2005 Ford Explorer Q&A

2005 Ford Explorer Question: check charging system message

The check charging system message comes on and goes off while driving. Two auto shops checked the battery and alternator and said they both are working correctly, but the message still comes on while driving. What else could be the problem? -
Answer 1
while you are driving under the a load, there may be a low voltage issue with the alternator. at our shop, we do not drive the car but maybe someone has to drive and monitor the voltage. Roy -
Comment 1
Thanks, I appreciate your help. -
Answer 2
Try to turn on as much consumers as possible while driving, A/C, defroster, stereo, lights, etc.. and see if the message will comes on. If does, that means the charging voltage is insufficient. Zee -
Comment 1
Thanks for the help. I will certainly try tomorrow to see what happens. -
Answer 3
It may be several different things? Just because the alternator is charging it may not be charging enough to keep the light off? Also, most ford alternator have a single wire that sends a signal to the dash to let it knows how much it charging. It may be a faulty alternator, bad connection at alternator or broken wire? Its might be best to have the vehicle look at the dealership so they can trace the problem? I would hate to see you put a $300 alternator on and doesn't fix the problem? -
Comment 1
Thanks for your help. Someone else told me pretty much what you said. Everything tested ok, so it may be a loose wire connection. -
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