Question about Mercury Grand Marquis
1998 mercury grand battery not charging put new alternator battery still not working
Is the battery light on the dash board working? If the light does not work the alternator will not charge, it needs the power from the light to energise the rotor.
Posted on Dec 31, 2013
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Posted on Jan 02, 2017
No, You've gone down that route of changing alternator's (3 times too many) you need to find an auto-electrician, or if you know your way around a multimeter then test the battery voltage when stopped should be 12 V , when running should be around 14 V. & they should test the current being drained with the car off & hunt down the power drain taking system's off line one by one.
Hope this help's !
Posted on Sep 21, 2009
On the terminal maked"l" you need to put switched power from the ignition[ the problem], will go away.If this is not an option then you can get an alternator repair shop to put a self exciting regulater and it will kick in with a quick rev of the engine,no wireing required
Posted on Dec 08, 2009
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