Question about 1995 Chevrolet Monte Carlo

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How many o2 sensors are on a 1995 monte carlo

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REMOVAL & INSTALLATION Fig. 1: The oxygen sensor is threaded into the exhaust manifold — 2.2L engine how many o2 sensors are on a 1995 monte carlo - 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 shownhow many o2 sensors are on a 1995 monte carlo - 88004g47.gif">88004g47.gif
Fihow many o2 sensors are on a 1995 monte carlo - 88004g48.gif sensor location — 3.4L engine shown 88004g48.gif88004g51.gif
Fig. 7: . . . and a second HO2S mounted after the catalytic converter 88004g50.gif
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 enghow many o2 sensors are on a 1995 monte carlo - prev.giftate the engine back to its original position, then install the torque strut bolt. Position and fasten the coolant recohow many o2 sensors are on a 1995 monte carlo - next.gifervoir.
  11. Connect the negative battery cable.
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Posted on Sep 13, 2010

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