Car

Ask a Mechanic Online and Get Answers to Your Car Questions

Ask an Expert,
Get an Answer ASAP!

Car

My Mazda MPV 03 cooling fan runs most of the time and make

Customer Question
loud noise. The car does...
My Mazda MPV 03 cooling fan runs most of the time and make loud noise. The car does not heat
Submitted: 8 years ago.Category: Car
Show More
Show Less
Ask Your Own Car Question
Answered in 7 minutes by:
6/1/2009
Auto Mechanic: Neal, Mechanic replied 8 years ago
Neal
Neal, Mechanic
Category: Car
Satisfied Customers: 8,351
Experience: Auto repair pro and Mechanic on multiple makes.
Verified

The fan will also run when the A/C comprssor is running, along with running to keep the engine cool.

 

If it is running more than normal there may be a problem with the cooling system and the fan has to run more to keep the temp in the normal range.

 

If the fan is louder than normal the fan itself may be going bad.

 

 

 

 

Ask Your Own Car Question
Customer reply replied 8 years ago
The fan is running more than normal. What cooling problem could be like
Auto Mechanic: Neal, Mechanic replied 8 years ago
It could be many things including a plugged up radiator or a leak in the system. The first thing to do is to check for any leaks and to pressure test the sytem and the radiator cap. Most shops will do this for a small charge or even for free. You can also check the radiator by checking the temperature difference between the top and bottom of the radiator. If the radiator is hot at the top and cold at the bottom, it is plugged up and needs to be replaced.
Ask Your Own Car Question
Customer reply replied 8 years ago
How can I check for any leaks and pressure test?
Auto Mechanic: Neal, Mechanic replied 8 years ago
You can visually check for leaks, but you will need a pressure tester to pressurize the system. Some parts stores will loan you the pressure tester for free if you leave a deposit.
Ask Your Own Car Question
Customer reply replied 8 years ago
can the problem be associated with thermostat failure?
Auto Mechanic: Neal, Mechanic replied 8 years ago
It is possible but not very common.
Ask Your Own Car Question
Customer reply replied 8 years ago
One final question, how do distinguish the problem caused by thermostat failure or radiator problem
Auto Mechanic: Neal, Mechanic replied 8 years ago

By checking the radiator as I described you can rule out the radiator.

 

When the engine is at normal operating temperature, shut the engine off and see it the radiator is cold at the bottom. The higher you have to move up the radiator to find heat the worse it is. Be carful of the fan, it can kick on even when the engine is off. If you have one of those non-contact thermometers, they work well to check it.

Neal
Neal, Mechanic
Category: Car
Satisfied Customers: 8,351
Experience: Auto repair pro and Mechanic on multiple makes.
Verified
Neal and 87 other Car Specialists are ready to help you
Ask your own question now
Customer reply replied 8 years ago
Can you explain more "When the engine is at normal operating temperature, shut the engine off and see it the radiator is cold at the bottom. The higher you have to move up the radiator to find heat the worse it is"
Auto Mechanic: Neal, Mechanic replied 8 years ago
If the radiator is cold at the bottom and hot at the top it means the radiator is plugged up. It always gets plugged up from the bottom to the top.
Ask Your Own Car Question
Customer reply replied 8 years ago
what if the bottom is also hot? What other problem could be
Auto Mechanic: Neal, Mechanic replied 8 years ago
There are many possibilities, I have given you the most common. Please rule those out and then we can go on from there if need be.
Ask Your Own Car Question
Customer reply replied 8 years ago

Hi Neal

I took my MPV to a mechanic who checked radiator pressure and it was OK. Then he flushed the radiator and put new coolant. The problem is the same.

 

I compared my mpv with a friend's mpv and I noticed my right fan stops for a second and then runs slowly whereas my friends mpv the right fan comes to complete stop for few seconds and then works. I also noticed my fan is more noisy compared to his car.

 

Does that give you any clue?

Ask Neal Your Own Question
Neal
Neal
Neal, Mechanic
Category: Car
Satisfied Customers: 8,351
8,351 Satisfied Customers
Experience: Auto repair pro and Mechanic on multiple makes.

Neal 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

The nearest Volvo dealer is 160 miles away. Best $15 bucks I have spent in a long time!

Paul MCorpus Christi, TX

< Previous | Next >

Meet the Experts:

Chris (aka-Moose)

Chris (aka-Moose)

Technician

1,243 satisfied customers

16 years of experience

Ted G.

Ted G.

ASE Certified Technician

1,724 satisfied customers

20 years auto repair experience, ASE Master Tech, Mechanical Failure consultant, Expert Witness

George H.

George H.

ASE Certified Technician

1,537 satisfied customers

ASE Master Tech 15+ yrs, AAS Automotive Technology, Factory trained Asian specialist

GM Tech (Cam)

GM Tech (Cam)

Auto Service Tech

669 satisfied customers

GM Grand Master Technician 2007. 14 years experience.

Amedee

Amedee

Former ASE Master Tech

2,520 satisfied customers

ASE certified tech advanced level specialist. Wisconsin certified emissions state inspector

Jerry

Jerry

Master Mechanic

2,181 satisfied customers

ASE master, 30+ years. All makes and models. Trouble shooter, shop forman, service manager

Richard

Richard

ASE Certified Technician

1,000 satisfied customers

12 years Ford Lincoln/Mercury Jaguar dealership as a technician and shop foreman reparing all makes

< Previous | Next >

Related Car Questions
I hook up the charger to the battery in my truck set the
I hook up the charger to the battery in my truck set the charge on 12V and as soon as it is pluged in the amp needle jumps to 4-5 then 0 back and forth and does not stop until it is disconected. … read more
fordguy4u
fordguy4u
Automotive Tech
Vocational, Technical or Trade Scho
70 satisfied customers
Need an enclosed trailer to haul aglide and a honda rancher
Need an enclosed trailer to haul a*****glide and a honda rancher 4x4 and maybe some kyaks. Looking for any sugguestions and insight… read more
Mechanic01
Mechanic01
1,736 satisfied customers
1094 Isuzu Trooper heater blower motor and how to find it.
1094 Isuzu Trooper heater blower motor and how to find it. To replace it. … read more
kwiggins29059
kwiggins29059
Associate Degree
219 satisfied customers
My truck is in line so why is my steering wheel not in line
My truck is in line so why is my steering wheel not in line it sets cock to the left so if i adjust my tie rodes will it run side ways… read more
vwtech0405
vwtech0405
VW Technician
Associate Degree
8,868 satisfied customers
My 2010 odyssey sliding door on the driver side will open
My 2010 odyssey sliding door on the driver side will open some times but not always . Then after a few days will start working again … read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
I have a 2002 Toyota Solara. I just noticed that one of my
I have a 2002 Toyota Solara. I just noticed that one of my headlights is out. What should it cost at a shop to replace the bulb?… read more
baddad1
baddad1
technician
High School or GED
5 satisfied customers
Losing power checked with code reader P0113 intake temp
losing power checked with code reader P0113 intake temp sensor … read more
Cesar Jimenez
Cesar Jimenez
Owner/CEO
Vocational, Technical or Trade School
111 satisfied customers
Audi Q5 front brakes worn down after only 11,000 miles.
Audi Q5 front brakes worn down after only 11,000 miles. Sounds strange to me. … read more
Stephen, MBA
Stephen, MBA
Master's Degree
166 satisfied customers
Cant get back sliding door open passenger. just makes noise
Cant get back sliding door open passenger. just makes noise but will not open. … read more
Dan
Dan
Dealership Technician
Associate Degree
1,786 satisfied customers
I need to talk personally to a mechanic about my situation
I need to talk personally to a mechanic about my situation they would be a lot of typing and it would be much agers just to call the technician … read more
kalamykid
kalamykid
Pactor automotive
Vocational, Technical or Trade Scho
97 satisfied customers
I just bought a 1995 Damon Ultrasport. There are three
I just bought a 1995 Damon Ultrasport. There are three switches on the steps going into the RV. Two are white and one is red. What do they go to? … read more
Randall
Randall
Auto Technician / Consultant
Vocational, Technical or Trade Scho
69 satisfied customers
Code po344 in a 2012 Chrysler 300 3.6. Camshaft sensor. I
code po344 in a 2012 Chrysler 300 3.6 JA: Just to clarify, what's the exact code? And have you tried to reset it? Customer: camshaft sensor JA: Are you fixing your 300 yourself? What have you tried so… read more
Curtis
Curtis
Vocational, Technical or Trade Scho
1,694 satisfied customers
The car wont turn over the batt is up I make the starter
the car wont turn over the batt is up I make the starter crank by crossin the stater solenoid where to look? … read more
David Craig
David Craig
OWNER/MECHANIC
Associates
4,429 satisfied customers
2000 Toyota Sienna 3.0 Had multiple cylinder misfire 1-6 as
2000 Toyota Sienna 3.0 Had multiple cylinder misfire 1-6 as well as lean bank one..... Changed Plugs,Wires, and engine air filter... Cleared codes and lean bank one is still coming back. Vehicle has n… read more
David Craig
David Craig
OWNER/MECHANIC
Associates
4,429 satisfied customers
We set the timing according to the diagram. Once it was all
Eric, We set the timing according to the diagram. Once it was all together, we started the vehicle and cylinder 4 and 5 were misfiring with no cam crank corillation codes, just misfire. We pulled the … read more
Eric
Eric
Retired
N/A
14,436 satisfied customers
I have a 2007 Hyundai Sonata NF Elite and it's done 117000
I have a 2007 Hyundai Sonata NF Elite and it's done 117000 kms. I've just been asked if the timing belt has been replaced as I"m trying to sell it but it doesn't appear so. Was it due at 90000? … read more
George H.
George H.
ASE Certified Technician
Associate Degree
1,537 satisfied customers
Have an 04 Navigator 4WD crank no start, suspect FPDM but
Hey, have an 04 Navigator 4WD crank no start, suspect FPDM but have looked under rear can not find it, where is it located. … read more
David Craig
David Craig
OWNER/MECHANIC
Associates
4,429 satisfied customers
My 1959 Plymouth Sport Fury has a Kelsey- oval bellows brake
My 1959 Plymouth Sport Fury has a Kelsey-Hayes oval bellows brake booster, which was rebuilt in 9/13. At cruisn' the coast in 10/17 booster "locked up". Had to disconnect vacuum line to release. Recon… read more
roy
roy
Associate Degree
3 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