Charging system

Asked by Mar 31, 2016 at 07:24 PM about the 2002 Mercury Mountaineer 4 Dr STD AWD SUV

Question type: Maintenance & Repair

I have a 02 mercury mountaineer and the check
charging system light keeps coming on I have
changed the alternator 5 times with the best one
lasting 2 weeks 4 were ringing remanufactured the
other was brand new they all have lifetime
warranties it is still continuing to do it I do not
know if it is the computer and if it is where it is
located I had it tested and they said that it was
good but it is still acting up anything would help
thank you

4 Answers

19,800

Check in owners manual or go on line for owners manual and check location of alternator fuse to see if it is blown or bad relay.

1 of 1 people found this helpful.

I had checked them already I forgot and left it out

19,800

Check power going to the wire that is screwed onto alternator with a test light should have constant power going to it even with key not in the ignition. If no power may have a fusable like in that wire.

1 of 1 people found this helpful.
10

probably the fusible link [ red wire with lt blue tracer ] that runs from alternator to main wire from fuse block . I think its a brown wire that turns to red with blue tracer that is the fusible link

1 of 1 people found this helpful.

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