Mazda

Mazda Repair Questions? Ask Mechanics for Answers ASAP

Ask an Expert,
Get an Answer ASAP!

Mazda
This answer was rated:

It quit producing heat. Had a radiator plug failure last

week when the fan didn't...
It quit producing heat. Had a radiator plug failure last week when the fan didn't turn on and coolant got hot. The plastic plug is approximately 2" outboard of the lower coolant hose. Removed the radiator, replaced the plug, reinstalled, and serviced with anti-freeze. System took approximately 1.5 gal total. Since then, no heat. Fan blows cold air. Apparently a blockage in the line to or from the heater core of some kind or maybe a clogged core. Was told to jack up front of car then run it to clear a possible air blockage. Ran car for over an hour with front raised 18". All that happened was coolant got hot again with on fan coming on and STILL no hot air in car. I'm guessing you'll tell me to change the temp sensor, but that still doesn't seem to address the lack of hot coolant getting to the heater core. Help.
JA: Have you checked the connectors on the sensor itself? It's important that they not be loose or corroded. What is the model/year of your Mazda?
Customer: It's a '91. Where is the connector and associated sensor? The fan will run when engine is warm occasionally. It did once last week post radiator reinstall. Is there another sensor for the heating system?
JA: Are you fixing your vehicle yourself? What have you tried so far?
Customer: I'm fixing it myself. Told you both all that's transpired with it since last Monday pm when the plug failed.
JA: Anything else you want the mechanic to know before I connect you?
Customer: Can't think of anything else to share that's related. 274,000 on it.
Show More
Show Less
Ask Your Own Mazda Question
Answered in 20 minutes by:
1/10/2017
Jerry
Jerry, Master Mechanic
Category: Mazda
Satisfied Customers: 17,221
Experience: ASE Master certified, 30 years experience. Auto troubleshooting, electrical , ABS, SRS, EFI system
Verified

Hello and welcome. My name is ***** ***** you for visiting the site, I am reviewing your question and will reply shortly, thanks.

Ask Your Own Mazda Question

1991 Mazda what?

How is the thermostat?

Ask Your Own Mazda Question
Customer reply replied 10 months ago
That seems to be working fine. Local trips plus a 120 mile round trip showed normal temp indications.
Customer reply replied 10 months ago
39;91 mx6.

I see, thanks. Do both of the heater hoses feel hot after running for a while?

Ask Your Own Mazda Question
Customer reply replied 10 months ago
Maybe not hot, but warm.

Sometimes it hard to tell if the temp door actuator is working. Does it seem to change any when going from hot to cold? (like get colder)

Ask Your Own Mazda Question
Customer reply replied 10 months ago
No, always cold or at best garage temp.

That could just be a bad actuator for the temp door but you may want to try flushing the heater core with a garden hose and blow some shop air through it first. It's more common for the heater core to become plugged up after the system has been opened up.

Ask Your Own Mazda Question
Customer reply replied 10 months ago
Will give that a shot. Thanks. Are they easy to get at or a pain?

The actuator is on top center of the heater box, about 3 hours book time. There is a test for it but you have to get at it to test, thanks.

Jerry
Jerry, Master Mechanic
Category: Mazda
Satisfied Customers: 17,221
Experience: ASE Master certified, 30 years experience. Auto troubleshooting, electrical , ABS, SRS, EFI system
Verified
Jerry and 87 other Mazda Specialists are ready to help you
Ask your own question now
Ask Jerry Your Own Question
Jerry
Jerry
Jerry, Master Mechanic
Category: Mazda
Satisfied Customers: 17,221
17,221 Satisfied Customers
Experience: ASE Master certified, 30 years experience. Auto troubleshooting, electrical , ABS, SRS, EFI system

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:

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

856 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

454 satisfied customers

15+Years

Ron Z.

Ron Z.

- Mazda Tech -

393 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
The middle control home panel has come out, it still works
The middle control home panel has come out, it still works but it needs to be fixed back in … read more
Mechanic01
Mechanic01
1,151 satisfied customers
My RX8 won. Won't start2008. Replaced battery,coils,spark
Yes,replaced battery,coils,spark plugs, wires,altitude sensor cleaned secondary shutter valve and maf and throttle body … read more
David Craig
David Craig
OWNER/MECHANIC
Associates
3,931 satisfied customers
I have a code p2709 on mazda6 2009. I try to reset but the
Yes I try to reset but the atc light is not cleared then change all 6 sensors of the transmission and the light goes on without turning off and shows the same code … read more
Dan
Dan
Automotive Technician
Vocational, Technical or Trade Scho
25 satisfied customers
I have a 2010 maxda cx9 and Thursday my wife was driving the
I have a 2010 maxda cx9 and Thursday my wife was driving the car on the free way and the radio,alarm and dome lights all stopped working. The car still runs but that is weird. What should I do? … read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
My check engine light went on at the beginning of a short
My check engine light went on at the beginning of a short drive to the train station and back, and didn't go off. The car seems to be functioning normally. It was just serviced last Wednesday. I have … read more
Jaybird61
Jaybird61
Master Automotive Mechanic
1,895 satisfied customers
I just got a 2016 Mazda 3 and the Bluetooth was working fine
Hi I just got a 2016 Mazda 3 and the Bluetooth was working fine I could play music and answer and hang up phone calls but now it will connect my phone but won't play any audio whatsoever … read more
Chris (aka- Moose)
Chris (aka- Moose)
Technician
Vocational, Technical or Trade School
856 satisfied customers
1999 indicator and hazard light periodically stop working.
1999 indicator and hazard light periodically stop working … read more
Mechanic01
Mechanic01
1,151 satisfied customers
A/c was working now it blows hot and when it's off it blows
A/c was working now it blows hot and when it's off it blows hot air out by your feet 97 b4000 … read more
sprinkles08
sprinkles08
Technician
High School or GED
11 satisfied customers
Cel with p0301 with rough idle and misfires. Good spark and
Cel with p0301 with rough idle and misfires. Good spark and wires. Delayed throttle signal being sent. Etv system. While smoke from exhaust. Runs smooth after 2000 rpm but shakes between 1000-2000 rpm… read more
Eric
Eric
Auto Technician
589 satisfied customers
I have a 2010 mazda 6 the rear passenger side door wont open
I have a 2010 mazda 6 the rear passenger side door wont open (from inside or outside). The lock apears to be locking and unlocking normally... … read more
Mechanic01
Mechanic01
1,151 satisfied customers
Water leaking from under dash. Water & coolant ,left side of
Water & coolant ,left side of glove box inder dash ,white plastic box … read more
David Craig
David Craig
OWNER/MECHANIC
Associates
3,931 satisfied customers
My Mazda 6 is reading a code 0300 and 0304, can I still
My Mazda 6 is reading a code 0300 and 0304, can I still drive it I don't get paid until Friday … read more
Eric
Eric
Retired
N/A
14,436 satisfied customers
My brother bought a 2005 Mazda Tribute 3.0 the other day. It
My brother bought a 2005 Mazda Tribute 3.0 the other day. It has an aftermarket remote starter on it. The batteries were dead in the fob so he replaced them. He then Tried it out several times trying … read more
kalamykid
kalamykid
Pactor automotive
Vocational, Technical or Trade Scho
97 satisfied customers
My clutch pedal is going almost down to the floor before it
My clutch pedal is going almost down to the floor before it disengage is the clutch … read more
kalamykid
kalamykid
Pactor automotive
Vocational, Technical or Trade Scho
97 satisfied customers
I have a 1994 mazda b2300 2wd. The upper ball joints have
I have a 1994 mazda b2300 2wd. The upper ball joints have some sort of locking cap mechanism that I cannot figure out how to remove in order to remove the joint itself. Every video and instructional t… read more
fordguy4u
fordguy4u
Automotive Tech
Vocational, Technical or Trade Scho
70 satisfied customers
I have a mazda van key won't remove when turned off. Key has
I have a mazda van key won't remove when turned off … read more
Chris (aka- Moose)
Chris (aka- Moose)
Technician
Vocational, Technical or Trade School
856 satisfied customers
Cannot find the radio fuse box where it is located. I do not
Cannot find the radio fuse box where it is located. I do not have a service manual. The diagram does not indicate radio. Need help to locate the fuse. I have a Mazda 2000MVP … read more
kalamykid
kalamykid
Pactor automotive
Vocational, Technical or Trade Scho
97 satisfied customers
I'm getting my kicked by a O4 Mazda 6 with 3.0. Car came in
Hello i'm getting my butt kicked by a O4 Mazda 6 with 3.0. Car came in with an intermittent misfire on cylinder4 and 6. I smoke test the intake and found big leaks in the intake so replaced the lower … read more
Eric
Eric
Auto Technician
589 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