There are 2 knock sensors on that engine. Both of them are underneith the intake manifold. You must remove the intake to even see them and to service them.
The sensor is located under the intake manifold. It takes about 2 and half hours to replace the intake manifold, book time. Knock sensor is about $35 + $60-$90/hr labor. So you are talking about $300.
I would go and get the tires balanced, FIRST. You could have front end parts worn too. Check and replace as needed.
knock, knock...whos there? bathtub...bathtub who? i dont know.
yes
60 Minutes on Classic - 2004 was released on: USA: October 2004
Once the knock sensor is set on the computer tells the fuel injectors to only go to about 60 percent. Or half depending on who you talk to. Check cables and connections first. If these are OK then get another sensor from a wrecking yard and connect it without removing the old one. Then tie it down tight to the intake manifold. Run the engine again and see if the issue goes away. Then decide if you are going to get in the engine and replace the sensor.
50 to 60 psi
What transmission does a 1998 Chevy silverado 4x4 with vortec 350 in it have...it has a 4L60E OR 4L80E...60 HAS 17 BOATS AND 80 HAS 18
Tavis Smiley - 2004 1-60 was released on: USA: 5 April 2004
Yes indeed. You need to find the wire that runs from the ECM to the sensor. Many times the wiring diagrams are off (pin numbers) or the wire colors do not match the diagrams. So unless you can see the knock sensor and trace back a wire, you will need to check the continuity of the "suspect" wire to make sure you have the right wire. You will likely need to pull up a wiring diagram from a web site to assist. (For instance a Quest or Villager wire number is actually 63 at the ECM, but the diagram for the Quest says 64. The right wire is white, but it looks yellow from age. NCA means a noise suppression gray tape wrapped around bare wire. The book says it is black/red wire. The engine compartment sub harness is not the one in the book - so the pin numbers are useless. The pigtail connector from the sensor is located behind the manifold cover and can not be touched or seen by a human, etc.) Then cut the wire and connect it to a new Knock Sensor ($60 - $200). Mount the new knock sensor any old place as long as it has a good ground. Many sensors bolt thru the middle (donut) and the bolt is the ground. The reason you need a knock sensor is that it is an active piezoelectric device. Meaning it sends a voltage to the engine computer. No voltage = bad sensor = warning light.
The Soup - 2004 9-60 was released on: USA: 20 February 2013
This depends entirly on the car. The sensor on my Detroit 60 series cost $450