Chevy

Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP

Ask an Expert,
Get an Answer ASAP!

Not charging. 2004 gmc 2500hd. New battery new alt. Runs…

Customer Question
Not charging Mechanic's Assistant:...

Not charging

Mechanic's Assistant: What is the model/year of your Chevy?

2004 gmc 2500hd

Mechanic's Assistant: Are you fixing your vehicle yourself? What have you tried so far?

New battery new alt

Mechanic's Assistant: Have you tested the battery with a voltmeter? And can you see if it's leaking or not?

No

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

Runs until the battery is dead then dies

Submitted: 7 months ago.Category: Chevy
Show More
Show Less
Ask Your Own Chevy Question
Answered in 2 minutes by:
12/8/2017
Chevy Mechanic: AMEDEE, CHEVY TECHNICIAN replied 7 months ago
AMEDEE
AMEDEE, CHEVY TECHNICIAN
Category: Chevy
Satisfied Customers: 28,112
Experience: ASE certified tech ADVANCED LEVEL SPECIALIST. Wisconsin certified emissions state inspector
Verified

Hello and welcome!

Thank you for your question. My name isCustomerand I will be happy to assist you today. I am reviewing the details now.

Ask Your Own Chevy Question
Chevy Mechanic: AMEDEE, CHEVY TECHNICIAN replied 7 months ago

May I get your engine size please?

Ask Your Own Chevy Question
Customer reply replied 7 months ago
5.7
Chevy Mechanic: AMEDEE, CHEVY TECHNICIAN replied 7 months ago

Thank you!

One moment please

Ask Your Own Chevy Question
Chevy Mechanic: AMEDEE, CHEVY TECHNICIAN replied 7 months ago

Would it be a 6.0 liter by chance?

Do you happen to have the VIN?

Ask Your Own Chevy Question
Customer reply replied 7 months ago
sorry yes it is
Chevy Mechanic: AMEDEE, CHEVY TECHNICIAN replied 7 months ago

Thank you.

One moment please

Ask Your Own Chevy Question
Chevy Mechanic: AMEDEE, CHEVY TECHNICIAN replied 7 months ago

Ok, have you checked the inputs to the back of the cluster yet?

Ask Your Own Chevy Question
Customer reply replied 7 months ago
what cluster
Chevy Mechanic: AMEDEE, CHEVY TECHNICIAN replied 7 months ago

Sorry, alternator..

Ask Your Own Chevy Question
Customer reply replied 7 months ago
had auto zone check the alt. They said it wasn't charging. installed a new one, same problem.
Chevy Mechanic: AMEDEE, CHEVY TECHNICIAN replied 7 months ago

Thank you for that information.

First, the BIG wire going to the back of the alternator needs to have battery voltage on it. If not, this could simply just be a blown fuse.

Also, with the plug in connector disconnected from the alternator and key turned on, the brown wire needs to have voltage on it as well to turn the alternator "on" with the engine running. When connected, start the engine with the DVOM backprobed into the Brown wire at the alternator. The voltage should switch from under 1 volt to near 10 volts.

Ask Your Own Chevy Question
Customer reply replied 7 months ago
Blown alternator fuse?
Chevy Mechanic: AMEDEE, CHEVY TECHNICIAN replied 7 months ago

Fusible link

Ask Your Own Chevy Question
Customer reply replied 7 months ago
Location?
Chevy Mechanic: AMEDEE, CHEVY TECHNICIAN replied 7 months ago

Between the underhood junction block and alternator in line (in the big wire that goes to the back of the alternator)

Keep in mind this is a "starting point". My goal is to give you the best experience possible! I hope I have earned a 5-star rating! Please remember to rate my service by selecting the 5 stars at the top of the screen before you leave today. If you need more assistance, please use the reply box and let me know.

Ask Your Own Chevy Question
Chevy Mechanic: AMEDEE, CHEVY TECHNICIAN replied 7 months ago

Do you have any further questions sir?

Ask Your Own Chevy Question
Chevy Mechanic: AMEDEE, CHEVY TECHNICIAN replied 7 months ago

Hello there!

I am just checking in to see how things are going and to see if you need any further assistance?

If so, please let me know as I will be happy to help.

Best Regards,

Customer/p>

Ask Your Own Chevy Question
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with a chevy mechanicLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask AMEDEE Your Own Question
AMEDEE
AMEDEE
AMEDEE, CHEVY TECHNICIAN
Category: Chevy
Satisfied Customers: 28,112
28,112 Satisfied Customers
Experience: ASE certified tech ADVANCED LEVEL SPECIALIST. Wisconsin certified emissions state inspector

AMEDEE 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:

I was having a terrible problem with the wheel bearings on my 98 Chevy Cavalier and I suspect that using this website saved me plenty of time and money.

Todd LRochester NY

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

< Previous | Next >

Meet the Experts:

GM Tech (Cam)

GM Tech (Cam)

Chevy Technician

15,659 satisfied customers

GM Grand Master Technician 2007. 14 years experience.

Gary

Gary

Chevy Technician

9,621 satisfied customers

15 years GM master tech

Tim&#039;s Auto Repair

Tim's Auto Repair

mechanic

8,884 satisfied customers

Have owned a repair shop for 25 yrs.

Dave Nova

Dave Nova

Chevrolet Technician

7,092 satisfied customers

ASE Master Certification. GM World Class Certification

John

John

Master A.S.E Automotive technician

4,071 satisfied customers

A.S.E MasterTechnician A1-A8 w/L1,38 years experience General Motors Master Technician

Don - Mo Lurch

Don - Mo Lurch

Auto Mech / Electronics

2,948 satisfied customers

Chevrolet Cert., Heavy Line Mech, Race Shop Owner, Mobile Electronics.

Ron Z.

Ron Z.

- Chevy Tech -

2,822 satisfied customers

18+yrs experience. State Inspector and Chevy Diagnostics

< Previous | Next >

Related Chevy Questions
2004 gmc: duramax 2500 hd turbo diesel..reading almost 12 volts
i have a 2004 gmc 6.6l duramax 2500hd turbo diesel.will crank for about two seconds and goes dead in the key? put my mac mentor on it and found code P0335b,crank position sensor A ckt malf.checked pow… read more
Dodge expert
Dodge expert
ASE MASTER TECH, REPAIR FACILITY OWNER
High School or GED
3,636 satisfied customers
85 Chevy blazer: headlights..same problem..heater fan..12 volts
I have a 85 Chevy blazer with a 5.7 and the alternator will charge if the headlights are off, turn the on and voltage drops.I've put 3 alternators in it and the same problem. 2 new batteries and if I … read more
zzdaryl
zzdaryl
Lead Auto Tech
Some college and advanced training
4 satisfied customers
gmc: My 05..2500 hd 6.6 duramax just stopped running..batteries
My 05 GMC 2500HD 6.6 Duramax just stopped running and now won't restart. I charged the batteries and they read 12.2 and 12.4. Someone said the primer might be the problem. How do I trouble shoot the p… read more
GM Tech (Cam)
GM Tech (Cam)
Chevy Technician
Vocational, Technical or Trade Scho
15,659 satisfied customers
3.4: in van..Charging system only showing battery volts.
Gm 3.4 in van. Charging system only showing battery volts. This is the third alternator, 2 new alternators in two weeks. First one replaced because of charging issues, intermittent. Second was replace… read more
Tim&#039;s Auto Repair
Tim's Auto Repair
mechanic
High School or GED
8,884 satisfied customers
1991 Chevy Truck: V8..Four Wheel Drive Automatic 168000 miles..jumped
Electrical problem 1991 Chevy Truck V8 Four Wheel Drive Automatic 168000 miles on truck 6500 on new engine 91 chev k2500 5.7 350. battery dead jumped it let run for about 45 min. got to work shut off … read more
Tim&#039;s Auto Repair
Tim's Auto Repair
mechanic
High School or GED
8,884 satisfied customers
97 Lumina: V6..new battery started the car a couple times..went dead
Hello I have a '97 Lumina, 3.1 V6. The battery wouldn't charge up so I replaced it. The new battery started the car a couple times, then it too went dead. Could this be anything but a bad alternator? … read more
Gary
Gary
Chevy Technician
Vocational, Technical or Trade Scho
9,621 satisfied customers
99 chevy malibu: car off its completely dead again..Brand new battery
I have a 99 chev malibu that works when I chargs the battery but the second I shut the car off it's completely dead again. Brand new battery though.… read more
Gary
Gary
Chevy Technician
Vocational, Technical or Trade Scho
9,621 satisfied customers
s10 blazer: v6..driving down the road running fine and i..new battery
ok i got a s10 blazer 96 with a v6 4.3 motor instaled i was driving down the road running fine and i just stopped like a light switch shuting off and battery dead so got a jump start it ran 2 miles th… read more
frank
frank
Vocational, Technical or Trade Scho
1,892 satisfied customers
Deluxe: a charging system problem since i..progressively worse...it
i have a 1978 c/10 custom deluxe p/u with a 359 c.i. engine. i have been having a charging system problem since i bought the truck, but has been getting progressively worse. it was charging intermedia… read more
John Hicks
John Hicks
Business Owner
Vocational, Technical or Trade Scho
164 satisfied customers
2006 2500 hd silverado w / 6.6 duramax ...battery light has come
I have a 2006 2500hd silverado w/ 6.6 Duramax. The battery light has come on and I get message "Battery not charging". I have replace alt. and the problem persists. I have read DTC codes P0621 & P0622… read more
frank
frank
Vocational, Technical or Trade Scho
1,892 satisfied customers
1994 chevy astro: volts..a 1 1/2 mile ride the battery is..goes dead
I have a 1994 chev astro and have a volts problem i replaced the battery and alt and volts dont go up to run lights for a 1 1/2 mile ride the battery is goes dead… read more
richardndawnc
richardndawnc
Auto Repair Shop Owner
Associate Degree
132 satisfied customers
2003 GMC: hd 6.6 Turbo runs down batteries..alternator..volts..gage
2003 GMC 2500HD 6.6 Turbo runs down batteries in 2 hours time. Has new batteries and alternator. Will not charge above 11.75 volts on gage. Cables arc on ground side when connecting.… read more
GM Master Tech 01
GM Master Tech 01
GM certified diesel master tech
226 satisfied customers
2003 silverado, new battery, new alternator..my batt dies overnight
2003 silverado, new battery, new alternator, all power draining devices are turned off. since last week my batt dies overnight. the alt. will charge the batt, but when left for a few hours the batt is… read more
John
John
Master A.S.E Automotive technician
2 YEARS COLLEGE
4,071 satisfied customers
chevy trailblazer: start my..lights went..console..My car started.
It all started when I went to start my chevy trailblazer and I turned the key and the car struggled to start. The front consol lights were off but once I tried it again all the lights went on on the c… read more
supermechanic
supermechanic
Service consultant
Vocational, Technical or Trade Scho
10 satisfied customers
2004 Gmc: jump start & replacing the battery..climate..fuses..hood
My battery died and after giving the truck a jump start & replacing the battery the climate controll seems to have no power. I have checked all the fuses in the cab & under the hood, all ok. The truck… read more
Roadside Jerry
Roadside Jerry
Auto Expert on Just Answer
Vocational, Technical or Trade Scho
2,659 satisfied customers
94 chevy tahoe: runs fine..it off a min or two and it just cranks
94 chevy tahoe new everything!! battery{its new} dead put a charge in it it starts and runs fine no lights on .shut it off a min or two and it just cranks. let it sit over night battery dead no lights… read more
frank
frank
Vocational, Technical or Trade Scho
1,892 satisfied customers
Where is the speed sensor located on a 2004 GMC 2500HD ...
Where is the speed sensor located on a 2004 GMC 2500HD crew cab 4x4? I have an erratic speedometer with it locking up, when I turn the ignition of it drops 10 miles an hour and I have to keep doing th… read more
Eric
Eric
Retired
N/A
14,436 satisfied customers
99 GMC: The message center battery light keeps coming on..steady
I have a 99 GMC Sierra with a 5.3. The message center battery light keep's coming on. The Battery is good, and the Alt. is putting out a steady 14.2-14.3 Voltage. The light does not stay on, But comes… read more
autodoc_2000
autodoc_2000
Automotive Technician/Asst Service Manag
Vocational, Technical or Trade Scho
5 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