Question about 1999 Toyota Camry

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Removal and replacement of oxygen sensor located on catalyser

It is seized !! Even heating it and spraying water won't do. I've been told I'd have to change the whole part.

If anyone had a similar problem...

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If done properly the right size ring spanner and oxy/acet will get this part off throwing water at it while hot is not advised.It needs to be heated evenly until it is anice red color,put the ring spanner on it and try to tighten,yes tighten,until it moves.once its moved undo it.Oddly enough tightening a jammed bolt will ,before undoing it ,make it easier to release the threads seal.

Posted on Oct 17, 2008

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Where is the o2 sensor on a 2004 blazer located


Removal & Installation

Raise and support the vehicle.
Support rear of the powertrain frame.
Remove four rear frame bolts.
Lower the frame no more than 73.2 mm (3 inches).
Disconnect the rear oxygen sensor electrical connector.
Remove the rear oxygen sensor from the rear exhaust manifold.

To install:

Install the rear oxygen sensor in the rear exhaust manifold. Tighten the rear heated oxygen sensor (HO2S) sensor to 41 Nm (30 ft. lbs.).
Connect the rear oxygen sensor connector.
Raise the frame.
Install the four rear frame bolts. Tighten the frame bolts to 100 Nm (74 ft. lbs.).
Lower the vehicle.


Heated Oxygen Sensor Bank 1 Sensor 1 (HO2S 1/1)

WARNING: Handle the oxygen sensors carefully in order to prevent damage to the component. Keep the electrical connector and the exhaust inlet end free of contaminants. Do not use cleaning solvents on the sensor. Do not drop or mishandle the sensor.

CAUTION: Remove oxygen sensors with the engine temperature above 48C (120F). Otherwise the oxygen sensors may be difficult to remove.

A special anti-seize compound is used on the oxygen sensor threads. New service sensors should already have the compound applied to the threads. Coat the threads of a reused sensor with anti-seize compound P/N 5613695 or equivalent.

11_14_2011_1_39_03_pm.jpg

Fig. Showing the location of the HO2S Bank 1 Sensor 1

Heated Oxygen Sensor Bank 1 Sensor 2 (HO2S 1/2)

CAUTION
Handle the oxygen sensors carefully in order to prevent damage to the component. Keep the electrical connector and the exhaust inlet end free of contaminants. Do not use cleaning solvents on the sensor. Do not drop or mishandle the sensor.

CAUTION: Remove oxygen sensors with the engine temperature above 48C (120F). Otherwise the oxygen sensors may be difficult to remove.

WARNING: A special anti-seize compound is used on the oxygen sensor threads. New service sensors should already have the compound applied to the threads. Coat the threads of a reused sensor with anti-seize compound P/N 5613695 or equivalent.

11_14_2011_1_40_07_pm.jpg

Fig. Showing the location of the HO2S Bank 1 Sensor 2

Raise and support the vehicle.
Remove the heat shield.
Disconnect the heated oxygen sensor electrical connector.
Remove the heated oxygen sensor.

To install:

Install the heated oxygen sensor. Tighten the heated oxygen sensor (HO2S) to 41 Nm (30 ft. lbs.).
Connect the heated oxygen sensor electrical connector. CAUTION
Ensure connectors are securely installed beneath harness heat shield to prevent damage.
Install the heat shield.
Lower the vehicle.


Heated Oxygen Sensor Bank 2 Sensor 1 (HO2S 2/1)

CAUTION: Handle the oxygen sensors carefully in order to prevent damage to the component. Keep the electrical connector and the exhaust inlet end free of contaminants. Do not use cleaning solvents on the sensor. Do not drop or mishandle the sensor.

CAUTION: Remove oxygen sensors with the engine temperature above 48C (120F). Otherwise the oxygen sensors may be difficult to remove.

WARNING: A special anti-seize compound is used on the oxygen sensor threads. New service sensors should already have the compound applied to the threads. Coat the threads of a reused sensor with anti-seize compound P/N 5613695 or equivalent.

Raise and support the vehicle.
Remove the air deflector.
Disconnect the front oxygen sensor electrical connector.
Remove the front oxygen sensor from the front exhaust manifold.

11_14_2011_1_37_39_pm.jpg

Fig. Showing the location of the HO2S Bank 2 Sensor 1

To install:
Install the front oxygen sensor in the front exhaust manifold. Tighten the front HO2S sensor to 41 Nm (30 ft. lbs.).
Connect the front oxygen sensor electrical connector.
Install the air deflector.
Lower the vehicle.

Hope this helps; also keep in mind that your feedback is important and I'll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using Fixya, and have a nice day.

Oct 14, 2011 | Cars & Trucks

1 Answer

Location of oxygen sensor on 2004 blazer check engine light keeps coming on. Replaced sensor no change. At bank 1 sensor is not connected when tested.


Removal & Installation

Raise and support the vehicle.
Support rear of the powertrain frame.
Remove four rear frame bolts.
Lower the frame no more than 73.2 mm (3 inches).
Disconnect the rear oxygen sensor electrical connector.
Remove the rear oxygen sensor from the rear exhaust manifold.

To install:

Install the rear oxygen sensor in the rear exhaust manifold. Tighten the rear heated oxygen sensor (HO2S) sensor to 41 Nm (30 ft. lbs.).
Connect the rear oxygen sensor connector.
Raise the frame.
Install the four rear frame bolts. Tighten the frame bolts to 100 Nm (74 ft. lbs.).
Lower the vehicle.


Heated Oxygen Sensor Bank 1 Sensor 1 (HO2S 1/1)

WARNING: Handle the oxygen sensors carefully in order to prevent damage to the component. Keep the electrical connector and the exhaust inlet end free of contaminants. Do not use cleaning solvents on the sensor. Do not drop or mishandle the sensor.

CAUTION: Remove oxygen sensors with the engine temperature above 48C (120F). Otherwise the oxygen sensors may be difficult to remove.

A special anti-seize compound is used on the oxygen sensor threads. New service sensors should already have the compound applied to the threads. Coat the threads of a reused sensor with anti-seize compound P/N 5613695 or equivalent.

11_14_2011_1_39_03_pm.jpg

Fig. Showing the location of the HO2S Bank 1 Sensor 1

Heated Oxygen Sensor Bank 1 Sensor 2 (HO2S 1/2)

CAUTION
Handle the oxygen sensors carefully in order to prevent damage to the component. Keep the electrical connector and the exhaust inlet end free of contaminants. Do not use cleaning solvents on the sensor. Do not drop or mishandle the sensor.

CAUTION: Remove oxygen sensors with the engine temperature above 48C (120F). Otherwise the oxygen sensors may be difficult to remove.

WARNING: A special anti-seize compound is used on the oxygen sensor threads. New service sensors should already have the compound applied to the threads. Coat the threads of a reused sensor with anti-seize compound P/N 5613695 or equivalent.

11_14_2011_1_40_07_pm.jpg

Fig. Showing the location of the HO2S Bank 1 Sensor 2

Raise and support the vehicle.
Remove the heat shield.
Disconnect the heated oxygen sensor electrical connector.
Remove the heated oxygen sensor.

To install:

Install the heated oxygen sensor. Tighten the heated oxygen sensor (HO2S) to 41 Nm (30 ft. lbs.).
Connect the heated oxygen sensor electrical connector. CAUTION
Ensure connectors are securely installed beneath harness heat shield to prevent damage.
Install the heat shield.
Lower the vehicle.


Heated Oxygen Sensor Bank 2 Sensor 1 (HO2S 2/1)

CAUTION: Handle the oxygen sensors carefully in order to prevent damage to the component. Keep the electrical connector and the exhaust inlet end free of contaminants. Do not use cleaning solvents on the sensor. Do not drop or mishandle the sensor.

CAUTION: Remove oxygen sensors with the engine temperature above 48C (120F). Otherwise the oxygen sensors may be difficult to remove.

WARNING: A special anti-seize compound is used on the oxygen sensor threads. New service sensors should already have the compound applied to the threads. Coat the threads of a reused sensor with anti-seize compound P/N 5613695 or equivalent.

Raise and support the vehicle.
Remove the air deflector.
Disconnect the front oxygen sensor electrical connector.
Remove the front oxygen sensor from the front exhaust manifold.

11_14_2011_1_37_39_pm.jpg

Fig. Showing the location of the HO2S Bank 2 Sensor 1

To install:
Install the front oxygen sensor in the front exhaust manifold. Tighten the front HO2S sensor to 41 Nm (30 ft. lbs.).
Connect the front oxygen sensor electrical connector.
Install the air deflector.
Lower the vehicle.

Hope this helps; also keep in mind that your feedback is important and I'll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using Fixya, and have a nice day.

Oct 12, 2011 | Cars & Trucks

1 Answer

Need to replace oxygen sensor


TO REPLACE OXYGEN YOU NEED A SLOTTED SOCKET AND A TUBE ANTI SEIZE COMPOUND. MOST OF THE TIME NEW OXYGEN SENSOR ALREADY HAS ANTI SEIZE COMPOUND USED ON THE THREADS.TO REPLACE OXYGEN SENSOR FIRST CRANK VECHICLE FOR A FEW MINUTES SO YOU CAN REMOVE OXYGEN SENSOR MORE EASILY. ONCE YOU GET THE EXHAUST LITTLE WARM.YOU DISCONNECT OXYGEN SENSOR CONNECTOR TAKE SLOTTED SOCKET REMOVE OXYGEN SENSOR APPLY ANTI SEIZE ON OXYGEN SENSOR THREADS THE SCREW IT IN PLACE..WEAR LONG SLEEVES COVERALLS, SAFETY GLASSES KEEP RUST PARTICLES GETTING INTO YOUR EYES. AND LEATHER GLOVES KEEP HANDS FROM CUTS AND EXHAUST BURNS. IF YOU REPLACING DOWN STREAM OXYGEN SENSOR YOU HAVE TO RAISE VECHICLE SUPPORT ON JACKSTANDS. FOR UP STREAM OXYGEN SENSOR YOU CAN REPLACE WITHOUT RAISING THE VECHICLE.REASON I SAY CRANK ENGINE TO WARM UP EXHAUST SYSTEM BECAUSE METAL EXPANDS WHEN HOT THAT MAKES REMOVING OXYGEN SENSOR EASIER. IF YOU DONT CRANK VECHICLE THE COLD CAUSES METAL TO SHRINK MAKING HARDER TO REMOVE OXYGEN SENSOR.POSSIBLY DAMAGING SENSOR THREADS WHILE TRYING TO LOOSEN SENSOR FROM EXHAUST MANIFOLD OR PIPE. YOU CAN BUY SLOTTED SOCKET AND ANTI SEIZE COMPOUND AT ANY AUTO PARTS STORES.

Dec 30, 2010 | 1998 Lexus ES 300

1 Answer

Have a oxygen sencor and dont know were to put it in at thanks....


WELL WHICH OXYGEN YOU REPLACING THE UPSTREAM OXYGEN SENSOR MOUNTED IN EXHAUST MANIFOLD AND THE DOWN STREAM OXYGEN SENSOR LOCATED IN THE EXHAUST SYSTEM AFTER THE CATALYTIC CONVERTER .YOU NEED A OXYGEN SENSOR SOCKET TO REMOVE IT.TO REMOVE OXYGEN SENSOR CRANK VECHICLE TO GET OXYGEN SENSOR HOT BECAUSE HARD TO REMOVE WHEN COLD.BECAREFUL DONT GET BURN ON EXHAUST MANIFOLD WHEN REMOVING OXYGEN SENSOR.AND WHEN INSTALLING NEW OXYGEN SENSOR USE ANTI SEIZE COMPOUND ON SENSOR THREADS.BUT MOST OF THE TIME NEW SENSOR WILL HAVE ANTI SEIZE COMPOUND ON IT.

Dec 08, 2010 | 2002 Jaguar S-Type

1 Answer

I have a 07 f150 4.6L V8 and I need to replace the Bank 1 sensor 1 oxygen sensor but cant figure out which sensor it is since there are 4 sensors. Where can I find a picture of the location?


Heated Oxygen Sensor (HO2S)- The Bank 1 Sensor 1 tells me that it's an upstream O2 sensor. The larger the number the further down the line of the exhaust it is. Removal & Installation 4.2L Engine ford-04-42-2750.gif
To Remove:
  1. Raise and safely support vehicle.
  2. Disconnect battery ground cable.
  3. Detach electrical connector from right inner fender splash shield (if necessary).
  4. Remove right inner fender splash shield (if necessary).
  5. Disconnect heated oxygen sensor electrical connector.
  6. Remove heated oxygen sensor.
To Install:
  1. Apply anti-seize lubricant to heated oxygen sensor threads.
  2. Install heated oxygen sensor. Torque to: 34 ft-lbs (46 Nm)
  3. Connect heated oxygen sensor electrical connector.
  4. Install right inner fender splash shield (if necessary).
  5. Attach electrical connector to right inner fender splash shield (if necessary).
  6. Connect battery ground cable.
  7. Lower vehicle.
4.6L and 5.4L Engines ford-04-46-2751.gif
To Remove:
  1. Raise and safely support vehicle.
  2. Disconnect battery ground cable.
  3. Disconnect heated oxygen sensor electrical connector.
  4. Remove heated oxygen sensor.
To Install:
  1. Apply anti-seize lubricant to heated oxygen sensor threads.
  2. Install heated oxygen sensor. Torque to: 34 ft-lbs (46 Nm)
  3. Connect heated oxygen sensor electrical connector.
  4. Connect battery ground cable.
  5. Lower vehicle.

Nov 07, 2010 | Ford F-150 Cars & Trucks

1 Answer

How many o2 sensors are on a 1995 monte carlo


REMOVAL & INSTALLATION Fig. 1: The oxygen sensor is threaded into the exhaust manifold — 2.2L engine 88004g45.gif
Fig. 2: View of the oxygen sensor mounting — 2.3L engine 88004g49.gif
Fig. 3: Oxygen sensor location — 2.5L engine 88004g46.gif
Fig. 4: Heated Oxygen Sensor (HO2S) location — 1995 3.1L engine shown 88004g47.gif
Fig. 5: Oxygen sensor location — 3.4L engine shown 88004g48.gif
Fig. 6: This 3.8L engine has one HO2S mounted on the exhaust manifold . . . 88004g51.gif
Fig. 7: . . . and a second HO2S mounted after the catalytic converter 88004g50.gif
WARNING
The sensor uses a permanently attached pigtail and connector. This pigtail should not be removed from the sensor. Damage or removal of the pigtail or connector could affect the proper operation of the sensor. Keep the electrical connector and louvered end of the sensor clean and free of grease. NEVER use cleaning solvents of any type on the sensor! NOTE: The oxygen sensor may be difficult to remove when the temperature of the engine is below 120°F (49°C). Excessive force may damage the threads in the exhaust manifold or exhaust pipe.
  1. Disconnect the negative battery cable.
  2. For 3.1L engines, unbolt the coolant recovery reservoir (do not disconnect the hoses) and position aside. Unfasten the engine torque strut bolt, then rotate the engine forward.
  3. If necessary for access, raise and safely support the vehicle, remove the intermediate pipe and heat shield.
  4. Unplug the electrical connector and any attaching hardware. NOTE: Some late model vehicles utilize two oxygen sensors.
  5. Remove the sensor from the vehicle. For some vehicles, it may be necessary to use tool J 29533/BT-8127 or equivalent to remove the sensor. To install:
  6. Coat the threads of the sensor with a GM anti-seize compound, part number 5613695, or its equivalent, before installation. New sensors are pre-coated with this compound. NOTE: The GM anti-seize compound is NOT a conventional anti-seize paste. The use of a regular paste may electrically insulate the sensor, rendering it useless. The threads MUST be coated with the proper electrically conductive anti-seize compound.
  7. Install the sensor and tighten to 30 ft. lbs. (40 Nm). Use care in making sure the silicone boot is in the correct position to avoid melting it during operation.
  8. Engage the electrical connector.
  9. If necessary, install the heat shield, attach the intermediate pipe, then carefully lower the vehicle.
  10. On 3.1L engines, rotate the engine back to its original position, then install the torque strut bolt. Position and fasten the coolant recovery reservoir.
  11. Connect the negative battery cable.
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Sep 13, 2010 | 1995 Chevrolet Monte Carlo

1 Answer

O2 sensor bank1 sensor 1 where is it located on 2004 Dodge Caravan


prev.gif next.gif Oxygen Sensor I think that bank1 sensor1 stands for the upstream o2 sensor vs. the sensor2 which is the downstream o2 sensor. Both the 4 cyl. and 6 cyl. employ 2 o2 sensors.

If you get it wrong, changing both might be a good idea.
Removal & Installation 2.4L Engine NOTE: These engines use 2 heated oxygen sensors.
Upstream HO2S1 To Remove:
NOTE: If the engine temperature is lower than 120 °F (48 °C), the HO2S1 sensor may be difficult to remove. Excessive force could possibly damage the threads in the exhaust manifold.
  1. Disconnect the negative battery cable.
  2. Raise and safely support the vehicle.
  3. Disconnect the electrical connector from the sensor.
  4. Using an oxygen sensor removal tool carefully remove the heated oxygen sensor.
To Install:
  1. Clean the threads in the exhaust manifold with an 18 mm X 1.5 + 6E tap.
  2. If reusing the original sensor, coat the sensor threads with an anti-seize compound. New sensors come treated with anti-seize compound on the threads and do not require an additional coating.
  3. Install and tighten the sensor 20 ft. lbs. (27 Nm).
  4. Connect the electrical connector and install the wiring on the bracket.
  5. Lower the vehicle.
  6. Connect the negative battery cable.
Downstream HO2S2 To Remove:
NOTE: If the engine temperature is lower than 120 °F (48 °C), the HO2S 2 sensor may be difficult to remove. Excessive force could possibly damage the threads in the exhaust pipe.
  1. Disconnect the negative battery cable.
  2. Raise and safely support the vehicle.
  3. Disconnect the electrical connector from the oxygen sensor.
  4. Use an oxygen sensor socket to remove the sensor from the catalytic converter.
To Install:
  1. If reusing the original sensor, coat the sensor threads with an anti-seize compound. New sensors come treated with anti-seize compound on the threads and do not require an additional coating.
  2. Install and tighten the sensor 20 ft. lbs. (27 Nm).
  3. Connect the electrical connector to the sensor.
  4. Lower the vehicle.
  5. Connect the negative battery cable.
3.3L & 3.8L Engines NOTE: These engines use 2 heated oxygen sensors.
Upstream HO2S1 To Remove:
NOTE: If the engine temperature is lower than 120 °F (48 °C), the HO2S1 sensor may be difficult to remove. Excessive force could possibly damage the threads in the exhaust manifold.
  1. Remove the battery and battery tray.
  2. Disconnect the speed control vacuum harness from servo.
  3. Remove the cruise control servo and bracket. Place it out of the way.
  4. Disconnect the electrical connector from the oxygen sensor.
  5. Use an oxygen sensor socket to remove the sensor.
To Install:
  1. Clean the threads in the exhaust manifold with an 18 mm X 1.5 + 6E tap.
  2. If reusing the original sensor, coat the sensor threads with an anti-seize compound. New sensors come treated with anti-seize compound on the threads and do not require an additional coating.
  3. Install and tighten the sensor 20 ft. lbs. (27 Nm).
  4. Connect the electrical connector to the sensor and install the sensor on the bracket.
  5. Install the cruise control servo.
  6. Install the battery tray and battery.
Downstream HO2S2 To Remove:
NOTE: If the engine temperature is lower than 120 °F (48 °C), the HO2S 2 sensor may be difficult to remove. Excessive force could possibly damage the threads in the exhaust pipe.
  1. Disconnect the negative battery cable.
  2. Raise and safely support the vehicle.
  3. Disconnect the electrical connector from the oxygen sensor.
  4. Use an oxygen sensor socket to remove the sensor from the catalytic converter.
To Install:
  1. If reusing the original sensor, coat the sensor threads with an anti-seize compound. New sensors come treated with anti-seize compound on the threads and do not require an additional coating.
  2. Install and tighten the sensor 20 ft. lbs. (27 Nm).
  3. Connect the electrical connector to the sensor.
  4. Lower the vehicle.
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Jul 31, 2010 | 2004 Dodge Caravan

1 Answer

2004 hyundai elantra oxygen sensor


Your Elantra has more than one oxygen sensor. There is a pre-catalyst sensor and a post-catalyst sensor. Both can be found on the exhaust. You simply disconnect the sensor wire and remove the sensor plug with the proper size deep socket. Be sure you have the correct sensor for replacement.

Because of the heat involved with the exhaust, make sure the engine is cool before attempting to remove and replace the sensors. They may be tough to remove so a shot of WD-40 or 5-56 spray may need to soak into the threads to ease removal. When you replace the new sensors, a coating of anti-seize will be helpful for future removal.

Keep in mind that one malfunctioning sensor can send information that will set off codes on other sensors "downstream" or send codes from other emission controls on the engine.

Mar 27, 2010 | 2004 Hyundai Elantra

1 Answer

How to replace oxygen sencer for 2006 saturn ion


Installation Removal & Installation
  1. Remove the heat shield.
  2. Note the routing of the Heated Oxygen Sensor (HO2S) electrical harness.
  3. Disconnect the HO2S electrical connector.
  4. Using a suitable Oxygen sensor socket remove the sensor.
To install:

NOTE A special anti-seize compound is used on the HO2S threads. The compound consists of a liquid graphite and glass beads. The graphite will burn away but the glass beads will remain, making the sensor easier to remove. New or service sensors already have the compound applied to the threads. If the sensor is removed and is to be reinstalled, the threads must be coated with an anti-seize compound before reinstallation.

  1. If reinstalling the old HO2S, coat the threads with anti-seize compound.
  2. Carefully install the HO2S to the pipe. Tighten the sensor to 22 ft. lbs. (30 Nm) on the sensor located at exhaust manifold, or 30 ft. lbs. (41 Nm) for the rear oxygen sensor.
  3. Attach the sensor electrical connections.

Oct 08, 2009 | 2006 Saturn ION

1 Answer

Where's my O2 sensor located


Heated Oxygen Sensor (HO2S) SPECIAL SERVICE TOOL(S) REQUIRED Description Tool Number Oxygen Sensor Wrench T94L-9472-A
Removal and Installation
NOTE: If excessive force is needed to remove heated oxygen sensor (HO2S) (9F472) , lubricate heated oxygen sensor with penetrating oil prior to removal.
  1. Disconnect battery ground cable (14301) .
  1. Disconnect heated oxygen sensors from engine control sensor wiring (12A581) .
  1. Raise vehicle on hoist. Refer to Section 00-02 .
  1. Remove heated oxygen sensors from dual converter Y pipe (5F250) using Oxygen Sensor Wrench T94L-9472-A.
  1. To install, reverse Removal procedure. Tighten heated oxygen sensors to 36-46 Nm (26-34 lb-ft).

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Feb 22, 2009 | 1994 Ford Thunderbird

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