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Where is oil pressure sensor on the engine - 2003 Hummer H2

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It is on the left rear of the engine, Behind the intake and is difficult to get to. It is the same as older models. Just as i said more difficult to get to. If you need further assistance please let me know. thanks, Midwest-tek

Posted on Aug 31, 2010

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Need to know where the fuse is for oil sending unit on a 1998 Buick Park Avenue with a 3800 v6


There is no fuse for the oil sending unit ! Oil lite on , gauge not working ? Do you know what PCM five volt reference voltage is ? The PCM - engine computer supply's a stable 5 volt voltage to engine sensors . The oil pressure sensor is one of these sensors .
Engine Oil Pressure Sensor
The engine oil pressure sensor is a solid state transducer. The engine oil pressure sensor sends oil pressure information to the PCM. The PCM then transmits the oil pressure information to the IPC via serial data.
Engine oil pressure is displayed on the scan tool in volts. A low voltage reading indicates low oil pressure. As the oil pressure increases, the voltage level also increases. The normal range of the engine oil level sensor signal voltage is 0.5 volts at 0 kPa (0 psi) to 4.5 volts at 883 kPa (128 psi).

Jul 02, 2017 | Buick Cars & Trucks

1 Answer

Po521 code on a 2010 Camaro ss


Possible causes
- Low oil level or motor mechanical fault
- Faulty oil pressure sensor
- Oil Pressure Sensor harness is open or shorted
- Oil Pressure Sensor circuit poor electrical connection

When is the code detected?
The P0521 is detected when the signal sent from oil pressure sensor to PCM goes out of range.
Possible symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Oil pressure warning light ON.
P0521 Chevrolet Description
The PCM continuously monitors the engine oil pressure. The Oil Pressure Sensor/Switch sends a signal to the PCM when the engine is running.

Oct 30, 2013 | 2006 Jeep Commander Limited

1 Answer

NEW CODE ON 2005 CHYSLER 300 0520 CAN NOT FIND WHY THIS CODE KEEPS COMING ON


Hi there:
DTC P0520 Engine Oil Pressure Sensor/Switch Circuit Malfunction

If you decide to replace it and the code returns once cleared.....then you will need to run the entire test for this code:
3_13_2012_4_18_24_pm.gif
Zoom link HERE
For a complete wiring diagram Refer to Section 8W.When Monitored:Ignition on, engine not running.Set Condition:The PCM senses the oil pressure is out of the calibrated range.Possible Causes(G6) ENGINE OIL PRESSURE SENSOR SIGNAL CIRCUIT SHORTED TO BATTERY VOLTAGERESISTANCE (G6) ENGINE OIL PRESSURE SENSOR SIGNAL CIRCUIT(G6) ENGINE OIL PRESSURE SENSOR SIGNAL CIRCUIT SHORTED TO GROUNDRESISTANCE IN (F856) 5-VOLT SUPPLY CIRCUIT(F856) 5-VOLT SUPPLY CIRCUIT SHORTED TO GROUNDRESISTANCE IN THE (K900) SENSOR GROUND CIRCUITENGINE OIL PRESSURE SENSORPCMAlways perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Diagnostic Test1. ACTIVE DTC NOTE: Ensure that the engine oil is at the proper level. Also, check the customers oil change history to ensure that the oil is being changed at the correct intervals and that the proper oil viscosity is being used.
Ignition on, engine not running.With a scan tool, read DTCs.Is the DTC active at this time?YesGo To 2
NoRefer to the INTERMITTENT CONDITION Diagnostic Procedure.


2. (G6) ENGINE OIL PRESSURE SENSOR SIGNAL CIRCUIT SHORTED TO BATTERY VOLTAGE
3_13_2012_4_19_33_pm.gif
Turn the ignition off.Disconnect the PCM harness connectors.Disconnect the Engine Oil Pressure Sensor harness connector. Ignition on, engine not running.Measure the voltage on the (G6) Engine Oil Pressure Signal circuit in the Engine Oil Pressure Sensor harness connector.Is the voltage above 0 volts?YesRepair the short to battery voltage in the (G6) Engine Oil Pressure Signal circuit.
NoGo To 3

3. ENGINE OIL PRESSURE SENSOR
3_13_2012_4_20_03_pm.gif
Turn the ignition off.Connect the PCM harness connectors.Ignition on, engine not running.With a scan tool, monitor the Engine Oil Pressure Sensor voltage. Connect a jumper wire between the (K900) Sensor Ground circuit and the (G6) Engine Oil Pressure Signal circuit.NOTE: Engine Oil Pressure voltage should change from approximately 4.5 volts to less than 0.5 of a volt.Is the voltage reading within the listed specification when the jumper wire is installed?YesReplace the Engine Oil Pressure Sensor.
NoGo To 4NOTE: Remove the jumper wire before continuing.

4. EXCESSIVE RESISTANCE IN THE (G6) ENGINE OIL PRESSURE SIGNAL CIRCUIT
3_13_2012_4_20_33_pm.gif
Turn the ignition off.Disconnect the PCM harness connectors.CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install Miller Special Tool #8815 to perform diagnosis.
Measure the resistance of the (G6) Engine Oil Pressure Signal circuit from the Engine Oil Pressure Sensor harness connector to the appropriate terminal of special tool #8815.Is the resistance below 5.0 ohms for each circuit?YesGo To 5
NoRepair the excessive resistance in the (G6) Engine Oil Pressure Signal circuit.


5. (G6) ENGINE OIL PRESSURE SIGNAL CIRCUIT SHORTED TO GROUND
3_13_2012_4_20_55_pm.gif

Measure the resistance between ground and the (G6) Engine Oil Pressure Signal circuit Engine Oil Pressure Sensor harness connector.Is the resistance below 100 ohms?YesRepair the short to ground in the (G6) Engine Oil Pressure Signal circuit.
NoGo To 6

6. EXCESSIVE RESISTANCE IN THE (F856) 5-VOLT SUPPLY CIRCUIT
3_13_2012_4_21_24_pm.gif
Measure the resistance of the (F856) 5-volt Supply circuit from the Engine Oil Pressure Sensor harness connector to the appropriate terminal of special tool #8815.Is the resistance below 5.0 ohms?YesGo To 7
NoRepair the excessive resistance in the (F856) 5-volt Supply circuit.

7. (F856) 5-VOLT SUPPLY SHORTED TO GROUND
3_13_2012_4_21_54_pm.gif
Measure the resistance between ground and the (F856) 5-volt Supply circuit in the Engine Oil Pressure Sensor harness connector.Is the resistance below 100 ohms?YesRepair the short to ground in the (F856) 5-volt Supply circuit.Perform the POWERTRAIN VERIFICATION TEST.
NoGo To 8

8. EXCESSIVE RESISTANCE IN THE (K900) SENSOR GROUND CIRCUIT
3_13_2012_4_22_21_pm.gif
Measure the resistance of the (K900) Sensor Ground circuit from the Engine Oil Pressure Sensor harness connector to the appropriate terminal of special tool #8815.Is the resistance below 5.0 ohms?YesGo To 9
NoRepair the excessive resistance in the (K900) Sensor Ground circuit.Perform the POWERTRAIN VERIFICATION TEST.

9. PCMNOTE: Before continuing, check the PCM harness connector terminals for corrosion, damage, or terminal push out. Repair as necessary.
Using the schematics as a guide, inspect the wire harness and connectors. Pay particular attention to all Power and Ground circuits.Were there any problems found?YesRepair as necessary.Perform the POWERTRAIN VERIFICATION TEST.
NoReplace and program the Powertrain Control Module per Service Information.Perform the POWERTRAIN VERIFICATION TEST.

Hope this helps.

Mar 09, 2012 | 2005 Chrysler 300

1 Answer

Oil sending unit is toast. What is the trick to changing it, besides having very small hands and can see around corners? 2003 gmv v8


Engine Oil Pressure Sensor / Switch Replacement Removal & Installation 4.3L Engine To Remove:
Oil pressure sensor removal/installation (4.3L engine shown) gm-04-43-572.gif

  1. Clean the area near the oil pressure sensor.
  2. Remove the distributor.
  3. Disconnect the electrical connector from the oil pressure sensor.
  4. Using J 41712 or equivalent, remove the oil pressure sensor from the fitting. NOTE: Note the orientation of the oil pressure sensor fitting before attempting to remove it. This is so it can be installed in the original position.
  5. Remove the oil pressure sensor fitting, if necessary.
To Install:
NOTE: If the fitting has been removed, clean and apply sealant to the threads before installing it.
  1. Install the fitting until snug, if it was removed.
    • Tighten the fitting to 11 lb ft (15 Nm). Continue to tighten the fitting until in the original position.
  2. Apply sealant to the threads of the sensor.
    • Install and tighten the sensor to 22 lb ft (30 Nm).
  3. Connect the electrical connector to the oil pressure sensor.
  4. Install the distributor.
  5. Check the engine oil level and adjust if necessary.
4.8L, 5.3L & 6.0L Engine To Remove:
  1. Remove the engine sight shield. chevy_aval15_02-04_opcon.gif

  2. Disconnect the oil pressure sensor electrical connector. chevy_aval15_02-04_opsocket.gif

  3. Using J41712 sensor socket or equivalent, remove the oil pressure sensor.
To Install:
  1. Apply sealant GM P/N 12346004, (Canadian P/N 10953480), or equivalent, to the threads of the sensor.
  2. Using J41712 sensor socket or equivalent, install the oil pressure sensor.
    • Tighten the sensor to 15 ft. lbs. (20 Nm).
  3. Connect the oil pressure sensor electrical connector.
  4. Install the engine sight shield.
6.6L Diesel Engine To Remove:
  1. Raise and safely support the vehicle NOTE: Clean the area around the sensor. Do not allow debris to enter the engine
    6.6L Oil pressure sensor gm_trk_sil25_02-04_66_oil_press_sensr.gif

  2. Remove or disconnect the following:
    • Engine oil pressure sensor electrical connector
    • Engine oil pressure sensor using a suitable tool
To Install:
  1. Apply sealant to the threads of the oil pressure sensor
  2. Install or connect the following:
    • Engine oil pressure sensor and tighten the sensor
      1. Torque to: 22 ft. lbs. (30 Nm)
    • Engine oil pressure sensor electrical connector
  3. Lower the vehicle
  4. If required, check and adjust the engine oil level
  5. Test drive the vehicle to confirm the repairs
8.1L Engine To Remove:
  1. Remove the engine appearance cover.
  2. Disconnect the electrical connector from the oil pressure sensor.
  3. to remove the sensor.
To Install:
  1. If installing the old sensor, apply sealant GM P/N 12346004 (Canadian P/N 10953480), or equivalent, to the threads of the sensor.
  2. Using J 41712 or equivalent, install the sensor.
    • Tighten the sensor to 22 lb ft (30 Nm).
  3. Connect the oil pressure sensor electrical connector.
  4. Install the engine appearance cover.
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Sep 18, 2010 | 2003 GMC Sierra 1500

1 Answer

Oil pressure light stays on .engine is running good .why is the light on?


Check the oil pressure sensor and the wiring to it.

Oil Pressure Sensor Removal & Installation 3.4L & 3.5L Engine To Remove:
  1. Disconnect the battery ground cable.
  2. Raise and safely support the vehicle.
  3. Disconnect the electrical connector from the oil pressure sensor. chev_vent_op-sen.gif

  4. Remove the oil pressure sensor from the engine.
To Install:
  1. Install the oil pressure sensor on the engine. Tighten 12 ft-lb (16 Nm).
  2. Connect the oil pressure sensor electrical connector.
  3. Lower the vehicle.
  4. Connect the battery ground cable.
  5. Start the engine and check for leaks.
3.6L Engine To Remove:
  1. Disconnect the oil pressure sensor electrical connector. Oil pressure sensor 3.6L gm-04-36-2519.gif

  2. Remove the oil pressure sensor.
To Install:
  1. Install the oil pressure sensor. Tighten 15 ft-lb (20 Nm).
  2. Connect the oil pressure sensor electrical connector.
  3. Check for leaks.
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Aug 07, 2010 | 2003 Buick Rendezvous

1 Answer

Where is the oil sending unit on a 1996 ford taurus 3.0 liter engine located? glenn


On 3.0L OHV engines, the oil pressure sensor is located on the left side of the engine block above the flywheel. On 3.0L DOHC engines the sensor is located on the left side of the engine block above the oil filter. On 3.4L DOHC engines the sensor is screwed into the oil filter adapter. The oil pressure sensor operates the oil pressure warning lamp.

71f6e37.jpg
Fig. 1: Location of the oil pressure sensor-3.0L OHV engines


046f42b.jpg Fig. 2: Location of the oil pressure sensor-3.0L DOHC engines

69cce3e.jpg

Fig. 3. The oil pressure sensor-3.0L OHV engine

Hope help with this (remember rated this help). Good luck.

Feb 18, 2010 | 1996 Ford Taurus

1 Answer

Instructions to change oil pressure switch GMC denali xl


4.8L, 5.3L, 6.0L & 6.2L Engines
  1. If necessary, remove the engine sight shield.
  2. Disconnect the oil pressure sensor electrical connector.
  3. Using J 41712 or equivalent, remove the oil pressure sensor.

    0996b43f802053c2.jpg enlarge_icon.gifenlarge_tooltip.gif Fig. Using J 41712 or equivalent, remove the oil pressure sensor

To install:
  1. Apply sealant to the threads of the oil pressure sensor.
  2. Using J 41712 or equivalent, install the oil pressure sensor.
    1. Tighten the oil pressure sensor to 26 ft. lbs. (35 Nm).

  3. Connect the oil pressure sensor electrical connector.
  4. If necessary, install the engine sight shield.


Jan 18, 2010 | 2004 Chevrolet Suburban

1 Answer

The oil sensor needs to be replaced where is it


  1. Remove the engine sight shield.
  2. Disconnect the oil pressure sensor electrical connector.
  3. Using J 41712 or equivalent, remove the oil pressure sensor.

    0996b43f802053c4.jpg enlarge_icon.gifenlarge_tooltip.gif Fig. Using J 41712 or equivalent, remove the oil pressure sensor-8.1L engines

To install:
  1. Apply sealant to the threads of the oil pressure sensor.
  2. Using J 41712 or equivalent, install the oil pressure sensor.
    1. Tighten the sensor to 22 ft. lbs. (30 Nm).

  3. Connect the oil pressure sensor electrical connector.
  4. Install the engine sight shield.

Nov 15, 2009 | 2001 Chevrolet Silverado 2500HD

1 Answer

Oil sensor replacement for 2006 GTO


COST Around $25 - $35 and Fallow these Instructions PLEASE RATE ME!!!!!

Engine Oil Pressure Sensor and/or Switch Replacement

Tools Required
  • J41712 Oil Pressure Switch Socket
Removal Procedure
Disconnect the oil pressure sensor electrical connector (1).
  1. Important: Clean the area around the sensor before removal. This prevents debris from entering the engine. Use J41712 to remove the oil pressure sensor from the engine block.
Installation Procedure
  1. If installing the old sensor, apply thread sealant GM P/N 12346004, (Canadian P/N 1093480), or equivalent. Notice: Refer to Fastener Notice in Service Precautions.
  2. Use to install the J41712 oil pressure sensor to the engine block. Tighten the engine oil pressure sensor to 35 Nm (26 ft. lbs.) .Connect the oil pressure sensor electrical connector (1).

Oct 04, 2009 | 2006 Pontiac GTO

1 Answer

Where is the oil sending unit on a 2001 4.3 liter vortec v6


ENGINE OIL PRESSURE SENSOR OR SWITCH REPLACEMENT

TOOLS REQUIRED
J 41712 Oil Pressure Switch Socket

REMOVAL PROCEDURE

IMPORTANT: Clean the area around the sensor and Distributor before removal. Do not allow debris to enter the engine.

89348473

  1. Remove the distributor.
  2. Disconnect the engine oil pressure sensor electrical connector.
  3. Remove the engine oil pressure sensor using the J 41712. IMPORTANT: Note the alignment of the engine oil pressure sensor fitting prior to removal.
89348474

  1. Remove the engine oil pressure sensor fitting, if necessary.
INSTALLATION PROCEDURE

89348474

  1. Apply sealant GM P/N 12346004 or equivalent to the threads of the fitting and/or the engine oil pressure sensor. NOTE: Refer to Fastener Notice in Service Precautions.
  2. Install the engine oil pressure sensor fitting, if removed. Tighten Tighten the engine oil pressure sensor fitting to 15 N.m (11 lb ft) .
89348473

  1. Install the engine oil pressure sensor. Tighten Using the J 41712, tighten the engine oil pressure sensor to 30 N.m (22 lb ft) .
  2. Connect the engine oil pressure sensor electrical connector.
  3. Install the distributor.
  4. Check and adjust engine oil level.

Jun 05, 2009 | 2001 Chevrolet Blazer

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