Jeep

Have Jeep Questions? Ask a Jeep Repair Expert for Answers

Ask an Expert,
Get an Answer ASAP!

Jeep

2002 Jeep Grand Cherokee Overland: My Heater fan motor..cold weather

Customer Question
Ok I have a 2002...
Ok I have a 2002 Jeep Grand Cherokee Overland. My Heater fan motor does not work in cold weather. It stopped working last year in the Winter and when I went to Florida it started working again. This winter it stopped following some cold nights.
Submitted: 9 years ago.Category: Jeep
Show More
Show Less
Ask Your Own Jeep Question
Answered in 8 minutes by:
11/29/2008
Jeep Mechanic: Mark, 22 Year Factory trained technician replied 9 years ago
Mark
Mark, 22 Year Factory trained technician
Category: Jeep
Satisfied Customers: 11,384
Experience: Jeep factory training........25 years in the industry.
Verified

Welcome to JA Jeep my name is Mark.

 

Do you have automatic temperature control or the manual heater a/c system?

 

 

Ask Your Own Jeep Question
Customer reply replied 9 years ago

Automatic temperature control

The fan doesn't work in auto or in manual the temperature control allows the car to have hot air by driving. I thought that it might be a temperature control damper that closes or opens based upon outside temps

 

Jeep Mechanic: Mark, 22 Year Factory trained technician replied 9 years ago

Good thanks.

 

Models equipped with the optional Automatic Zone Control (AZC) system have a blower motor controller. The controller allows the selection of almost infinitely variable blower motor speeds. The controller is mounted to the HVAC housing, under the instrument panel and just inboard of the blower motor, in the same location used for the blower motor resistor on manual temperature control systems. It can be accessed without removing any other components.

 

Checking under the dash and having a look at the wire connector to this controller may show some overheated connections.

 

A new blower motor controller is your most likely cause and a new connector if there are any signs of overheating.

Mark
Mark, 22 Year Factory trained technician
Category: Jeep
Satisfied Customers: 11,384
Experience: Jeep factory training........25 years in the industry.
Verified
Mark and 87 other Jeep Specialists are ready to help you
Ask your own question now
Ask Mark Your Own Question
Mark
Mark
Mark, 22 Year Factory trained technician
Category: Jeep
Satisfied Customers: 11,384
11,384 Satisfied Customers
Experience: Jeep factory training........25 years in the industry.

Mark 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:

Thank you so much for your answer. My initial estimate was $325; I got it done for $100 - part and labor.

Lynn B.Ormond Beach, FL

I was skeptical at first but thought I'd give it a try. I was pleasantly surprised. Your site actually is a quality service that I would recommend to others in a heartbeat.

StanSayre, PA

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

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

< Previous | Next >

Meet the Experts:

Chris

Chris

Shop Foreman

3,449 satisfied customers

Jeep Certified Master Tech

Mark

Mark

22 Year Factory trained technician

11,384 satisfied customers

Jeep factory training........25 years in the industry.

Dave

Dave

Jeep Master Tech

1,149 satisfied customers

Chrysler Triple Master, ASE master Tech AA degree in Auto.

moparfl

moparfl

ASE Certified Technician

1,130 satisfied customers

ASE Master Tech Chrysler Dodge Jeep Master Tech

Tim Mohr

Tim Mohr

ASE MASTER TECH

1,021 satisfied customers

30 YRS EXPERIENCE, FOREIGN AND DOMESTIC, GAS AND DEISEL

Ron Z.

Ron Z.

- Jeep Tech -

629 satisfied customers

18+yrs experience. State Inspector & Jeep Diagnostics/Repair

jeepmopar76

jeepmopar76

Jeep/Chrysler Triple Master Tech

579 satisfied customers

32yr ASE Master Tech, 9yr Chrysler Master Tech, 19 yr Jeep Dealership service including AMC/Eagle

< Previous | Next >

Related Jeep Questions
I have a 2006 Jeep Liberty CRD. Recently the engine temp is
I have a 2006 Jeep Liberty CRD. Recently the engine temp is running colder than normal and there is very little heat in the cab. Could it be anything besides the thermostat? If it is the thermostat, d… read more
Chris
Chris
Shop Foreman
3,449 satisfied customers
No crank no start. A 2006 Jeep Liberty. Actuator pins good
Actuator pins good the battery is good the starter is good no ground on on pin 85 starter relay … read more
Amedee
Amedee
Automotive Consultant
Vocational, Technical or Trade Scho
18,515 satisfied customers
One of my remotes won't start my 2015 jeep grand Cherokee -
one of my remotes won't start my 2015 jeep grand Cherokee - horn will blow once, then nothing - the other remote will start the jeep but won't lock the doors. … read more
-Brad-
-Brad-
Technician at Dodge Dealership
Vocational, Technical or Trade Scho
7,982 satisfied customers
1999 Jeep Cherokee Sport 125,000 Miles. No I know very
Intermiten failure of door & window controls as well as gages on instrument pannel… read more
Amedee
Amedee
Automotive Consultant
Vocational, Technical or Trade Scho
18,515 satisfied customers
I have an 08' jeep wrangler. I have recently installed LED
I have an 08' jeep wrangler. I have recently installed LED tail lights and front turn signals. I have resistors on all 4 lights. All four flashers blink when I turn on the turn signal. … read more
Peter Zavarelli
Peter Zavarelli
General auto certifications
269 satisfied customers
1984 jeep cj7 4.2 I6 did a tune up replaced spark plugs,
1984 jeep cj7 4.2 I6 did a tune up replaced spark plugs, wires, air filter, oil, oil filter, ignition coil, and complete distributor. Now it's very hard to start cold, have to stay on the accelerator … read more
JOHN aka Eauto
JOHN aka Eauto
self employed
High School or GED
10,348 satisfied customers
The bcm is bad. 98 grand cherokee. Parasidic draw on the 50
i unplgged the bcm and then my draw came back pullrd the#8 fuse draw went away is that because what ever is in that circuit did not go to sleep… read more
Chris
Chris
Shop Foreman
3,449 satisfied customers
What is and how does an electronic throttle control work?
what is and how does an electronic throttle control work? … read more
Randall C
Randall C
Auto Technician / Consultant
Vocational, Technical or Trade Scho
12,307 satisfied customers
The ac does not respond on the dash board screen. IT WILL
The ac does not respond on the dash board screen. IT WILL ONLY CYCLE Thru 75 degrees and HI. Is it a software issue, a fuse out in the fuse box ? It just happened when I touched the dash board control… read more
Chris
Chris
Shop Foreman
3,449 satisfied customers
I have a 2004 wrangler 4.0 automatic, it shifts into OD at
I have a 2004 wrangler 4.0 automatic, it shifts into OD at 45 mph and lugs down, between 45 and 60 the engine makes a humming sound if I disengage OD it stops , in OD its not noticeable after 60, also… read more
Chris (aka- Moose)
Chris (aka- Moose)
Vocational, Technical or Trade School
47,161 satisfied customers
Why does my 1996 Grand Cherokee Larado keep [puffing smoke
why does my 1996 Grand Cherokee Larado keep [puffing white smoke when I am driving None can give me an answer I cannot chat, I am almost deaf. My email is***@******.*** … read more
Todd M
Todd M
Owner
ASE Certification
1,484 satisfied customers
I am not getting the ground to the resistor module or to the
I am not getting the ground to the resistor module or to the switch. … read more
George H.
George H.
Technician
Associate Degree
18,733 satisfied customers
Battery was change started up for a minute then cut off,
battery was change started up for a minute then cut off, will not turn over there is power and shift gear automatic but will not turn over I hear clicking iam assuming its the starter … read more
Peter Zavarelli
Peter Zavarelli
General auto certifications
269 satisfied customers
01 jeep wrangler starter wire. Trying to find wire from fuse
yes and there was a swap from the 2.5 to a 5.3 with wiring issues. need to know which wire goes from fuse block to starter … read more
Amedee
Amedee
Automotive Consultant
Vocational, Technical or Trade Scho
18,515 satisfied customers
Code reader can't link on Jeep Liberty. Abs light on can't
Code was read recently , Po123 TPS changed TPS no change now cannot even link to vehicle ? … read more
jim
jim
Vocational, Technical or Trade Scho
1,317 satisfied customers
I have replaced the IAC and TPC I also have tried spraying
I have replaced the IAC and TPC I also have tried spraying throttle body cleaner all over vac lines and intake with no change noted. Engine will idle normally at times but most often idles high… read more
Eric
Eric
Retired
N/A
31,322 satisfied customers
Trying to install a new altinator on my jeep 2001 Cherokee
trying to install a new altinator on my jeep 2001 Cherokee 4.0 … read more
Roy
Roy
shop foreman
Associate Degree
3,921 satisfied customers
I have a 2005 Jeep Grand Cherokee. The driver side wiper
I have a 2005 Jeep Grand Cherokee. The driver side wiper will not return to the off position and when using rides off the edge of the windshield? … read more
Jaybird61
Jaybird61
Master Automotive Mechanic
2,228 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