Mazda

Mazda repair questions? Ask mechanics for answers ASAP

Ask an Expert,
Get an Answer ASAP!

Mazda MX-3: how to replace a heater core in a 1994 mazda M…

Customer Question
how to replace a heater...
how to replace a heater core in a 1994 mazda Miata
Submitted: 3 years ago.Category: Mazda
Show More
Show Less
Ask Your Own Mazda Question
Answered in 11 hours by:
7/8/2015
Mazda Mechanic: Ron, ASE Certified Technician replied 3 years ago
Ron
Ron, ASE Certified Technician
Category: Mazda
Satisfied Customers: 38,858
Experience: 35 years as a automotive tech
Verified
Hello, my name is ***** ***** I am a professional here at Just Answer. I have noticed that your question was not getting a response and thought I would see if you still need help with this.I apologize for the delay and I hope I can still assist you with this here.
In order to remove and replace the heater core you are going to need to remove the instrument panel in order to remove the AC/heater plenum to replace the core. See the steps in the link below.
https://dl.dropboxusercontent.com/u/104923897/Heater%20core%20Jul%208.pdf
https://dl.dropboxusercontent.com/u/104923897/Instrument%20Panel%20Jul%208.pdf
Ask Your Own Mazda Question
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with a mazda mechanicLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask Ron Your Own Question
Ron
Ron
Ron, ASE Certified Technician
Category: Mazda
Satisfied Customers: 38,858
38,858 Satisfied Customers
Experience: 35 years as a automotive tech

Ron 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:

Drew

Drew

Super Mazda Tech.

2,188 satisfied customers

19 yrs. experience. Mazda Senior Certified Tech, with Ford, Linc. & Merc. experience. ASE L1 Advanced Certified Master Tech.

Chris (aka- Moose)

Chris (aka- Moose)

Technician

929 satisfied customers

16 years of experience

mazdamaster577

mazdamaster577

Master Technician

691 satisfied customers

mazda master/shop foreman for 15 years.

George H.

George H.

ASE Certified Technician

459 satisfied customers

15+Years

Ron Z.

Ron Z.

- Mazda Tech -

425 satisfied customers

18+yrs experience. State Inspector and Mazda Diagnostics

Mike Kelly

Mike Kelly

Mazda Mechanic

273 satisfied customers

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

Mazda Ed

Mazda Ed

ASE Certified Technician

264 satisfied customers

ASE Certified Mazda Master Technician

< Previous | Next >

Related Mazda Questions
I am having a hard time find parts for a 1990 Mazda Miata. I
I am having a hard time find parts for a 1990 Mazda Miata. I need an engine wiring harness for the right side. I have found a 1996 Miata at a junk yard that was wrecked and wander, if I can use the en… read more
Todd Green
Todd Green
Associate
3 satisfied customers
Not heating. Coolant level fine and No there are no leaks.
Nothing so far want to know where and how so I can do so myself … read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
I was driving and die on me, dosent want to start and keep
i was driving and die on me, dosent want to start and keep running, i replaced the gas pump and still the same … read more
Gunvir Singh
Gunvir Singh
1,949 satisfied customers
I have a problem with my 2004 automatic mazda mx5 a/c is
i have a problem with my 2004 automatic mazda mx5 a/c is blowing air only i went to check it with an A/C guy … read more
supermechanic
supermechanic
Service consultant
Vocational, Technical or Trade Scho
10 satisfied customers
Mazda Miata: 1994 Miata, 44,000 miles. Air bag warning light
1994 Miata, 44,000 miles. Air bag warning light came on, when car hit bump in road. Mazda dealer in Kansas City is working on car and is having trouble finding the problem. Anyone have any ideas.… read more
Kavey
Kavey
86 satisfied customers
1994 mazda miata: started making..stop and push in the clutch
I own a 1994 mazda miata and it recently started making grinding sounds from the clutch(5 speed). When its in gear and driving there is no sound, but when i come to a stop and push in the clutch it st… read more
mazdamaster577
mazdamaster577
Master Technician
691 satisfied customers
1999 Mazda Miata: freeway..heater it runs cooler..misfire
My 1999 Mazda Miata Over heats during warm weather, espeically on the freeway. (I think this is due to running at 3900rpm) If I turn on the heater it runs cooler but still slightly over normal. It als… read more
HondaPlatinum
HondaPlatinum
High School or GED
148 satisfied customers
1991 miata: heater..what cood the problem be and how can I fix it.
My 1991 miata heater is slowly loosing heat. What cood the problem be and how can I fix it.… read more
HondaPlatinum
HondaPlatinum
High School or GED
148 satisfied customers
1992 mazda miata: replace the brake master cylinder
I need to replace the brake master cylinder on my 1992 mazda miata. How can I do this myself?… read more
supermechanic
supermechanic
Service consultant
Vocational, Technical or Trade Scho
10 satisfied customers
2006 Mazda Miata: access to the heater core..smell..heater fan
2006 Mazda Miata, access to the heater core, critters have invaded it, including the smell of a dead animal. I have removed the heater fan and am not able to clear things up. Need access to the core. … read more
mazdamaster577
mazdamaster577
Master Technician
691 satisfied customers
heater core be repaired by a competent radiator shop
Can a heater core be repaired by a competent radiator shop or must they always be replaced?… read more
Ron
Ron
ASE Certified Technician
Vocational, Technical or Trade Scho
38,858 satisfied customers
1994 mazda miata: the cooling fan intermittantly stays..kills..relay
I have a 1994 mazda miata that the cooling fan intermittantly stays on and kills the battery. Fan even runs when relay and main fuse is removed. The only way to turn fan off is by unplugging it. What … read more
indy-tech
indy-tech
Shop owner, technician
Vocational, Technical or Trade Scho
11 satisfied customers
1999 Mazda miata: few miles..check engine light lit..instrument panel
I recently purchased a 1999 Mazda Miata MX5 and after a few miles an check engine light lit up on the instrument panel. Subsequent Code check revealed a Code P1450 Fuel Tank Pressure Sensor. How is pa… read more
Mazda Ed
Mazda Ed
ASE Certified Technician
High School or GED
264 satisfied customers
1994 mazda miata: passenger airbags..ride..passanger airbags
I just bought a 1994 mazda miata M Edition and really don't know if it has passenger airbags. If it does, I would need to shut them off in order to take my 6 year old granddaughter with me for a ride.… read more
Mazda Ed
Mazda Ed
ASE Certified Technician
High School or GED
264 satisfied customers
Mazda Miata 1996 Mazda Miata with a capped off heater core
1996 Mazda Miata with a capped off heater core and now an A/C thats not blowing cold. Are they both related? How are they fixed?… read more
Drew
Drew
Super Mazda Tech.
Vocational, Technical or Trade Scho
2,188 satisfied customers
1994 mazda miata: i need to line up timing marks how do i
i need to line up timing marks how do i find shop manul for 1994 mazda miata mx-5 thank you… read more
Drew
Drew
Super Mazda Tech.
Vocational, Technical or Trade Scho
2,188 satisfied customers
Mazda miata: ac compressor..volts..the controls out of the dash so I
mazda miata ac compressor gets only 5.5 volts. have the controls out of the dash so I cancheck them. help… read more
HondaPlatinum
HondaPlatinum
High School or GED
148 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