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Knock sensor tightening spec - Cars & Trucks

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Posted on Jan 02, 2017

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SOURCE: 2004 Chevrolet HD 6L VORTEC: Replaced the knock

the torque spec is 15 ft lbs. hope this helps. Thanks Ray

Posted on Nov 12, 2009

Testimonial: "Thanks a million Ray, u saved ALOT of aggravation of WAITING until working hours to find out this info... Thanks again... Shauna"

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1 Answer

2000 pontiac 3.8 knock sensor tightening spec


The knock sensor torque specification for the 3800 series II is 14 Ft-Lbs, or 168 In-Lbs. Hope this helps.

May 09, 2017 | Pontiac Cars & Trucks

1 Answer

What is the Torque Spec for a Knock Sensor on a 1999 Chevrolet 1500 Silverado?


Save yourself some time and just tighten the sensor until it is tight and don't over tighten it but just turn it tight. Once it is in run the truck and make sure it is not leaking.

Jun 29, 2014 | 1999 Chevrolet Silverado 1500

1 Answer

How do i change a knock sensor on a 1997 Nissan Altima?


Inspect/Test/Replace


A defective knock sensor may cause engine detonation or reduced spark advance and fuel economy. When a knock sensor is removed and replaced, the sensor must be tightened to its specified torque. If the knock sensor is installed tighter than it should be, it may become too sensitive and provide an excessively high voltage signal, resulting in more spark retard than required. When the knock sensor is installed looser than it should be, the knock sensor signal will be lower than normal, resulting in engine detonation.

To replace the knock sensor:


  • Disconnect the knock sensor wiring connector.

  • Then, unscrew the sensor.

  • Remove the knock sensor.

  • Reverse the procedures to install the part.

Mar 16, 2013 | Nissan Altima Cars & Trucks

1 Answer

PO325 Knock Sensor i circuit (Bank) What can I do to solve this problem


you can try this
Check the resistance of the knock sensor (compare it to factory specs)
Check for broken/frayed wires leading to the sensor
Replace the knock sensor

Jul 26, 2011 | Toyota Corolla Cars & Trucks

1 Answer

Why does my car throw the code P0100 and P0325? I have a 1995 Nissan 240sx. and it has a random misfire once in a while.


Hi,

Often a single issue can trigger multiple diagnostics codes, especially if the circuits are closely related.

Code P0100 = Mass Air Flow (MAF) Circuit malfunction

The computer has detected an issue with the MAF sensor.

- Verify the MAF sensor wiring is connected and wiring is in good condition
- Unplug and reconnect the MAF harness
- Check that voltage to the MAF sensor is within factory spec


Code P0325 = Knock Sensor # 1 Circuit malfunction

A knock sensor tells the engine computer when one or more of your engine's cylinders are "knocking", that is, exploding the air/fuel mixture in a way that delivers less power and can be damaging to the engine if prolonged. The computer uses this information to tune the engine so that it doesn't knock. If your knock sensor wasn't operating properly, so that it was always indicating a knock, the engine computer's response may have been to change the ignition timing on your engine. Knock sensors generally bolt into or thread into the engine block.

- Check condition of the knock sensor wiring.
- Test the 'Ohms' reading of your Knock Sensor (undo the connector and measure the pins) to ensure it is within spec (ask Nissan for this measurement). If out of spec, replace the knock sensor.

Cheers,


"If this solution resolves your issue, please be kind enough to leave a testimonial"


Jun 08, 2011 | Nissan 240SX Cars & Trucks

2 Answers

Steps to replace a knock Sensors?


I had to do this last summer. First I went to Advanced Auto. They
read the code for me. One of them was bad, but I went ahead and
replaced both. I purchased a manual for the steps, two knock sensors
and a gasket set. About 170 dollars total. You will also need a torq
wrench in inch pounds. Take your time, keep it clean. Make sure
you clean the manifold and engine head surfaces where the gasket
seats. Use a non metallic scraper, and if need be solvent to loosen
any old gasket material. I found that laying saturated rags on the
head surface and leaving them set a few hours helped the most.
You can also get the steps and torque specs from either Advance
auto or Auto Zone(then you don't need the manual).
Use patience when tightening the manifold bolts, you should
torque them in the sequence given(in the manual or online) and
you have to do it twice, first time at half torque, then the second at
full torque. If you over tighten you can crack the manifold.
Good luck
Art LeDoux, Stillman Valley Illinois

Dec 24, 2009 | 2001 Chevrolet Suburban

1 Answer

Where is knock msensor bank 2 on 04 2500 series 6.0 located


They are Located UNDER Intake Manifold !! #1 bank in Front #2 Back.

  1. Remove the intake manifold.
  2. Gently pry up the rubber covers.
  3. Disconnect the knock sensor electrical connectors.
    1. Remove the knock sensors.
    INSTALLATION PROCEDURE

    NOTE: Refer to Fastener Notice in Service PrecautionsInstall the knock sensors. Tighten Tighten the sensor to 20 N.m (15 lb ft)
    1. Connect the knock sensor electrical connectors.
    2. Push down on the rubber covers.
    3. Install the intake manifold.

Oct 08, 2009 | 2003 GMC Sierra

1 Answer

Code P0330


P0330 Knock Sensor 2 Circuit Malfunction (Bank 2)
Check the resistance of the knock sensor (compare it to factory specs)
The knock sensor is faulty and needs to be replaced.
Check for broken/frayed wires leading to the sensor.
There is a wiring short/fault in the knock sensor circuit
Check timing

Nov 20, 2008 | 2001 Toyota Sienna

2 Answers

Knock sensor


The knock sensor threads into the side of the cylinder block.
  1. Disconnect electrical connector from knock sensor.
  2. Use a crow foot socket to remove the knock sensors.
INSTALLATION
The knock sensor threads into the side of the cylinder block in front of the starter.

  1. Install knock sensor. Tighten knock sensor to 10 Nm (7 ft. lbs.) torque. Over or under tightening effects knock sensor performance, possibly causing improper spark control.
  2. Attach electrical connector to knock sensor

May 15, 2008 | 2005 Chrysler Sebring Conv

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