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 echase Your Own Question

echase
echase, Auto Technician
Category: Chevy
Satisfied Customers: 33
Experience:  ASE Master Auto,ASE Master Med/Heavy Truck, GM Master World Class Auto, GM Master Med/Heavy Truck
Type Your Chevy Question Here...
echase is online now
A new question is answered every 9 seconds

where are the O2 sensors loacated on a Chevy S10 ...

Resolved Question:

where are the O2 sensors loacated on a Chevy S10 pickup 2-dr 4 cyl
bank 1, sensor 2?
Submitted: 7 years ago.
Category: Chevy
Expert:  echase replied 7 years ago.

HiCustomer/p>

The o2 sensors are located in the exhaust pipe. The one you are looking for is the post cat sensor. The sensor furthest back in the pipe after the catalytic converter. Thanks for using JA and remember if I have helped please click accept!

Customer: replied 7 years ago.
Can you be more specific? From what info I've been able to see, I thought bank1 sensor 2 was in front of the catalytic converter not after.
Customer: replied 7 years ago.
Diagram/picture would help.
Expert:  echase replied 7 years ago.

HiCustomer/p>

What year is your chevy?

Customer: replied 7 years ago.
2001
Expert:  echase replied 7 years ago.

HiCustomer/p>

Here are the service procedures for replacing both of the o2 sensors on your veh. And on this veh with a 4cyl you only have one bank and 2 sensors so bank 1 sensor 1 is pre cat in the manifold and bank 1 sensor 2 is post cat in the pipe and no matter what gm veh you are working on sensor 1 is always pre cat and sensor 2 is always post cat. Thanks for using JA and remember if I have helped please click accept!

 

Oxygen Sensor Replacement


Tools Required

J 29533-A Oxygen Sensor Wrench

Removal Procedure

Notice: The Heated Oxygen Sensor (HO2S) and the Oxygen Sensor use a permanently attached pigtail and connector. Do not remove this pigtail from the Heated Oxygen Sensor. Damage or the removal of the pigtail or the connector could affect the proper operation of the sensor.Take care when handling the HO2S and the O2S. Keep the in-line electrical connector and the louvered end free of grease, dirt, or other contaminants. Also avoid using cleaning solvents of any type. Do not drop the HO2S or the O2S. Do not roughly handle the HO2S or the O2S.

When the engine temperature is below 48°C (120°F), the oxygen sensor (O2S) may be difficult to remove. Excessive force may damage the threads in the exhaust manifold or the exhaust pipe.

  1. Turn OFF the ignition.

    Caution: To avoid any vehicle damage, serious personal injury or death when major components are removed from the vehicle and the vehicle is supported by a hoist, support the vehicle with jack stands at the opposite end from which the components are being removed and strap the vehicle to the hoist.

  2. Raise the vehicle.
    Object Number: 638792  Size: SH

  3. Remove the electrical connector.
    Object Number: 639630  Size: SH

  4. Carefully back out the oxygen sensor and seal using the J 29533-A

Installation Procedure

Important: A special anti-seize compound is used on the oxygen sensor (O2S) threads. The compound consists of liquid graphite and glass beads. The graphite tends to burn away, but the glass beads remain making the sensor easier to remove. New or service replacement sensors already have the compound applied to the threads. If the sensor is removed from an engine and if for any reason the sensor is to be reinstalled, the threads must have anti-seize compound applied before the reinstallation.


    Object Number: 639630  Size: SH

  1. Coat the threads of the oxygen sensor with the anti-seize compound if necessary.

    Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  2. Install the sensor and seal.

    Tighten

    Tighten the sensor to 41 N·m (30 lb ft).


    Object Number: 638792  Size: SH

  3. Install the electrical connector.
  4. Lower the vehicle.

2001 Chevrolet S10 Pickup - 2WD

 

Heated Oxygen Sensor Replacement


Tools Required

J 29533-A HO2S Removal Tool

Removal Procedure

Notice: The Heated Oxygen Sensor (HO2S) and the Oxygen Sensor use a permanently attached pigtail and connector. Do not remove this pigtail from the Heated Oxygen Sensor. Damage or the removal of the pigtail or the connector could affect the proper operation of the sensor.Take care when handling the HO2S and the O2S. Keep the in-line electrical connector and the louvered end free of grease, dirt, or other contaminants. Also avoid using cleaning solvents of any type. Do not drop the HO2S or the O2S. Do not roughly handle the HO2S or the O2S.

When the engine temperature is below 48°C (120°F), the heated oxygen sensor (HO2S) may be difficult to remove. Excessive force may damage the threads in the exhaust manifold or the exhaust pipe.

  1. Turn OFF the ignition.

    Caution: To avoid any vehicle damage, serious personal injury or death when major components are removed from the vehicle and the vehicle is supported by a hoist, support the vehicle with jack stands at the opposite end from which the components are being removed and strap the vehicle to the hoist.

  2. Raise the vehicle.
  3. Disconnect the electrical connector.
    Object Number: 10975  Size: SH

    Notice: The use of excessive force may damage the threads in the exhaust manifold/pipe.

  4. Carefully remove the rear heated oxygen sensor (HO2S) using J 29533-A

Installation Procedure

Important: A special anti-seize compound is used on the HO2S threads. The compound consists of liquid graphite and glass beads. The graphite tends to burn away, but the glass beads remain, making the sensor easier to remove. New, or service replacement sensors already have the compound applied to the threads. If the sensor is removed from an engine and if for any reason the sensor is to be reinstalled, the threads must have anti-seize compound applied before the reinstallation.


    Object Number: 10975  Size: SH

  1. Coat the threads of the heated oxygen sensor with anti-seize compound if necessary.

    Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  2. Install the sensor

    Tighten

    Tighten the sensor to 41 N·m (30 lb ft).

  3. Connect the HO2S 2 electrical connector.
  4. Lower the vehicle.

2001 Chevrolet S10 Pickup - 2WD

echase, Auto Technician
Category: Chevy
Satisfied Customers: 33
Experience: ASE Master Auto,ASE Master Med/Heavy Truck, GM Master World Class Auto, GM Master Med/Heavy Truck
echase and 9 other Chevy 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... 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 was having a terrible problem with the wheel bearings on my 98 Chevy Cavalier and I suspect that using this website saved me plenty of time and money. Todd L Rochester NY
< Last | Next >
  • I was having a terrible problem with the wheel bearings on my 98 Chevy Cavalier and I suspect that using this website saved me plenty of time and money. Todd L Rochester NY
  • 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
 
 
 

Meet The Experts:

 
 
 
  • Tim's Auto Repair

    mechanic

    Satisfied Customers:

    7641
    Have owned a repair shop for 25 yrs.
< Last | Next >
  • http://ww2.justanswer.com/uploads/TI/tim37857/2011-10-28_23053_S6301814.64x64.JPG Tim's Auto Repair's Avatar

    Tim's Auto Repair

    mechanic

    Satisfied Customers:

    7641
    Have owned a repair shop for 25 yrs.
  • http://ww2.justanswer.com/uploads/DT/dt69nova/2012-6-15_234154_pic1.64x64.jpg Dave Nova's Avatar

    Dave Nova

    Chevrolet Technician

    Satisfied Customers:

    6870
    ASE Master Certification. GM World Class Certification
  • http://ww2.justanswer.com/uploads/ggrote1/2009-06-27_031011_me.jpg Gary's Avatar

    Gary

    Chevy Technician

    Satisfied Customers:

    5404
    15 years GM master tech
  • http://ww2.justanswer.com/uploads/testedtuff/2009-09-26_170108_pictures.jpg John's Avatar

    John

    Master A.S.E Automotive technician

    Satisfied Customers:

    4071
    A.S.E MasterTechnician A1-A8 w/L1,38 years experience General Motors Master Technician
  • http://ww2.justanswer.com/uploads/RO/rodcuda/2011-7-25_224114_Donhoff1.64x64.JPG Neal's Avatar

    Neal

    Chevy Mechanic

    Satisfied Customers:

    2306
    Shop Owner and Mechanic on multiple makes.
  • http://ww2.justanswer.com/uploads/goodwrench9124/2008-11-09_220838_dscf0007.jpg goodwrench9124's Avatar

    goodwrench9124

    ASE Certified Technician

    Satisfied Customers:

    2041
    Ase Master Certified, GM Master Certified Tech. Awarded GM Top performer, Hybrid certified
  • http://ww2.justanswer.com/uploads/DR/drivefast1971/2012-1-12_172422_0009051tQKh.64x64.jpg Ron Z.'s Avatar

    Ron Z.

    - Chevy Tech -

    Satisfied Customers:

    1912
    18+yrs experience. State Inspector and Chevy Diagnostics