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 jeffrey590 Your Own Question

jeffrey590, ASE Master Technician
Category: Car
Satisfied Customers: 2846
Experience:  ASE Master Technician , Saab Master Technician w/ 35 years Dealer Experience in Advanced Level Diag.
Type Your Car Question Here...
jeffrey590 is online now
A new question is answered every 9 seconds

1998 Olds Intrigue: temp sensor..that controls the cooling fans..hose

Customer Question

1998 Olds Intrigue. Where is the temp sensor that controls the cooling fans? I saw in another site that it is located near the upper cooloin hose, but I have failed to see or locate it. Could someone be more specific about it's whereabouts?
Submitted: 6 years ago.
Category: Car
Expert:  jeffrey590 replied 6 years ago.
<p>GreetingsCustomer</p><p> </p><p>   Try the rear side of the radiator approx 1/3 down from the top...also make sure that you have good coolant flow and that the radiator is the same temp in all areas , especially by switch...poor or limited flow through the radiator will cause this problem due to the fact that the switch doesn't get hot enough to close...If I can be of further assistance please let me know...jeffrey590</p>
Customer: replied 6 years ago.
Ok, I still haven't found a sensor. I saw in another answer that it would possibly be the engin coolent sensor, but I still need to locate it. Can you be more specific about the location? Thanks

Expert:  jeffrey590 replied 6 years ago.
If its not in the radiator tank then it is near the thermostat book calls for either location depending on vehicle RPO...It is seperate from the ECT that you were told about...jeffrey590
Customer: replied 6 years ago.
Hello Jeffery590,

Sorry for the delayed response, but I really got busy on other committed items keeping me from working on the car until now. Your answer confirmed that the temp sensor is located on the lower side of the thermostat housing and it appears to be working well since I’m getting a reading on the interior gauge. But I continue to have overheating problems and the cooling fans do not respond. The fuses appear to be good leaving me with only one other possibility that I can think of, and that’s the relay(s) unless you can supply another possibility to check. Is there a quick test of the relay before I acquire a new one?


Customer: replied 6 years ago.
Now I have acquired a new relay and installed it with no change and I also acquired a temp sensor/sender that I will install tomorrow. The interior radiator fluid light is on too for which I will top off the fluid. After thazt I just don't know.
Expert:  jeffrey590 replied 6 years ago.
You need to check the coolant flow through the system and make sure the switch is getting hot enough to activate...If the coolant isnt circulating correctly then the system temperature will be different at certain locations and may cause the fans not to activate...also check the fans for +12volts and ground to make sure they are being energised and also make sure the fans work by jumping out the fans and even jumping out the switch...jeffrey590

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:

  • 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 P Elm City, NC
< Previous | Next >
  • 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 P Elm 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. Phil Marysville, 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. Charles Walnut 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!
    Sue Charleston, WV
  • Another great insight to what may be the problem. I will have my mechanic take a look at it tomorrow. Thanks again, do indeed know your stuff. Jim Castleberry, FL
  • Excellent reply, and also very quick. Really sounds like the Expert knows what he is talking about. I will be back to use your service when I need more help with my RV. Dutch USA

Meet The Experts:

  • Chris (aka-Moose)


    Satisfied Customers:

    16 years of experience
< Last | Next >
  • Chris (aka-Moose)'s Avatar

    Chris (aka-Moose)


    Satisfied Customers:

    16 years of experience
  • Ted G.'s Avatar

    Ted G.

    ASE Certified Technician

    Satisfied Customers:

    20 years auto repair experience, ASE Master Tech, Mechanical Failure consultant, Expert Witness
  • George H.'s Avatar

    George H.

    ASE Certified Technician

    Satisfied Customers:

    ASE Master Tech 15+ yrs, AAS Automotive Technology, Factory trained Asian specialist
  • GM Tech (Cam)'s Avatar

    GM Tech (Cam)

    Auto Service Tech

    Satisfied Customers:

    GM Grand Master Technician 2007. 14 years experience.
  • Amedee's Avatar


    ASE Master Tech

    Satisfied Customers:

    ASE Master Tech advanced level specialist. Wisconsin certified emissions state inspector
  • Jerry's Avatar


    Master Mechanic

    Satisfied Customers:

    ASE master, 30+ years. All makes and models. Trouble shooter, shop forman, service manager
  • Richard's Avatar


    ASE Certified Technician

    Satisfied Customers:

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