Mitsubishi

Mitsubishi Repair Problems? Ask a Mechanic for Answers ASAP

Ask an Expert,
Get an Answer ASAP!

Mitsubishi

I have 2005 Mitsubishi eclipse that died when driving. The

Customer Question
battery light came on before...
I have 2005 Mitsubishi eclipse that died when driving. The battery light came on before this happened. jumped car and checked charging was not so i removed alternator 7.5 fuse thinking it was blown. when i removed fuse chrging jumped way up to almost 18 volts so i assume alternator good. But why would charging go up if fuse removed I thought fuse supplied power to alternator
Submitted: 1 year ago.Category: Mitsubishi
Show More
Show Less
Ask Your Own Mitsubishi Question
Answered in 11 minutes by:
12/6/2015
Mitsubishi Mechanic: Doug, ASE Certified Technician replied 1 year ago
Doug
Doug, ASE Certified Technician
Category: Mitsubishi
Satisfied Customers: 8,623
Experience: Mitsubishi employed and Factory trained ASE certified technician
Verified

Hi,

This vehicle uses dual regulation, an internal regulator in the alternator that is controlled by the PCM.
If you jumpstart the vehicle (all fuses in) what is the operating voltage on the battery, or does it die immediately?

Ask Your Own Mitsubishi Question
Customer reply replied 1 year ago
This problem has happened 3 times in the past week. When I jump started the last time it was showing just over 9 volts. What i did was after I started removed alternator fuse which it then showed high charging then i replaced the fuse and it showed normal charging about 13.75 volts. I checked fuse connections used different fuse to make sure it was not a connection issue.Works fine for a day or so after putting fuse back in until the Battery light comes on and lights will dim. I had battery checked at autozone and showed OK
Mitsubishi Mechanic: Doug, ASE Certified Technician replied 1 year ago

Thanks. Do you think you can get it running/idling long enough to take some readings off the alternator PCM connector?

There isn't anything in the history to be aware of, like the alternator having been replaced with aftermarket in the past etc

Ask Your Own Mitsubishi Question
Customer reply replied 1 year ago
the alternator has not been replaced since I owned the car for 3 years.
Mitsubishi Mechanic: Doug, ASE Certified Technician replied 1 year ago

I'm sorry for the delay.

Having the alternator over charge with the fuse out is a bit disconcerting and would usually indicate the regulator inside the alternator is bad. The regulation system needs to be tested though to identify the issue..... of course fuses need to be installed and verified good as well as battery cables verified intact and not corroded etc.

With the engine idling and all loads off, you will need to put a DC meter between ground and one of the outer pins of the four pin connector on the alternator (connector plugged in) and measure the voltage. Then turn on the blower motor on high and take the voltage reading. Then the defroster, then the high beams.

Turn all loads off and move the meter lead to the other outer pin on the four pin connector and repeat the above steps.

If you see one wire start around 0V and slowly increase in voltage as each load is added, then the other starting at higher voltage (between 5-12v) and slowly decreasing as you add loads, then the PCM control is fine.... you need a new alternator.

If you have one or both wires not behaving as described and showing fixed 0V or fixed 12V for example, then the PCM is suspect.... you would want to verify you don't have any wiring damage and if not then replace the PCM (requires dealer to key program).

The majority of the time it is the alternator. Be aware that you can not use aftermarket alternators on these cars... they do not work properly in these vehicles and in some cases (NAPA, Duralast) they have been known to damage the PCM making a bad condition much worse.

Ask Your Own Mitsubishi Question
Ask Doug Your Own Question
Doug
Doug
Doug, ASE Certified Technician
Category: Mitsubishi
Satisfied Customers: 8,623
8,623 Satisfied Customers
Experience: Mitsubishi employed and Factory trained ASE certified technician

Doug 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:

Doug

Doug

ASE Certified Technician

8,623 satisfied customers

Mitsubishi employed and Factory trained ASE certified technician

George H.

George H.

ASE Certified Technician

310 satisfied customers

ASE Master tech 15+ years

Tim Mohr

Tim Mohr

ase master

204 satisfied customers

30 yrs foriegn and domestic, gas and diesel

Jake

Jake

Automotive Technician

185 satisfied customers

Experienced collision repair technician, Pulaski Tech graduate and DSM hobbyist.

Chris (aka- Moose)

Chris (aka- Moose)

Technician

148 satisfied customers

16 years of experience

Mike Kelly

Mike Kelly

Mitsubishi Mechanic

104 satisfied customers

17 years experience as an auto mechanic, foreign and domestic. 5 years running my own repair business.

AMD

AMD

Master Technician

48 satisfied customers

L1 Advanced Level Diagnostics Specialist

< Previous | Next >

Related Mitsubishi Questions
My 2002 montero sport When driving at 70 on a turnpike the
My 2002 montero sport When driving at 70 on a turnpike the normally smooth became a jerky type of feeling. When driving about 40 mph it feels like there is to much fuel getting to the engine and it fe… read more
Jake
Jake
Automotive Technician
Vocational, Technical or Trade Scho
185 satisfied customers
Where EXACTLY is Joint Connector 5 (JC5) listed as (C-14) in
This question is for Doug. Where EXACTLY is Joint Connector 5 (JC5) listed as (C-14) in the Mitsubishi Service Manual. I need to find this buss block to check to see if Batt+ is making it there from t… read more
Eric
Eric
Retired
N/A
14,436 satisfied customers
I have a 2001 mitsubishi montero sport and my alternator is
i have a 2001 mitsubishi montero sport and my alternator is not charging the system … read more
sprinkles08
sprinkles08
Technician
High School or GED
11 satisfied customers
Fog lamp 07 mitsubishi raider replacement. 0k
Fog lamp 07 mitsubishi raider replacement JA: Okay, I'll connect you to the mechanic to discuss this further with you. Before I do, is there anything else you want him to know? Customer: 0k… read more
baddad1
baddad1
technician
High School or GED
5 satisfied customers
The rear door lock won't lock. Not with power lock, and I
the rear door lock won't lock. Not with power lock, and I can not turn the key in that direction to lock it either. Any ideas how to fix it? … read more
vwtech0405
vwtech0405
VW Technician
Associate Degree
8,868 satisfied customers
I am trying to locate the automatic transmission relay for
I am trying to locate the automatic transmission relay for 2003 mitsubishi eclipse I am ge … read more
David Craig
David Craig
OWNER/MECHANIC
Associates
3,927 satisfied customers
2005 Mitsubishi Galant: What oil type and how many quarts?
Mitsubishi Galant 2005: What type of oil can I use, and how many quarts does it take in this car? Country: United States Make: Mitsubishi Model: Galant ES Year: 2005… read more
Doug
Doug
ASE Certified Technician
8,623 satisfied customers
What are the drain plug and fill plug sizes or locations for
What are the drain plug and fill plug sizes or locations for a rear differential on a 2011 Mitsubishi RVR GT (Outlander Sport). There is a 10mm hex bolt, a 24mm bolt, and a 17mm bolt. Pretty confident… read more
Eric
Eric
Retired
N/A
14,436 satisfied customers
Where would I find the cable that connects to the pin for
Where would I find the cable that connects to the pin for the hood alarm w204 2009 4matic Mercedes Benz… read more
Eurocar Inc
Eurocar Inc
Master Audi/VW Tech
Associate Degree
1,773 satisfied customers
I'm .our 05 (V6)Galant started running pretty poorly
Hi i'm jack.our 05 (V6)Galant started running pretty poorly yesterday,acts if it was misfiring and illuminating the check engine and service engine soon,and tcl is off lamp is now on.pressing the tcl … read more
Jake
Jake
Automotive Technician
Vocational, Technical or Trade Scho
185 satisfied customers
The car was sputtering a little on occasion but tonight the
The car was sputtering a little on occasion but tonight the power steering belt broke and I drive the car to a better lit part of the parking lot to see under the hood. After turning it off and talkin… read more
Peter Bagley
Peter Bagley
master technition
Vocational, Technical or Trade School
900 satisfied customers
I have a 2001 mitsubishi eclipse with check engine code
I have a 2001 mitsubishi eclipse with check engine code P1400. I tried to get smogged last week but it failed, as a small amount of smoke was seen coming from exhaust when they rapidly hit the throttl… read more
fordguy4u
fordguy4u
Automotive Tech
Vocational, Technical or Trade Scho
70 satisfied customers
Where is the fuel pump located and also the fuel delivery
Where is the fuel pump located and also the fuel delivery relay located. Is it possible to test the relay?… read more
Doug
Doug
ASE Certified Technician
8,623 satisfied customers
How and where to install FIXD in my 2004 Mitsubishi Galant
How and where to install FIXD in my 2004 Mitsubishi Galant car? … read more
Gunvir Singh
Gunvir Singh
1,702 satisfied customers
We had engine lights come on, said the ecm was bad. Sent out
We had engine lights come on, said the ecm was bad. Sent out a for a new part, part came in we were told we could plug it in and be good, however, the people who rebuild it said a sequence had to be p… read more
Matt
Matt
Engineer
Bachelor\u0027s Degree
5 satisfied customers
I drove an Mitsubishi ASX 2011. The "Transmission Required
Doug,I drove an Mitsubishi ASX 2011. The "Transmission Required service" light came on. When I stop the car and shut down the message don´t showed up. Today about 15 minute driving, on light condition… read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
I have A 3.5 Pajero GDI V6 engine this morning it gave me a
I have A 3.5 Pajero GDI V6 engine this morning it gave me a P0109 error, … read more
Matt
Matt
Engineer
Bachelor\u0027s Degree
5 satisfied customers
Mitsubishi Dealer said my 2009 Eclipse needed timing belt,
Mitsubishi Dealer said my 2009 Eclipse needed timing belt, water pump, Now it stalks and is slow to turn over. I fear it won't start tomorrow morning. How could the Mitsubishi service mechanic not get… read more
Mechanic01
Mechanic01
1,141 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