Replaces

Chevy GMC Cadillac Isuzu Hummer Engine Knock Sensor & Harness Kit with Intake Manifold Gasket Set - 1AEEK00785

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Q&A
Vehicle Fit

Part Details

  • Includes:   with Intake Manifold Gasket Set
  • Kit Includes:   (1) Intake Manifold Gasket Set

Our electrical and electronic parts are subject to strict quality testing.

Parts cannot be returned after they have been installed. Contact us with any questions before installing the parts.

Item Condition: New

Attention California Customers:

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.

Wear and Tear

This item is backed by a 60-day warranty against defects in materials and workmanship under its intended use. The warranty does not cover normal wear and tear. 

  1. step : Removing the Air Intake Hose (0:48)
    • Remove the 8mm bolt holding the engine cover
    • Loosen the air intake hose clamps with a flat blade screwdriver
    • Unclip the intake hose from the radiator hose
    • Pull the intake hose up and out
  2. step : Disconnecting the Intake Manifold (1:30)
    • Remove the 8mm bolts
    • Disconnect the harnesses by pulling up on the tab
    • Pry the vacuum hose free
    • Remove the 10mm nuts from the throttle body
    • Lift up the bracket and pull it aside
    • Remove the 8mm bolt and the pull the bracket aside
    • Disconnect the two hose plants and harnesses
    • Remove the 10mm nut and pull the set of harnesses aside
  3. step : Disconnecting the Fuel Line (3:47)
    • Disconnect the eight harnesses to the fuel injector by pulling up on the tab
    • Loosen the fuel line cap
    • Covering the fuel line with a rag, push the tab on the fuel bleeder with a flat head screwdriver
    • Replace the cap
    • Remove the clip
    • Push the fuel line separator tool all the way in and pull the fuel line free
    • Clamp the vacuum hose clamp with pliers and pull it free
  4. step : Removing the Intake Manifold (5:26)
    • Remove the series of 10mm bolts
    • Maneuver the intake manifold past harnesses and wires and move it as far as possible
    • Feed the EGR out through the harnesses
    • Lift the intake manifold up and out
  5. step : Removing the Engine Knock Sensors (7:24)
    • Pry up the knock sensor harness caps
    • Push in the sides of the harness with bent needle nose pliers and pull up
    • Remove the knock sensors with a 22mm socket
  6. step : Installing the Engine Knock Sensors (8:03)
    • Feed the knock sensor into place and tighten it with a 22mm socket
    • Push the harness back onto the knock sensor
    • Replace the cap
  7. step : Reinstalling the Intake Manifold (9:06)
    • Set the intake manifold down and pull the vacuum hose out through the other side
    • Disconnect the EGR by pulling out on the clip with a flat blade screw driver
    • Feed the hose through the side of the intake manifold
    • Maneuver the intake manifold down and into place
  8. step : Reconnecting the Fuel Line (10:14)
    • Reconnect the fuel lines
    • Replace the clips to lock the lines
    • Slide the hose clamp back into place using pliers
    • Line up the throttle body and reconnect it by pushing it up on the studs
    • Push the EGR valve back into place, replace the bolt, and reconnect the hose
    • Reconnect the vacuum hose into the throttle body
  9. step : Reconnecting the Intake Manifold (12:24)
    • Replace the 10mm bolts
    • Replace the bracket near the back
    • Torque the manifold bolts with a torque wrench
    • Start in the middle and work in a counter-clockwise pattern
    • Tighten them on the first pass to 44 inch pounds, then 89 inch pounds
    • Push the harness in and push the clip into place to reconnect the fuel injectors
  10. step : Reinstalling the Air Intake Hose (14:54)
    • Push the intake hose into place
    • Tighten the intake hose clamps with a flat blade screwdriver
    • Double check all the harnesses and hoses
    • Replace the engine cover with an 8mm bolt

Tools needed for replacement:

    Materials, Fluids, and Supplies

  • Rust Penetrant

  • Pliers, Cutters & misc Wrenches

  • Bent Nose Pliers

  • Ratchets & Related

  • Ratchet
  • Socket Extensions
  • Torque Wrench

  • Screwdrivers & Related

  • Flat Blade Screwdriver

  • Sockets - Metric

  • 10mm Socket
  • 22mm Socket
  • 8mm Socket

  • Specialty Tools

  • Fuel Line Disconnect Tool

4.50/ 5.0
6 reviews
5 Stars
4 Stars
3 Stars
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1 Star
5
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Worth the price
Bought this to get both jobs out of the way at the same time. Everything went together smoothly, truck runs better. Couldnt ask for more than that!
May 12, 2018
Works great
Part seems to be of quality, solved my problem! 10/10 would order from 1A again
October 10, 2018
Monie saved
This kit...... Way cheep compared to my local part dealers. One knock sensor cost bout tha same as this whole kit. Every thing fit perfectly an fixed my problem. Its a blessin to have found 1aauto i will refer all my family and friends to check 1aauto fo there part needs.
November 5, 2018
Knock Sensor
The kit came in 2 packages, one package with the harness and the gasket, the other package had the sensors. One of the sensors came in defective. Had to pay the shop to do the labor twice.......not good
January 8, 2019
Great product. Fixed my truck great. Will be ordering from here again.
February 23, 2019
Exactly what I needed
This was the perfect kit to fix my knock sensor issue and I opted to replace both sensors and the harness because I only want to do that job once. Everything so far so good
June 8, 2019
Will this fit my car? Add a vehicle to make sure
Customer Q&A
Ask a question to 1A Auto customers who purchased the product
What brand is this product?
C C January 26, 2019
1A Autos house brand parts are manufactured by various aftermarket companies specifically for us and built to your vehicles exact OEM specifications.
Peter M January 26, 2019
does this part come with everything shown in the picture and does it fit the Eighth dighit in the vin which is a T?
Amber H March 3, 2019
The kit will include everything in the photo. If you can contact us directly with your VIN we can also confirm the fit for you.
Emma F March 3, 2019
Does this kit have both knock sensors and the complete intake manifold gasket kit?
Ricky H March 4, 2019
This kit includes both knock sensors, the knock sensor harness and the 3 gaskets for the intake manifold.
Andra M March 5, 2019
Are these ac delco ?
Jalani G May 6, 2019
1A Autos house brand parts are manufactured by various aftermarket companies specifically for us and built to your vehicles exact OEM specifications.
Christa R May 6, 2019
Year Make Model Description
2002-2003Cadillac Escalade Cadillac Escalade with Intake Manifold Gasket Set Engine Knock Sensor & Harness Kit V8 6.0L
2002-2003Cadillac Escalade Cadillac Escalade with Intake Manifold Gasket Set Engine Knock Sensor & Harness Kit V8 5.3L
2003Cadillac Escalade ESV Cadillac Escalade ESV with Intake Manifold Gasket Set Engine Knock Sensor & Harness Kit V8 6.0L
2002-2003Cadillac Escalade EXT Cadillac Escalade EXT with Intake Manifold Gasket Set Engine Knock Sensor & Harness Kit V8 6.0L
2002-2003Chevy Avalanche 1500 Chevy Avalanche 1500 with Intake Manifold Gasket Set Engine Knock Sensor & Harness Kit V8 5.3L
2003Chevy Express 1500 Van Chevy Express 1500 Van with Intake Manifold Gasket Set Engine Knock Sensor & Harness Kit V8 5.3L
2003Chevy Express 2500 Van Chevy Express 2500 Van with Intake Manifold Gasket Set Engine Knock Sensor & Harness Kit V8 6.0L
2003Chevy Express 2500 Van Chevy Express 2500 Van with Intake Manifold Gasket Set Engine Knock Sensor & Harness Kit V8 5.3L
2003Chevy Express 2500 Van Chevy Express 2500 Van with Intake Manifold Gasket Set Engine Knock Sensor & Harness Kit V8 4.8L
2003Chevy Express 3500 Van Chevy Express 3500 Van with Intake Manifold Gasket Set Engine Knock Sensor & Harness Kit V8 6.0L
2003Chevy SSR Chevy SSR with Intake Manifold Gasket Set Engine Knock Sensor & Harness Kit V8 5.3L
1999-2003Chevy Silverado 1500 Chevy Silverado 1500 with Intake Manifold Gasket Set Engine Knock Sensor & Harness Kit V8 4.8L
1999-2003Chevy Silverado 1500 Chevy Silverado 1500 with Intake Manifold Gasket Set Engine Knock Sensor & Harness Kit V8 5.3L
1999-2000Chevy Silverado 1500 Chevy Silverado 1500 with Intake Manifold Gasket Set Engine Knock Sensor & Harness Kit V8 5.3L
2003Chevy Silverado 1500 Chevy Silverado 1500 SS with Intake Manifold Gasket Set Engine Knock Sensor & Harness Kit V8 6.0L
2001-2003Chevy Silverado 1500 HD Chevy Silverado 1500 HD with Intake Manifold Gasket Set Engine Knock Sensor & Harness Kit V8 6.0L
1999-2000Chevy Silverado 2500 Chevy Silverado 2500 with Intake Manifold Gasket Set Engine Knock Sensor & Harness Kit V8 5.3L
1999-2003Chevy Silverado 2500 Chevy Silverado 2500 with Intake Manifold Gasket Set Engine Knock Sensor & Harness Kit V8 6.0L
2001-2003Chevy Silverado 2500 HD Chevy Silverado 2500 HD with Intake Manifold Gasket Set Engine Knock Sensor & Harness Kit V8 6.0L
2001-2003Chevy Silverado 3500 Chevy Silverado 3500 with Intake Manifold Gasket Set Engine Knock Sensor & Harness Kit V8 6.0L
2000-2003Chevy Suburban 1500 Chevy Suburban 1500 with Intake Manifold Gasket Set Engine Knock Sensor & Harness Kit V8 5.3L
2000-2003Chevy Suburban 2500 Chevy Suburban 2500 with Intake Manifold Gasket Set Engine Knock Sensor & Harness Kit V8 6.0L
2000-2003Chevy Tahoe Chevy Tahoe with Intake Manifold Gasket Set Engine Knock Sensor & Harness Kit V8 5.3L
2000-2003Chevy Tahoe Chevy Tahoe with Intake Manifold Gasket Set Engine Knock Sensor & Harness Kit V8 4.8L
2003Chevy Trailblazer EXT Chevy Trailblazer EXT with Intake Manifold Gasket Set Engine Knock Sensor & Harness Kit V8 5.3L
2003GMC Envoy XL GMC Envoy XL with Intake Manifold Gasket Set Engine Knock Sensor & Harness Kit V8 5.3L
2003GMC Savana 1500 Van GMC Savana 1500 Van with Intake Manifold Gasket Set Engine Knock Sensor & Harness Kit V8 5.3L
2003GMC Savana 2500 Van GMC Savana 2500 Van with Intake Manifold Gasket Set Engine Knock Sensor & Harness Kit V8 6.0L
2003GMC Savana 2500 Van GMC Savana 2500 Van with Intake Manifold Gasket Set Engine Knock Sensor & Harness Kit V8 4.8L
2003GMC Savana 2500 Van GMC Savana 2500 Van with Intake Manifold Gasket Set Engine Knock Sensor & Harness Kit V8 5.3L
2003GMC Savana 3500 Van GMC Savana 3500 Van with Intake Manifold Gasket Set Engine Knock Sensor & Harness Kit V8 6.0L
1999-2003GMC Sierra 1500 GMC Sierra 1500 with Intake Manifold Gasket Set Engine Knock Sensor & Harness Kit V8 4.8L
1999-2003GMC Sierra 1500 GMC Sierra 1500 with Intake Manifold Gasket Set Engine Knock Sensor & Harness Kit V8 5.3L
2001-2003GMC Sierra 1500 HD GMC Sierra 1500 HD with Intake Manifold Gasket Set Engine Knock Sensor & Harness Kit V8 6.0L
1999-2000GMC Sierra 2500 GMC Sierra 2500 with Intake Manifold Gasket Set Engine Knock Sensor & Harness Kit V8 5.3L
1999-2003GMC Sierra 2500 GMC Sierra 2500 with Intake Manifold Gasket Set Engine Knock Sensor & Harness Kit V8 6.0L
2001-2003GMC Sierra 2500 HD GMC Sierra 2500 HD with Intake Manifold Gasket Set Engine Knock Sensor & Harness Kit V8 6.0L
2001-2003GMC Sierra 3500 GMC Sierra 3500 with Intake Manifold Gasket Set Engine Knock Sensor & Harness Kit V8 6.0L
2000-2003GMC Yukon GMC Yukon with Intake Manifold Gasket Set Engine Knock Sensor & Harness Kit V8 4.8L
2000-2003GMC Yukon GMC Yukon with Intake Manifold Gasket Set Engine Knock Sensor & Harness Kit V8 5.3L
2000-2003GMC Yukon XL 1500 GMC Yukon XL 1500 with Intake Manifold Gasket Set Engine Knock Sensor & Harness Kit V8 5.3L
2000-2003GMC Yukon XL 2500 GMC Yukon XL 2500 with Intake Manifold Gasket Set Engine Knock Sensor & Harness Kit V8 6.0L
2003Hummer H2 Hummer H2 with Intake Manifold Gasket Set Engine Knock Sensor & Harness Kit V8 6.0L
2003Isuzu Ascender Isuzu Ascender with Intake Manifold Gasket Set Engine Knock Sensor & Harness Kit V8 5.3L
Part 1AEEK00785
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