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!
97 jeep cherokee sport will not charge
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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