Question about 1996 Jeep Grand Cherokee

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Charging problem put new alt on but still dont charge new battery also,what else can i check.

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  • Anonymous Dec 10, 2008

    97 jeep cherokee sport will not charge

  • Anonymous Mar 29, 2014

    Alt.wont charge battery or run vehicle. this is second new alt. I'm guessing a ground problem but have tried to improve the sidewall ground without any success

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  • 87 Answers

This model jeep uses a computer controlled alternator regulator check the body module and engine computer...

Posted on Jun 08, 2008

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Alternator not charging


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Put in new alternator,shows charging and battery holding charge but battery light stays on. You start car and light stays off for about 15 to 30 sec. than on.


The alt should charge at around fourteen volls , any ways, yogi need to put another battery. A weak alt will kill a good bat.and vise versa

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I got 04 ford focus good battery alternator but no charge also i check fuse box next t the battery and the other inside the car everything is good but my alternator still dont charge


1) check 10A fuse in the batt. juction box (eng. comp.) hot at all times.
2) check the large red battery wire to the alt. for good conn.
3) make sure the alt. is grounded properly
4) gray wire sent from the alt. to the PCM
5) blue wire sent from the PCM to the regulator (alt.)
6) small red wire power frorm the 10A fuse
if all checks out and still not charge replace the alt.

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2002 VW Jetta GLI 2.8 V6 All dash Lights came on Battery Dead (new Battery) Pulled Altenator and had tested (tested ok) Altenator belt torn on side, could this cause problem? What could it be?


this does sound like a bad alternator,have the battery tested and check the connection at battery and positive feed cables form battery,next time all the lights come on have the charging system check dont remove alternator,also make sure the power cable to alternator is good,ive had a few of these they get hot and dont charge, have them tested and they tell me its good, put it back on car and customer is back again,i replace the alt and problem solved. hope this helps.ps check the alt fuse.

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Light stays on . i have a new alt and new battery and new wire leading from battery to starter to alt. if i disconect the battery the car dies. the alt was bench tested and puts out 15.1 volts yet wont...


Check the drive belt tension and wiring connection at the alternator and at the battery. Check for a blown fuse in the fuse block . -hope this helps

Feb 24, 2010 | 1985 Cadillac DeVille

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Battery light came on on my way home from work have super duty 250 diesel 03


Most of the time,the battery light means that the alternator is not charging,or not charging enough.Have it checked,or check it yourself,using a volt meter,attach it to the battery,either one of them,the reading you are looking for is,13.65,to 14.25,volts.Do this with the engine running,and the head lights on,and the ac on,high blower .If it reads any less,the alternator is not charging correctly,or not at all.Check the plug in on the alternator,and the large wire on the back of the alternator,to make sure it is tight,they will vibrate loose on a diesel.If all this checks out o k,then replace the alternator.Charge the batteries up all the way with a slow 2 amp trickle charger,this may take a couple of days to charge,but the slow charge is worth it,it will prolong the battery life,and have less load on the alternator,I hope this was helpful,and thank you for using fix ya!

Jan 05, 2010 | 2006 Ford F-250 Super Duty

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I put in a new battery and altanotor but there is no charge what do i do


i guess you are saying your alt. is not charging....did you check all fuses....and if a rebuilt alt from advance or auto zone they have bad rep for alt and starters

Oct 15, 2009 | 1994 Oldsmobile Silhouette

1 Answer

ELECTRICAL PROBLEM


May I can put a nail in this one for you.The problem is your alternator. The proper charge rate is 13.6 to 14.2v Now get this. The higher the voltage, the lower the amps.Voltage @ the 14.2 end is moving the minimum amps. @ 15 v there os no charging happenning. Go to the other end and you'll find at 12v the alternator is puring the coals to the battery Alt @ max output. The difference between 12 and 13 / 14 and 15 is the is like a buffer. If the alt charges @ less than 13v for any length of time, It goes poof because of excessive heat.which is an indicator the battery is possibly ready to go poof also. Alt. function as a source of maintenance charging when deman is low and a compensator when demand goes up. That is why a low cranking amp battery is for lawnmowers and people that like buying batts and alts.Now, solution! Have your battery load tested. Chances are real good that it is not up to par. Hence, overworked alternator. If so, replace it. 650 to 850 cold crank amps rating . (cca ) Then have your alt tested output checked if you you end up with a new batt. If your alt puts oout in the given range, which should be around but not below 13v) After starting, it will charge heavy to make up for the cracking, but should get up around 13.6v within 15 seconds. Alts charge at all speeds, unlike generators of old which needed speed (rpms) to put out power. Alts do all the thinking and have internal regulators. Well anyway, You didn't ask for a course in Automotive electrical just a course of action. Remember, Battery first ten alt. Good luck. Any autozone or checker parts store can do all that checking for you. -Ned-

Sep 04, 2009 | Mazda MX Cars & Trucks

1 Answer

Short


Tour problem is in the voltage regulator inside the alt.
Replace the alt.

Oct 24, 2008 | 1993 Jeep Grand Cherokee

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