Question about 2003 Lincoln Town Car

1 Answer

2003 Lincoln Towncar 130 amp alternator.Red battery light illuminated on dash. Ammeter reveals 0 amps. Replaced alternator and still no change. 12 volt reading at battery terminal of alternator.Wires look fine.Any suggestions? Thanks for your help, Paul

Posted by on


1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Expert
  • 329 Answers

Check the voltage regulator and check for any loose grounds or connections.

Posted on Dec 30, 2010

Testimonial: "Thanks for your help. Any idea where the ground wire for the alt might be located.Any way to check the 3 wires that insert into the rectifier"

  • coleygross Jul 12, 2011

    I was suprised to look at my 2007 manual. Says theirs a fuse that goes to the voltage regulator in-on the atlernator. If you have no charge after an alternator change check that fuse.

    There is also a note about a diode thats used for accidental reverse hookup of battery.

    Alternators can fool you. When only a few of their internal diodes blow the alternator may show no problem. This problem surfaces when the car seems to charge and run good in daytime hours but leaves you stuck during nightime hours. In essense there is simply not enough amps for the headlights but just enough amps in the daytime to run the car and place a mild charge into the battery. This scenario can drive you nuts. When you check voltage at battery I recommend a check with no items on and one with all items are powered on.If the volts slowly start dropping after headlights are turned on its one of those with a couple of the alternators internal diodes still working but not all of them. Thats why no light or error code appears in the day and even in the night.



1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

I have a 98 lincoln towncar i changed the battery and alternator several times but my car is always going dead i mean the new battery and alternator will last about a day wat can it be

Instead of continuing to purchase batteries and alternators, why don't you take your car to a qualified mechanic and have it properly diagnosed and repaired. It certainly would be cheaper.

Oct 27, 2016 | Lincoln Town Car Cars & Trucks

1 Answer

2003 lincoln town car wont start after battery connected

7-12-2013 1995 lincoln towncar wont start ignition fix and ...

? 8:40
Jul 12, 2013 - Uploaded by pokitisme
if u have a 95 lincoln towncar and it just cranks and wont startthe issue could be a couple of things #1 fuses ...

Oct 31, 2015 | 2003 Lincoln Town Car

1 Answer

Find a Diagram for 1989 Lincoln Towncar 4 Door Fusebox

this is for the base model

FUSE PANEL IDENTIFICATION (1983-90 LINCOLN TOWN CAR) The fuse panel is located in the instrument panel to the left of the steering column. To expose fuse panel, remove lower steering column finish panel.

Fuse & Circuit Breaker Identification

· 1 - 15 Amp Stoplights, Hazard Warning Lights, Speed Control Module, Trailer Tow Relays, Cornering Light Relay (1983-89)
· 2 - 8.25 Amp (Circuit Breaker) Windshield Wiper/Washer
· 3 - Blank
· 4 - 15 Amp Taillights, Side Marker, License Light, Parking & Coach Lights, Cluster Illumination, Trailer Tow Relay
· 5 - 15 Amp Turn Signal & Back-Up Lights, Trailer Tow Relay, Cornering Light Relays, Heated Rear Window Relay, Rear Defrost (1988-90), A/C Clutch & ATC Module (1990), Load Leveling (1990)
· 6 - 20 Amp Heated Rear Window Control, Speed Control Module & Clock Display, Illuminated Entry Module, Power Window & Police Accy Relays, Fuel Filler Door Release (1983-87), A/C Clutch & Cornering Lights (1983-89), Deck Lid Release (1987-90), Tripminder
· 7 - 10 Amp Daytime Running Light Resistor (1990)
· 8 - 15 Amp Dome LP-Clock, Key Warning Chimes & Electric Mirrors, Courtesy & Visor Mirror Lights, Autolight & Illuminated Entry Modules, Tripminder, Electronic Radio Memory, Trunk & Underhood Lights
· 9 - 15/30 Amp Heater Blower (15 Amp), AC/ATC Blower (30 Amp)
· 10 - Blank
· 11 - 20 Amp Radio & Power Antenna, CB Radio
· 12 - 20 Amp Door Cigarette Lighters, Power Seats & Door Locks (30 Amp), Tailgate Power Window (1983-89)
· 13 - 5 Amp Illuminated Outside Thermometer, Instrument Panel Lights
· 14 - 20/25 Amp (Circuit Breaker) Flash-To-Pass, Sun Roof, Power Windows
· 15 - 10 Amp Taillights, Parking, Side Marker/Coach, License Lights
· 16 - 20 Amp Horn & Front Cigarette Lighter
· 17 - 15 Amp Electronic Cluster, Message Center
· 18 - 10 Amp Warning Indicator Lights, Throttle Solenoid Positioner, Low Fuel Module & Autolight System, Dual Timer Buzzer & Electronic Chimes, Electronic Message Center


Feb 11, 2015 | 1989 Lincoln Town Car

1 Answer

Dennis my 1995 lincoln towncar JBL radio quit producing sound the system comes on fine but I get no sound could u help me please, what is the problem?

The Amp in the trunk might have blown,
Town Car Radio Wire Diagram
Car Radio Battery Constant 12v+ Wire: Pink/Light Blue
Car Radio Accessory Switched 12v+ Wire: Yellow/Black
Car Radio Ground Wire: Black/Light Green
Car Radio Illumination Wire: Light Blue/Red
Car Stereo Dimmer Wire: Blue/Red
Car Stereo Antenna Trigger Wire: Blue
Car Stereo Amplifier Location: Trunk
Car Audio Front Speakers Size: 5? x 7? Speakersir?t=modilife-20&l=as2&o=1&a=b00009uhre
Car Audio Front Speakers Location: Doors
Left Front Speaker Positive Wire (+): Orange/Light Green
Left Front Speaker Negative Wire (-): Light Blue/White
Right Front Speaker Positive Wire (+): White/Light Green
Right Front Speaker Negative Wire (-): Dark Green/Orange
Car Audio Rear Speakers Size: 6? x 9? Speakers[img src="" width="1" height="1" border="0" alt="">
Car Audio Rear Speakers Location: Rear Deck
Left Rear Speaker Positive Wire (+): Gray/Light Blue
Left Rear Speaker Negative Wire (-): Tan/Yellow
Right Rear Speaker Positive Wire (+): Orange/Red
Right Rear Speaker Negative Wire (-): Brown/Pink
Check the fuses

24851106-prgqozi4aluuon54ixeydqz4-5-7.gif 24851106-prgqozi4aluuon54ixeydqz4-5-0_0.jpg

Jul 20, 2014 | 1995 Lincoln Town Car

1 Answer

Testing an alternator

The short answer is no.
Most amp meters are not designed to carry all of the power the car needs like meters used before 1950.
A better choice is a volt meter.

Feb 12, 2014 | Cars & Trucks

1 Answer

I need to replace the alternator for my wife's 2003 Lexus RX300. Do I buy a 100 amp or a 130 amp alternator, and does it matter?

you need take old alternator with you to auto parts stores they can match up your alternator give you the correct AMP TYPE, your alternator amps is stamped on the out side alternator housing, the auto parts store can look up right amp alternator for your vechicle.when you say dont matter yes it does if you get wrong type alternator, your battery wont have good charge causing alternator fail early and battery fail early.

Feb 12, 2012 | 2003 Lexus RX 300

2 Answers

The charge light comes on and car tries to stop all dash lights start flickering.

sounds like you are going to need an alternator, and possible a battery. You need a digital volt meter (less than $15 at most home improvement stores) and check the voltage at the battery posts when the car is idling, it should be at least 14 volts but not more than 15 (and that should be briefly)-the battery should be at least 12.4 volts at the posts when the car has been sitting (overnight) or you might have to replace the battery too-honestly, your caddy is a killer on electrical system loads, so the alternator and battery should be replaced together, with the most heavy duty components you can get. I have a Lincoln (same boat, so to speak), and I replaced my 130 amp alternator with a 200 amp unit from DB Electrical (they are in Tennessee), and a new battery, 1000 amp @ 32 degrees, 850 @ 0 degrees, and that was 4 years ago. Still no problems, it really is necessary in these cars due to heavy electrical demands.

Jan 07, 2011 | 1992 Cadillac DeVille

2 Answers

How do you reset warning battery & charging system light on 2003 navigator after i have changed the alternator.

This light is not like a service light, you still have a problem, and it appears that the alternator was not the issue. I reccomend getting it diagnosed, but do look for grounding issues, and clean battery terminals.

Oct 10, 2010 | 2003 Lincoln Navigator

1 Answer

93 lincoln towncar, 66k miles, replaced starter (was bad) now after crank-up, approx 10 min driving time, anti-lock light comes on then the a/c read-out goes crazy and then it dies. Then it won't start,...

I'd check those fuses for voltage, when problem is ongoing. Those fuses are hot all the time, use a test lite. Did you check voltage drop on cables and wiring? Battery has a full charge and charging system is working correctly?
93 lincoln ignition switch-dovvtjxmslfisvkimjuhykjs-4-0.jpg

Mar 17, 2017 | Lincoln Town Car Cars & Trucks

Not finding what you are looking for?
2003 Lincoln Town Car Logo

493 people viewed this question

Ask a Question

Usually answered in minutes!

Top Lincoln Experts


Level 3 Expert

76164 Answers


Level 3 Expert

5522 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Are you a Lincoln Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides