How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Richard Your Own Question
Richard, Jeep Technician
Category: Jeep
Satisfied Customers: 4139
Experience:  Over 24 years of experience as lead tech and shop foreman.
Type Your Jeep Question Here...
Richard is online now
A new question is answered every 9 seconds

1999 Jeep grand Cherokee: fuses and relays..temperature sensor

This answer was rated:

1999 Jeep grand Cherokee Radiator fan not working fuses and relays good and I ran wires to the fan motor and it works. I also replaced the temperature sensor next to the thermostat and nothing seems to work. Can some one help
Can I get to unplug the rad fan relay and jump the gray wire to the dark green wire and see if it runs. The rad fan relay is not in the power distribution center. Here is a location diagram. Let me know, thanks!graphic
Customer: replied 7 years ago.
I will try this tomorrow morning and get back with you. Thanks
Your welcome! Let me know!
Customer: replied 7 years ago.
is the relay inside the relay and fuse box? I have switched the fan fuse with the blower moter fuse and the radiator fan still does not work. I am not sure if you are talking about a relay that is outside the relay box or the one that is in it?
It is not in the relay/fuse center, it is in front pass side under headlight. The picture I sent shows it towards the front of the vehicle, it does not look like a regular relay. I think you can see it by removing the pass headlamp assembly. Look at the wiring diagram I sent to see the wire colors. I hope this helps, thanks1
Customer: replied 7 years ago.
I jumped the gray wire and the dark green an the fan ran. What is my next step?
I will be with you shortly, thanks
Ok I am back! Know I would like you to plug the relay back in and hook a jumper wire on the battery negative and jump it to the Dark Blue/Pink wire with the relay plugged in the fan should run. You may have to bare that wire a bit to jump. Let me know!
Customer: replied 7 years ago.
The fan did not work with a jump from the negative terminal to the blue/pink
You have just diagnosed your problem. You need a rad fan relay the part number is(NNN) NNN-NNNN and it retails for $103.00 cad. I am glad I was able to help you diagnose this, thanks!
Richard, Jeep Technician
Category: Jeep
Satisfied Customers: 4139
Experience: Over 24 years of experience as lead tech and shop foreman.
Richard and other Jeep Specialists are ready to help you

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... seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like
...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
< Previous | Next >
  • 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. Stan Sayre, 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!!!! Alex Los 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. GP Hesperia, CA
  • I couldn't be more satisfied! This is the site I will always come to when I need a second opinion. Justin Kernersville, 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. Esther Woodstock, NY

Meet The Experts:

  • Chris


    Shop Foreman

    Satisfied Customers:

    Jeep Certified Master Tech
< Last | Next >
  • Chris's Avatar


    Shop Foreman

    Satisfied Customers:

    Jeep Certified Master Tech
  • Mark's Avatar


    22 Year Factory trained technician

    Satisfied Customers:

    Jeep factory training........25 years in the industry.
  • Dave's Avatar


    Jeep Master Tech

    Satisfied Customers:

    Chrysler Triple Master, ASE master Tech AA degree in Auto.
  • moparfl's Avatar


    ASE Certified Technician

    Satisfied Customers:

    ASE Master Tech Chrysler Dodge Jeep Master Tech
  • Tim Mohr's Avatar

    Tim Mohr


    Satisfied Customers:

  • Ron Z.'s Avatar

    Ron Z.

    - Jeep Tech -

    Satisfied Customers:

    18+yrs experience. State Inspector & Jeep Diagnostics/Repair
  • jeepmopar76's Avatar


    Jeep/Chrysler Triple Master Tech

    Satisfied Customers:

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