK THE WIRES GOING INTO THE REAR OF THE ALTERNATOR AND MAKE SURE THEY ARE BROKEN, ALSO CHECK THE FUSE BOX UNDER THE HOOD FOR CORRISION AND DIRT I HAVE A 97 GRAND CHEROKEE AND TOOK MY FUSE BOX OUT AND COMPLETELY CLEANED IT TO RID OF THIS PROBLEM. GOOD LUCK AND LET ME KNOW. BY THE WAY HAVE YOU ADDED ANY AFTERMARKET PARTS STEREO ETC.??

Posted on Mar 03, 2009

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Probably it is not just charging well.
Go to Autozone store and for free they will check the battery voltage and alternator current. Draining of battery during driving means the alternator not charging the battery back or alternator is not providing current which is less than car consumed and the additional current coming from battery. The common symptoms might be the dimming the lights, heater flow on idling or than rpm goes down.
Hope that helps
Good Luck

Posted on Mar 03, 2009

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