Question about 2005 Chevrolet TrailBlazer

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How to replace oil pressure sending unit on 2005 trailblazer

4.2 litre 6 cylinder

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 12104 Answers

SOURCE: How difficult is it to replace the oil sending unit?

not hard located at top rear of engine by firewall small black cylinder

Posted on Jan 22, 2010

  • 9 Answers

SOURCE: Code Scan Reads P0455 Evap. Emissions Leak, Large

large leek is usually the gas cap. just had the same problem

Posted on Jul 16, 2009

  • 1608 Answers

SOURCE: diagram for the location of the oil pressure

the oil sending unit is in the rear of the motor center right as you face the motor.You almost have to climb up on the motor to see it because it is down on the block.If you remember where the distributor used to be in the rear.The sending unit is just to the right as you face the motor.Good luck.

Posted on Nov 18, 2009

bschilz
  • 2049 Answers

SOURCE: Where is oil sending unit on 2003 Chevy Avalanche

It's at the very back of the block, top-center, under the intake manifold.

Posted on Jan 10, 2010

duane_wong
  • 6826 Answers

SOURCE: where is the oil pressure

Removal & Installation 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.
8.1L Engine To Remove:
  1. Remove the engine appearance cover.
  2. Disconnect the electrical connector from the oil pressure sensor.
  3. Use a special socket such as J 41712 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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Posted on Aug 05, 2010

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1 Answer

2005 chevrolet trailblazer oil pressure sending unit wiring diagram


It depends on litre size of engine? The 5.3 litre has three wires. The 4.2 has two wires.

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2005 jeep grand cherrokee location of oil pressure sending unit switch 4.7 l engine


its next to filter. the sender fits to the main oil gallery
like the filter too.
why not just look at the dealer parts page, find it and see.
the fsm covers this too.
page 4804 (posted many times now)


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I have a 2005 trailblazer. The oil pressure gauge is ffine running around 40-50. When I come to a stop it drops to zero (under 1000rpms) I change the oil last night and it stilldoes this


The correct way of checking this is to put a mechanical test gauge on the engine and check the actual oil pressure. (your gauge is electro mechanical and it could have a "dead spot" in it.) However, if you don't have a test gauge, buying one or having a shop test it will cost you far more than the actual sending unit would. Therefore, providing that the engine isn't knocking or tapping while the gauge reads "0" ( which would indicate that the pressure was indeed low) I'd suggest that you replace the sending unit and see if it corrects the problem. The unit generally costs around $25.

Jun 23, 2011 | 2005 Chevrolet TrailBlazer

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WHERE IS THE OIL PRESSURE SENSOR on a 2002 ford escape


On 4 cylinder engines: The oil pressure sending unit is located in the rear of the block near the oil filter housing
On 6 cylinder engines: Sending unit is located near the oil filter housing behind the air conditioning compressor, on the front side of the block

Dec 22, 2010 | 2002 Ford Escape

2 Answers

Oil pressure at 0 on 2005 trailblazer


It sure sounds like the oil sending unit is at fault,now sometimes,not always,the oil sending unit will seep oil or leak oil if they go bad,but like I said,not always,change the unit,and the oil and filter just for precaution.

Apr 21, 2010 | 2005 Chevrolet TrailBlazer

3 Answers

I have a 2005 trailblazer. I got my oil changed


Could be either a gauge gone bad, or the sending unit. Unplug the oil sending unit with key on to see what the gauge does.

Nov 08, 2009 | 2005 Chevrolet TrailBlazer

2 Answers

The oil gage on my 2005 chevy trailbaizer is starting to act up sometimes by reading zero. The truck has 87000 miles is this something that can be fixed? I checked the dipstick and I have plenty of oil??


Most likely the oil pressure sending unit is going bad or has a loose connection,but it would be safe to have a manual oil pressure test done to be sure it's not a problem with the oil pump.

Jun 22, 2009 | 2005 Chevrolet TrailBlazer

1 Answer

2005 trail blazer with oil pressure over "80".


you may have too much oil in the truck drain it and put in5 quarts of 40 weight oil

Dec 25, 2008 | 2005 Chevrolet TrailBlazer

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