Question about 1995 Chevrolet Blazer

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Knock sensor 95 chevy blazer

What would be the tightening instructions be? And would lock-tite be a suitable sealant

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Use liquid teflon, no LOCTITE! Tighten to around 8-10 ft lb's

Posted on Aug 04, 2008

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2 Answers

Is it possible for me to replace the oil sensor switch on my 2000 catera and if so how?


Yes, the sensor is usually near the oil filter. It takes a big deep well socket. 19 or 21mm, something like that. I have pasted the procedure below. The sensor looks like the picture below.
Please let me know if you have more questions, and thanks for using FixYa.

jturcotte_406.jpg
  1. Raise and suitably support the vehicle.
  2. Remove the 4 splash shield bolts.
  3. Remove the splash shield.
  4. Disconnect the electrical connector from the oil pressure sensor/switch.
  5. Remove the oil pressure sensor/switch.
    NOTE Use a catch basin to catch escaping oil.
To install:

NOTE Replacement components must be the correct part number for the application. Components requiring the use of the thread locking compound, lubricants, corrosion inhibitors, or sealants are identified in the service procedure. Some replacement components may come with these coatings already applied. Do not use these coatings on components unless specified. These coatings can affect the final torque, which may affect the operation of the component. Use the correct torque specification when installing components in order to avoid damage.
  1. Install the oil pressure sensor/switch. Tighten to 30ft.lbs. (40 Nm).
  2. Connect the electrical connector to the oil pressure sensor/switch.
  3. Install the splash shield.
  4. Install the 4 splash shield bolts and tighten the splash shield screws until fully seated, do not over tighten.
  5. Lower the vehicle.

Apr 12, 2011 | 2000 Cadillac Catera

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

Trying to remove oil pan from 1989 chevy 1500 350 eng to replace the gasket can you help me?


2wd Models
  1. Disconnect the negative battery cable. Drain the engine oil.
  2. Remove the oil dipstick.
  3. If necessary remove the exhaust pipe crossover.
  4. If equipped with automatic transmission, remove the converter housing pan and the transmission oil cooler line retainer from the bracket.
  5. On 1996-98 models, remove the oil filter and if equipped, the oil filter adapter.
  6. If necessary, remove the starter brace and bolt and swing the starter aside.
  7. Remove the strut rods, if equipped.
  8. Remove the oil pan and discard the gaskets.
To install:
  1. Apply a suitable sealant such as GM part number 12346192 or its equivalent to the front cover-to-block joint and to the rear crankshaft seal-to-block joint. Apply the sealant about 1 inch (25mm) in both directions from each of the four corners.
  2. Clean all gasket surfaces and use new gaskets to assemble.
  3. Install new gasket and seals.
  4. Install the oil pan.
  5. On 1988-95 models, tighten the pan bolts to 100 inch lbs. (11 Nm). Tighten the pan nuts to 17 ft. lbs. (23 Nm).
  6. On 1996-98 models, tighten the oil pan nuts and bolts to 18 ft. lbs. (25 Nm).
  7. Install the strut rods, if equipped.
  8. If removed, install starter, starter brace and bolt.
  9. If equipped, install the oil filter adapter.
  10. If removed, install the oil filter.
  11. If equipped with automatic transmission, install the converter housing pan and the transmission oil cooler line retainer to the bracket.
  12. Install the exhaust pipe crossover.
  13. Install the oil dipstick.
  14. Fill the engine with oil and check for leaks.

Aug 07, 2010 | 1989 Chevrolet S-10 Blazer

1 Answer

The oil pan had dents in it so a friend took it off and now i have to figure out how to put it back n its a 94 or 99 chevy blazer


if the motor is still jacked up, you are in luck...as you know it'll only fir one way...some people use a new gasket and rv sealant, letting it /gasket compound (in a tube) and some just use a good bead of rv sealant on only the pan, allowing it to "set up" a bit-maybe semi firm before placing it on the engine block...don't forget to clean all surfaces good---don't overtighten the bolts and do alternate the sequence of tightening....check out autozone.com repair guide for pics and good instructions....hope you find this helpful

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1 Answer

1999 chevy silerado rear pinion, took yoke off did'nt mark nut


If your just replacing seal and bearing just tighten back till same amount of threads showing,use LOCK TITE on threads.

Feb 28, 2010 | 1999 Chevrolet Silverado 1500

2 Answers

Instalation diagram for a knock sensor


The knock sensors there are two of them.
They are under the intake in the middle of the block on the Vally pan, hard to miss them when intake is off. You need new intake gaskets when installing intake again. You should use new intake bolts but if use LOCK TITE on old bolts you should be OK.
Tighten bolts first pass to 44 lb in then a final pass of 89 lb in. ( lb in NOT lb ft
Knock sensors to 15 lb ft..

Feb 22, 2010 | 2002 Chevrolet Silverado 2500HD

3 Answers

How much will it cost for a mechanic to change oil pan gasket on my 1998 chevy blazer 4wd big v6 engine?


Gasket = $35 (permatex rubber)
Labor - my manual says 3 hours.
You'll have to be responsible for figuring out the labor price per hour depending on where you are located.
In MI, a garage is about $50/hr, and dealership = $85/hr
CA might be $95/$150/hr.

Parts are minimal on the job - its all labor.
Figure in about $20 for shop supplies... gasket remover, sealant, rags, etc.

Thanks for using FixYa - a FixYa rating is appreciated for answering your FREE question.

Jun 02, 2009 | 1998 Chevrolet Blazer

1 Answer

Need how to and location to replace knock sensor


Im looking for the same part location on a 2002 chevy blazer. It might be under the distributer cap.

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Engine swap


95-94-93 4.3 vortec are compatable engines. 97 4.3 will fit but will have problems with sensors and computer

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1 Answer

I have a 95 chevy blazer with the 4.3 vortec. It has a knock sensor and temp sensor on the right side of the engine and I cant remember which one goes in the top hole and which one goes in the bottom hole....


The knock sensor will go to the lower hole, make sure you follow tightening instructions or it will no function correctly. Put a liquid sealant on threads, don't use tape.

Aug 04, 2008 | Chevrolet Blazer Cars & Trucks

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