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 Dave Nova Your Own Question

Dave Nova
Dave Nova, Saturn Technician
Category: Saturn
Satisfied Customers: 18808
Experience:  ASE Master Certification. GM World Class Certification
Type Your Saturn Question Here...
Dave Nova is online now
A new question is answered every 9 seconds

How much should it cost to replace a temperature sensor in

Customer Question

How much should it cost to replace a temperature sensor in a 1999 Saturn ls?
Submitted: 4 years ago.
Category: Saturn
Expert:  Dave Nova replied 4 years ago.
Depending on the labor rate of the shop, altogether costs for repair should be $125 or less. The coolant temp. sensor itself is around $20 and the labor guide calls for 1.1 hours of labor.
Customer: replied 4 years ago.

I'm not looking at the unit. Are special tools required?

 

Expert:  Dave Nova replied 4 years ago.

Should not require any special tools, installation is straightforward. Here are the instructions.

 

graphic

 

NOTE: There is only one temperature sensor used for all coolant temperature readings the ECT sensor. The PCM uses this sensor to operate the temperature gage in the instrument cluster, illuminate the hot/low coolant lamp and for air/fuel control. This sensor is a two wire sensor.

REMOVAL

  1. Turn ignition Off. NOTE: Engine coolant must be drained below level of engine coolant temperature sensor before removal.
  2. Disconnect electrical connector from engine coolant temperature sensor. NOTE: The connector must be removed by squeezing the sides. Apply pressure to sides of connector gently with pliers. Do not pull on wires.
  3. Remove engine coolant temperature sensor using a deep well socket.

INSTALLATION

NOTE: Tap out sensor mounting hole in engine to remove any thread sealant residue. Clean any thread sealant from sensor threads and coat sensor with correct thread sealant if installing the same sensor.

  1. Apply thread sealant Saturn P/N 21485277 (Loctite 242 Threadlocker or equivalent) to sensor threads.
  2. Install engine coolant temperature sensor. - Torque: 8 NM (71 in. lbs)
  3. Connect electrical connector to the engine coolant temperature sensor. Push in until a click is heard and pull back to confirm a positive engagement.


Edited by Dave Nova on 12/17/2009 at 9:43 PM EST
Customer: replied 4 years ago.
Sorry, I don't know right now. I'll find out and contact you again
Expert:  Dave Nova replied 4 years ago.

Should not require any special tools, installation is straightforward. Here are the instructions.

 

graphic
View Full Image

 

NOTE: There is only one temperature sensor used for all coolant temperature readings the ECT sensor. The PCM uses this sensor to operate the temperature gage in the instrument cluster, illuminate the hot/low coolant lamp and for air/fuel control. This sensor is a two wire sensor.

REMOVAL

  1. Turn ignition Off. NOTE: Engine coolant must be drained below level of engine coolant temperature sensor before removal.
  2. Disconnect electrical connector from engine coolant temperature sensor. NOTE: The connector must be removed by squeezing the sides. Apply pressure to sides of connector gently with pliers. Do not pull on wires.
  3. Remove engine coolant temperature sensor using a deep well socket.

INSTALLATION

NOTE: Tap out sensor mounting hole in engine to remove any thread sealant residue. Clean any thread sealant from sensor threads and coat sensor with correct thread sealant if installing the same sensor.

  1. Apply thread sealant Saturn P/N 21485277 (Loctite 242 Threadlocker or equivalent) to sensor threads.
  2. Install engine coolant temperature sensor. - Torque: 8 NM (71 in. lbs)
  3. Connect electrical connector to the engine coolant temperature sensor. Push in until a click is heard and pull back to confirm a positive engagement.
Dave Nova, Saturn Technician
Category: Saturn
Satisfied Customers: 18808
Experience: ASE Master Certification. GM World Class Certification
Dave Nova and other Saturn Specialists are ready to help you
Customer: replied 4 years ago.

Thanks so much

Expert:  Dave Nova replied 4 years ago.
You are welcome. Thanks for using Just Answer.

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:

 
 
 
  • 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
< Last | Next >
  • 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
  • Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know. Robin Elkton, Maryland
  • He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here. Diane Dallas, TX
 
 
 

Meet The Experts:

 
 
 
  • 15yearsaturnguy

    Saturn master tech

    Satisfied Customers:

    1671
    25 years automotive experience, 15 years with Saturn
< Last | Next >
  • http://ww2.justanswer.com/uploads/BA/bassplayer360/2011-7-23_14023_mikeheadshot.64x64.jpg 15yearsaturnguy's Avatar

    15yearsaturnguy

    Saturn master tech

    Satisfied Customers:

    1671
    25 years automotive experience, 15 years with Saturn
  • http://ww2.justanswer.com/uploads/joecamel90/2008-11-13_03615_head_shot.jpg George H.'s Avatar

    George H.

    ASE Certified Technician

    Satisfied Customers:

    650
    ASE Master Tech 15+ Years
  • http://ww2.justanswer.com/uploads/PE/peterpete190/2012-2-24_1274_20120215135406.64x64.jpg Pete's Avatar

    Pete

    Saturn Mechanic

    Satisfied Customers:

    531
    15 years Saturn Technician experience.
  • http://ww2.justanswer.com/uploads/DR/drivefast1971/2012-1-12_172422_0009051tQKh.64x64.jpg Ron Z.'s Avatar

    Ron Z.

    - Saturn Tech -

    Satisfied Customers:

    391
    18+yrs experience. State Inspector and Saturn Diagnostics
  • http://ww2.justanswer.com/uploads/testedtuff/2009-09-26_170108_pictures.jpg John's Avatar

    John

    ASE Certified Technician

    Satisfied Customers:

    375
    Master ASE technician,Master GM technician,40 years experience
  • http://ww2.justanswer.com/uploads/Rocket2005/2009-09-13_133703_jack.jpg cartech's Avatar

    cartech

    ASE Certified Technician

    Satisfied Customers:

    305
    25 year master tech and shop owner
  • http://ww2.justanswer.com/uploads/MO/molurch/2012-6-6_214526_500.64x64.png Don 'Mo Lurch''s Avatar

    Don 'Mo Lurch'

    Saturn Mechanic

    Satisfied Customers:

    270
    GM, Chevrolet Cert., Heavy Line Mech, Race Shop Owner, Mobile Electronics.