Menu
×
Search Bar
Search by Part Number, Part Name, or Vehicle
My Garage
Cart
Help Center Contact Us
Make sure this part fits

GM 90541521
Knock Sensor

1997-2005 GM

Customer Questions & Expert Answers (4)
GM 90541521 Knock Sensor
  • Part Description
    Sensor, Distributor (Also Knock Sensor); Ignition Knock (Detonation) Sensor
  • Manufacturer
    General Motors
  • Manufacturer's Notes
    This part is discontinued.
Make sure this part fits
  • 2000 Cadillac Catera Knock Sensor Diagram for 90541521
    The diagram listed above is for your reference. View diagram for your vehicle

    Related Parts for 90541521

  • Vehicle Fitment

    Year Make Model Trim Engine
    1997-2001 Cadillac CateraBase, Sport6 Cyl 3.0 L GAS
    2001-2005 Saturn L3002, 3, Base6 Cyl 3.0 L GAS
    2000 Saturn LS2Base6 Cyl 3.0 L GAS
    2000 Saturn LW2Base6 Cyl 3.0 L GAS
    2001-2003 Saturn LW300Base6 Cyl 3.0 L GAS
    2002-2003 Saturn VueBase6 Cyl 3.0 L GAS
    Warning: California's Proposition 65

  • Customer Questions & Expert Answers

    Q:
    Hey, is 90541521 a good match for my vehicle? Posted by ChevyPartsGiant Specialist
    A:
    Please Select Your Vehicle model to see if part number 90541521 is suitable before ordering.
    Posted by ChevyPartsGiant Specialist
    Q:
    How to replace the Knock Sensor (KS) for Bank 2 on Cadillac Catera? Posted by Customer
    A:
    To replace the Knock Sensor (KS) for bank 2, disconnect the Knock Sensor connector, and take off the power steering pump pulley. Then, by removing the Knock Sensor pigtail from the retaining clips, it is done by attaching to it a scrap of wire measuring about 36 inches long that will be used as a pull wire in the future. Tag the left hand Engine Mount and remove it, then remove the fastening bolts for the Engine Mount bracket to the block and remove the bracket to the block. Extractor bolt from the center of the Knock Sensor pulling pigtail through the wiring conduit with the wire while observe the routing for proper installation. Then unhook the Knock Sensor from the pull wire and let the pull wire remain in place. For installation, the mating surfaces of the Knock Sensor and the engine block should be properly cleaned, to make sure all the contact surface is right on the engine block. Do not use washers while installing the Knock Sensor, and tighten its nut to 20 n.m (15 lb ft). Securely chuck down the Knock Sensor pigtail to the pull wire and guide the pigtail back through the correct route to the retaining clip on the power steering pump, then send the pull wire. Make sure the pigtail will not touch the Exhaust Manifold or any moving parts while routing. Plug the wiring harness into the Knock Sensor, secure the pigtail to the retaining clips, bolt the Engine Mount bracket to the engine block and tighten bolts to 60 n.m (44 lb ft). Lastly, fit the left hand Engine Mount and the power steering pump pulley.
    Posted by ChevyPartsGiant Specialist
    Q:
    What is the torque specification for tightening the knock sensor for the 2000 Cadillac Catera? Posted by Customer
    A:
    Install the knock sensor onto the engine block and tighten it to 20 N.m (15 lb ft).
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Knock Sensor
    Q:
    Are any washers needed during the installation of the knock sensor for the 2001 Cadillac Catera? Posted by Customer
    A:
    No, do not use any washers when installing the knock sensor.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Knock Sensor
    If you have any questions about this product, please don't hesitate to ask us. We will be happy to help you!

OEM GM Knock Sensor 90541521 Designed for Proper Fit and Performance

Original OEM GM parts deliver superior quality and meet all performance standards needed for optimal automotive operation. The authentic part identified by 90541521 Knock Sensor is available in the market under the name GM Knock Sensor. This genuine product has a full warranty coverage from the manufacturer available at all authorized GM dealers throughout the United States. This part 90541521 Knock Sensor fits certain Cadillac Catera models, as well as Saturn Vue, L300, LS2 models.
The original GM component designated by manufacturer part number 90541521 maintains top performance when functioning as the Sensor, Distributor (Also Knock Sensor); Ignition Knock (Detonation) Sensor unit. The component 90541521 is constructed from durable material and its dimensions span 6.2 x 5.2 x 4.1 inches while weighing 0.50 Pounds. The Direct Replacement component is ready in New condition to ensure full compatibility with your vehicle system. The part 90541521 has available replacement options. GM manufacturer provides a warranty that ensures reliable operation of this product. The Shipping Policy and Return Policy pages outline complete details regarding shipping procedures and return processes.
If you want to save money in the long run on maintenance and repairs, you should choose OEM products because they're of the top level of durability. Are you on the quest of finding GM parts, our site is worth a visit. We stock an endless selection of high-quality GM components including things like ignition coils all the way through to fan shrouds and all at prices that can not be matched. You have nothing to worry about because all our OEM parts are covered with a manufacturer warranty, which guarantees superior quality and value.