Mitsubishi

Mitsubishi repair problems? Ask a mechanic for answers ASAP

Ask an Expert,
Get an Answer ASAP!

2002 Mitsubishi Montero Limited P0301 and P0 300 came up I…

Customer Question
2002 Mitsubishi Montero Limited...
2002 Mitsubishi Montero Limited P0301 and P0 300 came up I replace spark plugs I replace spark cables I replace coil's I drove the car for about half hour on highway to reset computer still had to put scan tool to erase i'm still code multiple misfire still comes out I bought original parts from dealer what do you recommend
Submitted: 2 years ago.Category: Mitsubishi
Show More
Show Less
Ask Your Own Mitsubishi Question
Answered in 6 minutes by:
2/29/2016
Mitsubishi Mechanic: peterpete190, Auto Technician replied 2 years ago
peterpete190
peterpete190, Auto Technician
Category: Mitsubishi
Satisfied Customers: 33,353
Experience: Auto repair Technician with 17 years experience.Past ASE and other certifications.
Verified

Hi my name is ***** ***** I will be happy to assist with this today.In some cases I may need more info to assist better.I apologize for any delay.

The misfire here may be coming from the cylinder 1 fuel injector not atomizing properly or an issue with low compression in cylinder 1 due to a fault with one of the valves in the cylinder head,cylinder wall damage or piston ring wear.

I would have a cylinder compression test done to see if there is a low compression issue.If low compression is found then the engine will need examined further to locate the source of the low compression and then repaired from there.

If compression is found to be o.k. then the fuel injectors need tested to see if cylinder #1 needs either cleaned or replaced.

If more help is needed, use the reply tab to continue our conversation. If no further assistance is needed, kindly rate my service.You can rate at any time and we can continue to work on your question as this will not close out your question.Keep in mind in some cases it can be difficult to fully diagnose or help repair your vehicle without seeing it and I work on delivering the best possible answer from what I see to work with.

Thanks Pete

Ask Your Own Mitsubishi Question
Customer reply replied 2 years ago
i'll try that see what happens thanks a lot prescient
Mitsubishi Mechanic: peterpete190, Auto Technician replied 2 years ago

Your welcome.

Let me know if you need anything else and feel free to rate my help here.

Thanks Pete

Ask Your Own Mitsubishi Question
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with a mitsubishi mechanicLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask peterpete190 Your Own Question
peterpete190
peterpete190
peterpete190, Auto Technician
Category: Mitsubishi
Satisfied Customers: 33,353
33,353 Satisfied Customers
Experience: Auto repair Technician with 17 years experience.Past ASE and other certifications.

peterpete190 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

7,002 satisfied customers

Mitsubishi employed and Factory trained ASE certified technician

George H.

George H.

ASE Certified Technician

317 satisfied customers

ASE Master tech 15+ years

Jake

Jake

Automotive Technician

213 satisfied customers

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

Tim Mohr

Tim Mohr

ase master

209 satisfied customers

30 yrs foriegn and domestic, gas and diesel

Chris (aka- Moose)

Chris (aka- Moose)

Technician

206 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
2002 Mitsubishi Montero Limited (Full size) – Stalling after
2002 Mitsubishi Montero Limited (Full size) – Stalling after replacing Idle Air Control Valve -Hi Doug, thank you for contributing your knowledge.My question is about a 2002 Mitsubishi Montero Limited… read more
Matt
Matt
Engineer
Bachelor\u0027s Degree
5 satisfied customers
On a 2007 Mitsubishi Grandis, I have a check engine coming
On a 2007 Mitsubishi Grandis, I have a check engine coming on for Nr. 4 cylinder. Have replaced the plug and the coil. Has 145 psi compression, and … read more
Cesar Jimenez
Cesar Jimenez
Owner/CEO
Vocational, Technical or Trade School
175 satisfied customers
Looking for spark plug wire routing for my 03 Mitsubishi
Looking for spark plug wire routing for my 03 Mitsubishi Montero Limited 3.8 I removed all electrical to replace with new components and forgot to document the routing of wires between coilover plugs … read more
Gunvir Singh
Gunvir Singh
1,949 satisfied customers
Runs great when cold gets hot ,no spark at 3,6 coil, Engine
Runs great when cold gets hot ,no spark at 3,6 coil … read more
ricardo hohl
ricardo hohl
automotive instructor
Associate Degree
1,818 satisfied customers
2001 Mitsubishi will not start. Montero sport. And it
2001 Mitsubishi will not start JA: Have you checked the battery, particularly the terminal connections? Are they corroded? Customer: Yes JA: What is the model of your '01 Mitsubishi? Customer: Montero… read more
David Craig
David Craig
OWNER/MECHANIC
Associates
5,856 satisfied customers
Getting lit up CEL for code po301 02 Montero sp 3.0. Just
Getting lit up CEL for code po301 02 Montero sp 3.0. Just did a tune up and retested the coil, spark wire and plug. All good. New fuel filter. My code only comes on when im driving on the highway and … read more
indy-tech
indy-tech
Shop owner, technician
Vocational, Technical or Trade Scho
11 satisfied customers
2004 Montero Sport - Initial maint.: Rough idle, oil leaks,
2004 Montero Sport - Initial maint.: Rough idle, oil leaks, A/C not working well, runs out pretty good with good power but after driving & engine heat up good it will not start back up until cool off … read more
Doug
Doug
ASE Certified Technician
Vocational, Technical or Trade Scho
7,002 satisfied customers
Mitsubishi Montero XLS: Doug, I recently got my spare
Hi Doug, I recently got my spare keys stolen and replaced the ignition lock module and got the doors rekeyed to the new key. I was wondering if there is anyway I can change the keyless remote signal a… read more
Doug
Doug
ASE Certified Technician
Vocational, Technical or Trade Scho
7,002 satisfied customers
Mitsubishi Montero Limited: Hello Dan, I have read codes and
Hello Dan, I have read codes and got the p0304 code on my Mitsubishi Montero Limited. Just checking to see possible causes. I can clear the code and it did not reoccur. Just wondering if I have coil g… read more
indy-tech
indy-tech
Shop owner, technician
Vocational, Technical or Trade Scho
11 satisfied customers
Mitsubishi Montero Limited: I replaced timing belt of my 2002
I replaced timing belt of my 2002 mitsubishi montero limited..i did follow all the procedures,but to make sure that it will start on the timing i made i start the engine with an open cover and it star… read more
Doug
Doug
ASE Certified Technician
Vocational, Technical or Trade Scho
7,002 satisfied customers
2002 Mitsubishi Montero sport 3.5L. Ive replaced the alternator
2002 Mitsubishi Montero sport 3.5L. I've replaced the alternator twice, the battery tested good. It started fine first thing. Drove a couple miles and turned it off while I was in the store for about … read more
Randall
Randall
Auto Technician / Consultant
Vocational, Technical or Trade Scho
69 satisfied customers
Mitsubishi Montero Sport: I have a 2002 Mitsubishi Montero
I have a 2002 Mitsubishi Montero Sport xls 3.5 i had the catylitic converters replaced, a tune up, the fuel filter and fuel pump changed and it still does not get enough exceleration when you push dow… read more
Doug
Doug
ASE Certified Technician
Vocational, Technical or Trade Scho
7,002 satisfied customers
Mitsubishi Montero Sport LS: Hi Doug, Im Tori. I have a 2002
Hi Doug, I'm Tori. I have a 2002 Mitsubishi Montero sport that a couple months ago I had to buy a used engine & apparently I bought a 3.5L engine instead of a 3.0L that was in there. However I've had … read more
Doug
Doug
ASE Certified Technician
Vocational, Technical or Trade Scho
7,002 satisfied customers
Mitsubishi Montero Limited: I have 2003 Mitsubishi Montero
I have 2003 Mitsubishi Montero Limited with 78,000 mileage. My Hydralic brake booster went bad yesterday. I was told it would cost $2,128.23 with 10% discount? My friends think it's too high since par… read more
Dan
Dan
Automotive Technician
Vocational, Technical or Trade Scho
25 satisfied customers
Mitsubishi Montero Sport xlt: My wife drives a 2002 Mitsubishi
My wife drives a 2002 Mitsubishi Montero Sport xlt. In the last 6 months we have been battling a PO300 random Misfire issue but the vehicle is undrivable. Our Mechanic replaced all 3 coils, 1 module, … read more
HondaPlatinum
HondaPlatinum
High School or GED
148 satisfied customers
2002 montero sport: 4x4 3.5L With 130..cylinder..ignition coil..I miss
I have 2002 montero sport 4x4 3.5L With 130,000 mile last week the code tell me it mist fire cylinder 1 I change out ignition coil 1 & 4 did not help so I was wondering what did I miss and is there so… read more
Doug
Doug
ASE Certified Technician
Vocational, Technical or Trade Scho
7,002 satisfied customers
Mitsubishi Montero Limited What is the part number for a 2002
What is the part number for a 2002 Mitsubishi Montero Limited Rear Door trim panel? The plastic part with the word Montero on it that holds the license plate and encloses the rear door latch? Mine cra… read more
Doug
Doug
ASE Certified Technician
Vocational, Technical or Trade Scho
7,002 satisfied customers
1999 Mitsubishi Galant: misfiring..spark plugs..same thing..the coil
I have a 1999 Mitsubishi Galant and the #1 cyllinder is misfiring. I put a new coil and spark plugs but the same thing is happening car starts fine and will drive but after some time driving, the coil… read more
Doug
Doug
ASE Certified Technician
Vocational, Technical or Trade Scho
7,002 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