Subaru

Have Subaru Questions? Ask a Subaru Mechanic and Get Answers ASAP

Ask an Expert,
Get an Answer ASAP!

Subaru

2007 Subaru Forester having to be jumped off on a regular

Customer Question
basis. New battery, new alternator...
2007 Subaru Forester having to be jumped off on a regular basis. New battery, new alternator, and new starter
Submitted: 2 years ago.Category: Subaru
Show More
Show Less
Ask Your Own Subaru Question
Answered in 7 minutes by:
10/5/2015
Subaru Mechanic: Jerry, Master Mechanic replied 2 years ago
Jerry
Jerry, Master Mechanic
Category: Subaru
Satisfied Customers: 17,221
Experience: ASE Master tech, 30 years experience
Verified

Hello and thank you for visiting the site. My name is ***** ***** I will be happy to assist you today.

As long as the alternator is charging the battery when the engine is running. You will want to check for a current draw. Normally that is done by disconnecting the negative battery cable and hooking up an amp meter in series with the circuit.

…..

Also can be done with a 12 volt test light. You just go from the battery terminal to the cable end, (disconnected) and see what the draw is or if the light comes on.

….

The recommendation for maximum parasitic drain is around 30 mA (0.030 amp). A typical drain today actually falls into the 7-12 mA range, even though some vehicles do approach the maximum. Multiply the drain (in amps) by the time (in hours) the battery sits without being recharged. The result is the amount of AH consumed by the parasitic drain. The actual drain may be small, but over time the battery grows steadily weaker.

……

If so, then you will want to start pulling fuses one at a time until the light goes out, (or meter goes down) and that will be the circuit in which the draw is in. If no fuses being pulled cause it to drop, then unplug the alternator then the starter. They could do it but it's rare.

Just remember to keep the doors closed, (or dome light disabled) and the hood light unplugged,

.

Please don’t forget to rate the answer, **** THAT IS THE ONLY WAY I GET PAID **** if you need any more on it, I will be here.

.

Thanks

.

Ask Your Own Subaru Question
Customer reply replied 2 years ago
Had it to choke up on me while driving other day and check engine light came on... Barely made it.... Once I got back on road it gave me no problems. Gave code P0042.... Since this happend I havent had to jump it off, but have noticed headlight/park light out on passenger side
Subaru Mechanic: Jerry, Master Mechanic replied 2 years ago

Normally we get paid for the original answer(s) before any follow ups, but that wouldn't have any bearing on the battery state of charge. May be just a coincidence that it hasn't had to be jumped.

.

I do not have access to your email address,

I can put the instructions for the test for the trouble code in a PDF file, (it is rather large) and send it to your email address for as little as allowed.

.

You will just have to accept the additional service offer and ENTER your email address in the “ENTER CONTACT INFO” section so that I can see it, Thanks

Ask Your Own Subaru Question
Customer reply replied 2 years ago
I am sorry for the delay. I am on night shift and have not had a chance to try anything.
Subaru Mechanic: Jerry, Master Mechanic replied 2 years ago

I see, thanks. It does just sound like the battery has a draw on it. Goes dead after not driving for a few days or so?

Ask Your Own Subaru Question
Customer reply replied 2 years ago
Actually went dead overnight... Hopefully can try to do what you told me today
Subaru Mechanic: Jerry, Master Mechanic replied 2 years ago

Thanks and please come again, anytime.

Please don’t forget to rate the answer in a positive way, . EVEN IF YOU HAVE A SUBSCRIPTION ****THAT IS THE ONLY WAY I GET PAID ****

Ask Your Own Subaru Question
Ask Jerry Your Own Question
Jerry
Jerry
Jerry, Master Mechanic
Category: Subaru
Satisfied Customers: 17,221
17,221 Satisfied Customers
Experience: ASE Master tech, 30 years experience

Jerry 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 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

Lurch. Thank you very much. I had real doubts about this website but your promptness of response, quick followup and to the point answer with picture was incredible.

CharlesWalnut Creek, CA

As a single woman, I really appreciate an excellent and affordable opinion.
Thank you Geordie, I will not hesitate to contact justanswer in the future!

SueCharleston, WV

Another great insight to what may be the problem. I will have my mechanic take a look at it tomorrow. Thanks again, Frank...you do indeed know your stuff.

JimCastleberry, FL

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

< Previous | Next >

Meet the Experts:

Kevin C.

Kevin C.

Subaru Master Tech.

1,727 satisfied customers

34 years of Subaru service experience, ASE Master Technician.

George H.

George H.

Subaru Certified Technician

1,330 satisfied customers

ASE Master Tech 15 + Years

Tim Mohr

Tim Mohr

ASE MASTER TECH

409 satisfied customers

30 YRS EXPERIENCE, FOREIGN AND DOMESTIC, GAS AND DEISEL

Matt

Matt

Engineer

360 satisfied customers

Mechanical Engineer with 20 years experience in the auto industry, 8 yrs in formula 1 engine testing

Chris(aka-Moose)

Chris(aka-Moose)

Subaru Technician

289 satisfied customers

16 years of experience

Ron Z.

Ron Z.

- Subaru Tech -

239 satisfied customers

18+yrs experience. State Inspector and Subaru Diagnostics

Don - Mo Lurch

Don - Mo Lurch

Subaru Mechanic

190 satisfied customers

Heavy Line Mech, Race Shop Owner, Mobile Electronics.

< Previous | Next >

Related Subaru Questions
Put in new headlights in 2010 legacy and they are very dim.
put in new headlights in 2010 legacy and they are very dim … read more
Mechanic01
Mechanic01
1,703 satisfied customers
As I'm driving down the road my headlight would start
As I'm driving down the road my headlight would start flashing on and off, on dash the battery and altenater light would flash with the headlights,usually as I'm slowing down, both battery and altenat… read more
kalamykid
kalamykid
Pactor automotive
Vocational, Technical or Trade Scho
97 satisfied customers
I'm trying to replace the passenger side headlight socket on
I'm trying to replace the passenger side headlight socket on my 05 outback. I can't figure out which wire is the ground wire. … read more
Adam Legler
Adam Legler
Service Advisor, Master Technician
21 satisfied customers
My low beam headlights both stopped working. High beam and
My low beam headlights both stopped working. High beam and fog lights are ok … read more
baddad1
baddad1
technician
High School or GED
5 satisfied customers
My headlights don't work!! only park and high beams. Whlop.
my headlights don't work!! only park and high beams. Whlop … read more
trung do
trung do
CERTIFICATE OF ACHIEVEMENT
99 satisfied customers
My 2009 Legacy Outback has very poorly aimed headlights. I
My 2009 Legacy Outback has very poorly aimed headlights. I don't think the bulbs are dim (but I could be wrong), but the headlights are just pointed the wrong directions...not at the road. I've adjust… read more
Mechanic01
Mechanic01
1,703 satisfied customers
Replaced headlight bulb wot working on low beam checked fuse
replaced headlight bulb wot working on low beam checked fuse its ok … read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
If I replace headlight bulb this time will be third time and
If I replace headlight bulb this time will be third time and my fog lights are out the only light working are high beams … read more
camerontech
camerontech
20 year experience diagnostic technician
class a
559 satisfied customers
Can I replace LED headlights on a 2017 impresa ltd with hid
can I replace LED headlights on a 2017 impresa ltd with hid headlights … read more
Gabriel Grey
Gabriel Grey
Master Service Technician
Associates
372 satisfied customers
I have a 2011 Subaru Outback. Both low beam headlights went
Hello. I have a 2011 Subaru Outback. Both low beam headlights went out at same time. Replaced left bulb. Still not working. Fuses for R and L headlight in engine compartment are both ok. Any thoughts?… read more
tamaz22
tamaz22
60 satisfied customers
When we have locked up our car, the headlights are not going
When we have locked up our car, the headlights are not going off. … read more
baddad1
baddad1
technician
High School or GED
5 satisfied customers
Placed battery and horn blares. Brand new battery. 2012
tried replacing the battery because the original was weak … read more
Daniel Lee
Daniel Lee
Lead Automotive Technician
Automotive Technology
32 satisfied customers
Unplugged air intake for headlight bulb replacement, once
Unplugged air intake for headlight bulb replacement, once all back together and plugged in, engine cranks but won't fire. Cranks at normal speed.… read more
Don - Mo Lurch
Don - Mo Lurch
Subaru Mechanic
Vocational, Technical or Trade Scho
190 satisfied customers
New alternator. New battery. No parasitic drain. Battery
New alternator. New battery. No parasitic drain. Battery voltage slowly decreasing while driving until eventually the car dies with a dead battery … read more
Mechanic01
Mechanic01
1,703 satisfied customers
2001 Forester. Headlight bulb assembly melted, replaced
2001 Forester. Headlight bulb assembly melted, replaced connector. Head lights worked, high beam/low beam option lost. High beam light was on, but dim. A few months later, speedometer is not lit, and … read more
Mechanic01
Mechanic01
1,703 satisfied customers
2012 outback drivers headlight horizontal adjustment. Can't
2012 outback drivers headlight horizontal adjustment … read more
Mechanic01
Mechanic01
1,703 satisfied customers
I need to replace the headlight assembly on 1994 subaru
i need to replace the headlight assembly on 1994 subaru legasy … read more
Tim Mohr
Tim Mohr
ASE MASTER TECH
Master's Degree
409 satisfied customers
I'm having weird electrical problems. Headlights stopped
I'm having weird electrical problems. Headlights stopped working. Abs light came on. Radio stopped. Battery light on. Brake light on. Speedometer stopped....etc. I replaced the alternator then recentl… read more
baddad1
baddad1
technician
High School or GED
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