Question about 1984 Mercury Capri

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Is there a wirer that runs from the alternator to the battery on a 1984 mercury capri. The car is not charging the battery and I replaced all the battery and starter cables

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From the alternator the AC is converted to DC and regulated so as to make a controlled charging at all levels of the alternator RPM when the engine revs. This is to keep the high voltage of AC to DC from damaging the battery and so the regulator/controller is an important part.
So you must first check your alternator voltage/current , then the controller regulator and the battery voltage change can be seen with a voltmeter across it. Also the currrent to the battery can a be checked with an ammeter in parallel.
So check these tips and comment.

Posted on Aug 31, 2010

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1993 mercury capri charges then doesn't new alternator and battery


It's best to relate symptoms to narrow things down. I assume you are still getting a dead battery when trying to start even after replacing the alternator and battery.
Get a volt meter. Harbor freight sells them ridiculously cheap (about $5). Measure the voltage at the battery terminals when the engine is running. If it is at least 13.5 volts to 15 volts then the alternator is charging correctly. If it is 12 volts then the alternator is not charging the battery.

If the alternator checks out ok, then check for things that could be draining the battery when the car is off. Usual suspect is the trunk light. Put your cell phone on video record into the trunk facing the light, then shut the trunk. If the light stays on, its because the switch in the latch mechanism is faulty. WD40 might make it work, or just pull the bulb. Also, check the glove box light the same way. Good luck...Chris

Oct 09, 2013 | 1993 Mercury Capri

1 Answer

Charging system


If the used alternator quit working then it\'s broke! Make sure your battery is not shorted internally as this could make an alternator work much harder than it needs to. Try getting the alternator repaired at a shop. Buying electrical parts at a junk yard is always a crap shoot...Chris

Jun 26, 2013 | 1991 Mercury Capri

1 Answer

1993 mercury capri not charging,new alternator and battery


Whom ever did the parts replacement, didn't know
how to do any proper testing to resolve

Find a repair shop that can

Apr 04, 2013 | 1993 Mercury Capri

1 Answer

1993 mercry capri not charging


You need a new regulator, or you have a bad ground to your battery.

Apr 04, 2013 | 1993 Mercury Capri

1 Answer

Where is the voltage regulator located in a 1991 mercury capri?


In the alternator,for charging the battery

Unless your talking about some other
vehicle problem

Aug 05, 2011 | 1991 Mercury Capri

2 Answers

I have a 1991 mercury capri. Tonight when i was driving home the tail lights and dash lights quit working and the headlights were very very dim. Is this a broken fuse problem or something else?


Check your alt.. alt voltage output should be at least 13.2, sounds like it's not charging and your possibly running off the battery, as for the dash and tail lights, there both on the same system, check the fuse.

Jul 21, 2011 | 1991 Mercury Capri

1 Answer

My 1991 non-turbo Mercury Capri started fine last night but while idling, the Air Bag light began to flash and the Battery light came on. Not wanting to travel I turned off the ignition switch. ...


charge the battery and once fully charged, do a LOAD test on it, clean all the connections and start the car ,, check the voltage at the battery posts with the car running, you should get between 13.5 and 14.5 volts, if not, replace the alternator , if you do, the battery and the cables just needed some attention

Jul 17, 2011 | 1991 Mercury Capri

2 Answers

1984 Mercury capri 5.0 wil run and sit idol forever but only drives for about 2 miles then loses spark. any ideas for the problem?


Replace the ignition module,they are bad to go out like this,when the engine warms up,the ignition module goes into a mode ,and the mode is not there for it to go to ,If this was at all helpful,please rate,thank you.

Jul 07, 2010 | 1984 Mercury Capri

1 Answer

Mercury capri alternator getting very hot


its the alternator pulley thats defective and in order to pull the alternator you a have to take off the piece with the hoses on it above the alternator and you can wiggle it out

Dec 09, 2008 | 1992 Mercury Capri

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