Cadillac

Cadillac repair questions? Ask a mechanic for answers ASAP

Ask an Expert,
Get an Answer ASAP!

2003 Cadillac escalade ESV: Recently noticed some voltage…

Customer Question
2003 Cadillac escalade ESV...

2003 Cadillac escalade ESV: Recently noticed some voltage dips with the car (cutting out/Dying). I did the normal tests. Checked the battery voltage when car was off 12.2VDC, then when running 11.6Vdc. Pulled the negative pole from the battery and car died. I ran down and bought a new alternator and slapped that baby in and bada boom badda bing! Nothing! Same situation as above. I pulled the lead off the back of the alternator to measure voltage directly off the post and go 0VDC. Nothing at all. Need help at this point. There is another set of (what looks to be) control wires going into the alteranator. Im not sure if the alternator is dumb or does it get info from a charge controller. If so, where are the fuses or controller

Mechanic's Assistant: Does the battery look like it's leaking? And does it have a strong smell -- like sulfur?

No.

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

2003 Cadillac escalade ESV: Recently noticed some voltage dips with the car (cutting out/Dying). I did the normal tests. Checked the battery voltage when car was off 12.2VDC, then when running 11.6Vdc. Pulled the negative pole from the battery and car died. I ran down and bought a new alternator and slapped that baby in and bada boom badda bing! Nothing! Same situation as above. I pulled the lead off the back of the alternator to measure voltage directly off the post and go 0VDC. Nothing at all.

Submitted: 8 months ago.Category: Cadillac
Show More
Show Less
Ask Your Own Cadillac Question
Answered in 7 minutes by:
12/20/2017
Cadillac Mechanic: Dan, Technician replied 8 months ago
Dan
Dan, Technician
Category: Cadillac
Satisfied Customers: 26,063
Experience: Independent Shop Experience, 2 Year Automotive Diploma, & Access to Information Database
Verified

Hello, my name is ***** ***** I'm here to help get your problem solved.

Ask Your Own Cadillac Question
Cadillac Mechanic: Dan, Technician replied 8 months ago

Check to see if the large red wire going to alternator shows battery voltage with vehicle off, let me know. Thanks.

Ask Your Own Cadillac Question
Customer reply replied 8 months ago
It does. It has the same voltage as the battery.
Cadillac Mechanic: Dan, Technician replied 8 months ago

Check the voltage on the Brown wire going to the alternator connector pin B (alternator terminal L) with the engine running and the alternator unplugged. The voltage should be near 10 volts. Plug the alternator in with the Digital Volt Ohmmeter (DVOM) backprobed into the Brown wire and the voltage should be less than 1 volt with key on, engine off. Start the engine with the DVOM still backprobed into the Brown wire at the alternator. The voltage should switch from under 1 volt to near 10 volts. Let me know, thanks.

Ask Your Own Cadillac Question
Customer reply replied 8 months ago
Ill have to check in the morning. I had to go back to work. Ill let you know.
Cadillac Mechanic: Dan, Technician replied 8 months ago

Sounds good, I'll talk to you then. Thanks.

Ask Your Own Cadillac Question
Customer reply replied 8 months ago
Checked voltage directly off the brown pin with VOM. Without key in ignition=1vdc, with key flipped into power mode =10vdc, with motor running=8vdc
I inserted a small wire into the brown pin receptical, plugged the connector into the alternator.
With car off=0vdc
With ignition in power position=1.3vdc
With motor running=1.3vdc.
Cadillac Mechanic: Dan, Technician replied 8 months ago

Sounds like a problem with the alternator, I would recommend trying a different manufacture. Let me know if you have questions. Thanks.

Ask Your Own Cadillac Question
Customer reply replied 8 months ago
Getting a new one now.
Cadillac Mechanic: Dan, Technician replied 8 months ago

Keep me updated, thanks .

Ask Your Own Cadillac Question
Customer reply replied 8 months ago
Went down and got my second new alternator and worked fine. They gave me a re-furbished Remy the first time. I have read on a few different threads about the brand of alternator not outputting DC, When you suggested that might be the case, I went down and swapped it out with a AC Delco. It worked like a charm 14.5Vdc when running. Thank you and Merry Christmas.
Cadillac Mechanic: Dan, Technician replied 8 months ago

Good to hear, I'm happy you are up and running again. Thanks for update and have Merry Christmas.

Ask Your Own Cadillac Question
Cadillac Mechanic: Dan, Technician replied 8 months ago

Please do not forget to rate answer, thanks.

Ask Your Own Cadillac Question
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with a cadillac mechanicLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask Dan Your Own Question
Dan
Dan
Dan, Technician
Category: Cadillac
Satisfied Customers: 26,063
26,063 Satisfied Customers
Experience: Independent Shop Experience, 2 Year Automotive Diploma, & Access to Information Database

Dan 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:

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

He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here.

DianeDallas, TX

< Previous | Next >

Meet the Experts:

Jerry Newton

Jerry Newton

Cadillac Technician

1,738 satisfied customers

ASE Master Technician, L1, Master GM Technician. Over 20 years of bumper to bumper GM experience.

Dave Nova

Dave Nova

Cadillac Technician

1,522 satisfied customers

ASE Master Certification. GM World Class Certification

Gm Tech (Cam)

Gm Tech (Cam)

Cadillac Mechanic

1,090 satisfied customers

GM Grand Master Technician 2007. 14 years experience.

John

John

ASE Certified Technician

941 satisfied customers

ASE CERTIFICATIONS A1-A8 & L1 / 40 YEARS AUTOMOTIVE EXPERIENCE

Chris (aka- Moose)

Chris (aka- Moose)

Cadillac Technician

811 satisfied customers

16 years of experience

George H.

George H.

ASE Certified Technician

783 satisfied customers

ASE Master Tech 15+ Years

Don - Mo Lurch

Don - Mo Lurch

Cadillac Technician

705 satisfied customers

GM, Cadillac Cert., Heavy Line Mech, Race Shop Owner, Mobile Electronics.

< Previous | Next >

Related Cadillac Questions
I have brand new rebuilt calipers (second set)on the front
I have brand new rebuilt calipers (second set)on the front brakes and I am still getting brake drag I am going to go test to see if it is my master cylinder. I also replace brake hoses on the front. I… read more
Expert-Repair
Expert-Repair
Owner Kingsland Auto & Marine Services
Vocational, Technical or Trade Scho
11 satisfied customers
Jumped it this morning after light were left on. only half
jumped it this morning after light were left on. only half the dashboard work, ac wont get cold, window dont work, and controls on steering wheel dont work. … read more
rpmdiag
rpmdiag
High school
7,883 satisfied customers
The battery keeps dying after about a day. I have taken it
The battery keeps dying after about a day. I have taken it to a mechanic and an electrician and no one can find the problem. They also say the battery and alternator are good. Please help? … read more
sprinkles08
sprinkles08
Technician
High School or GED
11 satisfied customers
My 2005 Escalade ESV Platinum Service Stabilizer lite has
My 2005 Escalade ESV Platinum Service Stabilizer lite has come on a couple times, not currently on.. I'm told the stabilizer needs replacement at a cost of $1,500. Should this be necessary, and what a… read more
Expert-Repair
Expert-Repair
Owner Kingsland Auto & Marine Services
Vocational, Technical or Trade Scho
11 satisfied customers
The battery light came on last night, This morning it was
This morning it was still on i drove all the way to work this morning and all the lights came on, on the dash. The truck remained running but when i turned it off it would not turn back on, i left it alone for a while when i turned it back on it started but the lights came back on and it jerked hard when i shifted gears … read more
Ron Z.
Ron Z.
Vocational, Technical or Trade Scho
2 satisfied customers
Passenger window wont work at all, it is in the down
passenger window wont work at all, it is in the down position now and would like to fix it myself … read more
Don - Mo Lurch
Don - Mo Lurch
Cadillac Technician
Vocational, Technical or Trade Scho
705 satisfied customers
2007 Escalade ESV with A/C front fan that still blows at
2007 Escalade ESV with A/C front fan that still blows at very low speed after ignition is off. Is Blower control module at fault. This ran down my new AC Delco battery to the point it is almost draine… read more
BOBBYSS
BOBBYSS
TECHNICIAN/ADVISOR
Associate Degree
8,343 satisfied customers
My car was towed by a small tow truck from the back with the
My car was towed by a small tow truck from the back with the front and hanging really low to the ground I went to pick the car up and it won't start and it also states service antitheft system … read more
Dan
Dan
Dealership Technician
Associate Degree
2,145 satisfied customers
My 2012 Cadillac escalade just showed the voltage where the
My 2012 Cadillac escalade just showed the voltage where the odometer is at and that is the first time I have seen it there. So I am wonder if the battery is going bad or something… read more
Chris (aka- Moose)
Chris (aka- Moose)
Cadillac Technician
Vocational, Technical or Trade School
811 satisfied customers
Cadillac Escalade ESV: I've noticed the headlights on my Escalade
I've noticed the headlights on my Escalade dimming from time to time and now I've noticed that when I give the engine a lot of throttle I can watch the voltage meter go from 14 down to 10 and I can se… read more
Aaron
Aaron
ASE Certified Master Technician
High School or GED
26 satisfied customers
Cadillac Escalade ESV: Hi, I have 2011 Escalade ESV, the battery
Hi, I have 2011 Escalade ESV, the battery dies after 10-15 min. having radio on(I can have my radio on for hours in my other cars without battery going dead) but anyway took it to the dealer they chan… read more
Vladgmru
Vladgmru
Automotive Electrician
Vocational, Technical or Trade Scho
1,586 satisfied customers
I have an 2008 Cadillac Escalade and the battery will drain
I have an 2008 Cadillac Escalade and the battery will drain over night. I just replaced the battery and had the alternator tested.… read more
BOBBYSS
BOBBYSS
TECHNICIAN/ADVISOR
Associate Degree
8,343 satisfied customers
Cadillac Escalade ESV: Hi John, Im having a problem w/my 2003
Hi John, I'm having a problem w/my 2003 Cadillac Escalade ESV. For some reason the battery is not keeping a charge. Battery is less than a year, replaced the alternator and still needs a jump after si… read more
BOBBYSS
BOBBYSS
TECHNICIAN/ADVISOR
Associate Degree
8,343 satisfied customers
Cadillac Escalade ESV: 2003 cadillac escalade esv. Battery
2003 cadillac escalade esv. Battery keeps dieing over night. Made sure everything was turned off no lights nothing is left on. I took it to my garage and parked it and kept going back out to check it,… read more
Chris (aka- Moose)
Chris (aka- Moose)
Cadillac Technician
Vocational, Technical or Trade School
811 satisfied customers
escalade ESV: starting problems..intermittent...12 volt..relay problem
I have an 07 escalade ESV that recently has had starting problems. it seems intermittent. I am not sure if it is a wiring problem (like the starter solenoid wire or hot 12 volt), a relay problem, or a… read more
Gm Tech (Cam)
Gm Tech (Cam)
Cadillac Mechanic
Vocational, Technical or Trade Scho
1,090 satisfied customers
2006 Cadillac Escalade: navigation..CD changer..a dead battery
I have a 2006 Cadillac Escalade ESV. It has the touch screen navigation and 6 disc CD changer. Recently the vehicle was discovered to have a dead battery in the morning attempting to go to work. After… read more
Gm Tech (Cam)
Gm Tech (Cam)
Cadillac Mechanic
Vocational, Technical or Trade Scho
1,090 satisfied customers
2007 Escalade: rear license plate light..blown fuses..bulbs
2007 Escalade - rear license plate light will not come on. Have found two blown fuses and replaced and have also replaced both bulbs. Any suggestions?… read more
Dave Nova
Dave Nova
Cadillac Technician
Associate Degree
1,522 satisfied customers
2005 Escalade esv: disconnected the alternator..amp..relays
Question for you if you do not mind. I have a 2005 Escalade esv plat. The battery goes completly dead over night I have disconnected the alternator and I have tested with a amp meter with all the fuse… read more
BOBBYSS
BOBBYSS
TECHNICIAN/ADVISOR
Associate Degree
8,343 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