Ford

Have Ford Questions? Ask a Mechanic for Answers ASAP

Ask an Expert,
Get an Answer ASAP!

Ford

alternator keeps burning up

Customer Question
alternator keeps burning up
Submitted: 8 years ago.Category: Ford
Ask Your Own Ford Question
Answered in 22 minutes by:
12/21/2009
Ford Mechanic: Dieseljunky2, Ford Mechanic replied 8 years ago
Dieseljunky2
Dieseljunky2, Ford Mechanic
Category: Ford
Satisfied Customers: 3,947
Experience: ASE Certified, Ford Certified, Cummins Certified, & 20+ years in field experience
Verified

Hello, has the small connector for the alternator been replaced? These connectors often cause alternator problems because the contacts inside them are so small. Also, have you checked the wiring for the small connector? THe following needs to be checked, make sure the orange and light blue wire has battery voltage with the small connector disconnected from the alternator. After you replace the small connector, start the truck and turn on everything that you can that is electrical. leave it on for about 4 or 5 minutes, then take your voltmeter and place one lead on the alternator battery cable post and the other lead on the battery post itself. The voltage should read less than 1 volt. If it reads more than 1 volt, the battery cable to the alternator is bad. This should get you fixed up. Thanks

 

 

Ask Your Own Ford Question
Customer reply replied 8 years ago
This would cause my batteries to go dead? and my gauges to freak and lights to dim while driving? But mostly my batteries to die hours after the truck is shut off?
Ford Mechanic: Dieseljunky2, Ford Mechanic replied 8 years ago
OK, so you are now saying that the batteries go dead in a few hours after the truck is shut off. Do the batteries go dead while driving, or it you use the truck during the day, and start it every few hours, it will not go dead?
Ask Your Own Ford Question
Customer reply replied 8 years ago
The truck has started and then died a few times, requiring a jump start. Usually there are no problems trough the coarse of a day. However on two occasions the truck has needed a jump with in 30 minutes of shuting it off
Ford Mechanic: Dieseljunky2, Ford Mechanic replied 8 years ago
How old are the batteries, and if they were replaced, what is the cold cranking amps of the batteries?
Ask Your Own Ford Question
Customer reply replied 8 years ago

The batteries are factory,so 5 years. when load tested they tested good. Motorcraft 750 cold cranking amps. This is my first time using this site, sorry for not being way more informative with initial question.

Ford Mechanic: Dieseljunky2, Ford Mechanic replied 8 years ago
If you have gotten 5 years out of factory diesel batteries, you were very lucky. I would be willing to think that the batteries are the problem. It is possible that the post on one of the bateries has cracked inside the battery case and vibration while driving causes the post to loose contact and spike voltage through the electrical system. This would account for the gauges and also the no start problem. If there was an electrical item that could drain 2 diesel batteries in 30 minutes, it would be on fire from the heat it would make. Also, the batteries are more than likely almost 7 years old, the 2004 trucks were buiolt in 2003 and the batteries were make before the trucks. You are on borrowed time for the batteries to start with. I would recommend replacing the batteries, and use 750 amp Motorcraft or 1000 amp in any other brand. Thanks
Ask Your Own Ford Question
Customer reply replied 8 years ago
So definitly change batteries. This should take alternator problem as well? Or should I just change that plug as well? Thank you for your patience.
Ford Mechanic: Dieseljunky2, Ford Mechanic replied 8 years ago
Change the batteries, and I would recommend replacing the small connector on the alternator as well. It will be cheap insurance. Having batteries this old, also will put stress on the alternator, which is probably the cause for the alternator burning out so quickly. Thanks
Dieseljunky2
Dieseljunky2, Ford Mechanic
Category: Ford
Satisfied Customers: 3,947
Experience: ASE Certified, Ford Certified, Cummins Certified, & 20+ years in field experience
Verified
Dieseljunky2 and 87 other Ford Specialists are ready to help you
Ask your own question now
Ask Dieseljunky2 Your Own Question
Dieseljunky2
Dieseljunky2
Dieseljunky2, Ford Mechanic
Category: Ford
Satisfied Customers: 3,947
3,947 Satisfied Customers
Experience: ASE Certified, Ford Certified, Cummins Certified, & 20+ years in field experience

Dieseljunky2 is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

AlvinC answered a question about my Ford truck that only someone with an in-depth knowledge of his subject would have known what was going on.

Rich DUSA

Because of your expertise, you armed me with enough ammunition to win the battle with the dealer. They are installing a fuel filter and fuel pump at no charge to me.

MollyUSA

I needed help with my car on Saturday morning....got a response in 5 minutes, and it was the perfect solution. Thanks again to your service.

Jason V.Kirkland, WA

I do know, after going though this with JustAnswer, that I can somewhat trust my mechanic but I will always contact you prior to going there.

BRNew Jersey

I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry.

Stephanie PElm City, NC

used your service this weekend with "Trecers" help. thank you ,thank you, thank you. replaced an A/C fan motor. Local Auto Zone had part. $15.00 "tracer" fee and $40.00 for parts, I saved several hundreds of dollers at a shop. i will recommend you and use you in the future.

David L.Richmond, TX

9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much.

PhilMarysville, CA

< Previous | Next >

Meet the Experts:

Ron

Ron

ASE Certified Technician

24,320 satisfied customers

23 years with Ford specializing in drivability and electrical and AC. Ford certs and ASE Certs

Chris (aka- Moose)

Chris (aka- Moose)

Technician

28,139 satisfied customers

16 years experience

John Mc

John Mc

Ford Technician

5,495 satisfied customers

19 years Ford Lincoln Mercury experience

Chuck

Chuck

ASE Certified Technician

1,685 satisfied customers

33 Years Experience,Ford Senior Master,ASE Master,L1 Advanced Engine Performance

Cam

Cam

Journeyman Automotive Technician

10 satisfied customers

GM Grand Master Technician 2007. 14 years Automotive experience.

Richard

Richard

ASE Certified Technician

1,524 satisfied customers

12 years at a Ford Lincoln/Mercury and Jaguar dealer as a technician and shop foreman.

Mike V.

Mike V.

Auto Service Technician

1,380 satisfied customers

25 years experience on all makes and models, Licensed NYS Inspector.

< Previous | Next >

Related Ford Questions
Good battery new alternator but not charging 2003 ford f150.
Good battery new alternator but not charging 2003 ford f150 … read more
TIM MOHR
TIM MOHR
SHOP OWNER
Master's Degree
8,037 satisfied customers
01 Ford escort 2.0 Installed reman Alternator,new battery.
01 Ford escort 2.0 Installed reman Alternator,new battery. Still not charging. Battery light stays on. @ idle 12.4 volts. What did I miss?… read more
Chris (aka- Moose)
Chris (aka- Moose)
Technician
Vocational, Technical or Trade School
28,139 satisfied customers
2001 f350 7.3, alternator quit charging, changed alternator
2001 f350 7.3, alternator quit charging, changed alternator and now charges for short time and voltage gradually drops, I've been a semi mechanic for 12 years and own my own shop, saying that.... I do… read more
APenland
APenland
Ford Senior Master Technician
Associate in Industrial Management
3,186 satisfied customers
I related the solenoid, the alternator, and the battery.
I related the solenoid, the alternator, and the battery. Interior light comes on. Nothing else. Will not start. … read more
Ron
Ron
ASE Certified Technician
Vocational, Technical or Trade Scho
24,320 satisfied customers
2002 f150 4.6. Replaced battery, alternator and solenoid on
2002 f150 4.6. Replaced battery, alternator and solenoid on fire wall. Something is draining the battery bad. … read more
Ron
Ron
ASE Certified Technician
Vocational, Technical or Trade Scho
24,320 satisfied customers
I have replaced the alternator and battery, now it will
I have replaced the alternator and battery, now it will start but shortly after the display in instrument cluster quits displaying the milage and then it stalls and wll not restart. I recharge battery… read more
Chris (aka- Moose)
Chris (aka- Moose)
Technician
Vocational, Technical or Trade School
28,139 satisfied customers
Once pulling tensioner and alternator bolts out alternator
once pulling tensioner and alternator bolts out alternator still wont come dont want to pry onit and crack housingwhats the best way to get it out 2013 ford f150 5.0 engine … read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
I have removed plug from alternator and it looks ok. the
i have removed plug from alternator and it looks ok. the connectors look fine but have not remove wires from harness. is this possible or will i damage plug?… read more
kalamykid
kalamykid
Pactor automotive
Vocational, Technical or Trade Scho
97 satisfied customers
My 1999 f350 ford pickup has burned up the alternator after
my 1999 f350 ford pickup has burned up the alternator after 2 years,should i look furter … read more
Ron
Ron
ASE Certified Technician
Vocational, Technical or Trade Scho
24,320 satisfied customers
2005 Ford Escape 3.0 alternator charging 19.7 on vehicle but
2005 Ford Escape 3.0 alternator charging 19.7 on vehicle but test good at 14.3 on tester … read more
Jaybird61
Jaybird61
Master Automotive Mechanic
2,223 satisfied customers
The alternator was just replaced and now about 150 miles
The alternator was just replaced and now about 150 miles later while going down the interstate the rpms started climbing and now the transmission will not go into gear … read more
eauto
eauto
self employed
High School or GED
74 satisfied customers
I got powered to the alternator in big wire aND the yellow
I got powered to the alternator in big wire aND the yellow wire but she tg car is running nou power coming out of the gray wire… read more
Steve W
Steve W
Line Technician
Vocational, Technical or Trade Scho
1,968 satisfied customers
Battery drain! New Alternator, and battery... Car dies
Battery drain! New Alternator, and battery... Car dies randomly, or gages go crazy wanting to shut off but don't. Battery has drained a few times now but I have wires all over the place .attached to a… read more
Gabriel Grey
Gabriel Grey
Master Service Technician
Associates
366 satisfied customers
Put a new alternator on and it won't charge still. 95
Put a new alternator on and it won't charge still JA: What is the model/year of your Ford? Customer: 95 Mustang GT 5.0 JA: Are you fixing your Mustang GT yourself? What have you tried so far? Customer… read more
David Craig
David Craig
OWNER/MECHANIC
Associates
4,370 satisfied customers
Just replaced the alternator and battery in my 1999 Ford
Just replaced the alternator and battery in my 1999 Ford Windstar. The engine turns over, but never ignites. Any ideas? ' … read more
Mechanic01
Mechanic01
1,641 satisfied customers
I had the alternator wire to the battery melt at its
I had the alternator wire to the battery melt at its connection to the alternator I bought a new alternator but want to replace the wire also … read more
Gabriel Grey
Gabriel Grey
Master Service Technician
Associates
366 satisfied customers
Changed out alternator, replaced it with A KNOWN FUNCTIONG
changed out alternator, replaced it with A KNOWN FUNCTIONG alt and it now is only putting out 12.4 volts testing results says bad volt regulator. whats could be taking out volt regulators … read more
Ron
Ron
ASE Certified Technician
Vocational, Technical or Trade Scho
24,320 satisfied customers
Alternator died replaced it but still won't start with loud
Alternator died replaced it but still won't start with loud fast clicking when I turn the ignition … read more
eauto
eauto
self employed
High School or GED
74 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x