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How to Install K & N Blackhawk Cold Air Intake (07-08 4.8L) on your Chevy Silverado
Installation Time
1 hours
Tools Required
- Flat Blade Screwdriver
- 3mm Allen Wrench 10mm
- 1/2” Socket
- 5/8” Wrench
- Ratchet
- Extension
- Socket
- Pliers
Shop Parts in this Guide
PARTS LIST:
NOTE: FAILURE TO FOLLOW INSTALLATION INSTRUCTIONS AND NOT USING THE PROVIDED HARDWARE MAY DAMAGE THE INTAKE TUBE, THROTTLE BODY AND ENGINE.
TO START:
1. Turn off the ignition and disconnect the negative battery cable.
NOTE: Disconnecting the negative battery cable erases pre-programmed electronic memories. Write down all memory settings before disconnecting the negative battery cable. Some radios will require an anti-theft code to be entered after the battery is reconnected. The anti-theft code is typically supplied with your owner’s manual. In the event your vehicles’ anti-theft code cannot be recovered, contact an authorized dealership to obtain your vehicles anti-theft code.
2. Disconnect the mass air sensor electrical connection.
3. Lift up on the front of the engine cover to disengage from the mounting grommets. Then pull forward and remove the engine cover from the engine as shown.
4. Unhook the radiator hose mount from the intake tube.
5. Disconnect crank case vent hose from the valve cover as shown.
6. Loosen the hose clamps which secure stock intake tube to the throttle body and mass air sensor and then remove the intake tube from the vehicle.
7. Pull firmly upwards to release the air cleaner assembly from the mounting tray grommets, and then remove the assembly as shown.
NOTE: K&N Engineering, Inc., recommends that customers do not discard factory air intake.
8. Loosen the hose clamp and remove the mass air sensor from the air cleaner as shown.
9. Install the filter adapter onto the heat shield and secure with the provided hardware.
10. Install the “L” bracket (010031) onto the heat shield with the provided hardware as shown.
11. Install the provided edge trim onto the heat shield as shown.
NOTE: some trimming of the edge trim mat be necessary.
12. Remove the two air box mounting grommets shown.
NOTE: Some vehicles may not be equipped with the front grommet and hole. Go to step 13.
13. On vehicles not equipped with the front air box mounting grommet and hole, install the heat shield assembly as shown. Then use a marker to mark the mounting plate through the heat shield mounting hole.
14. Remove the heat shield assembly and drill a 5/8”id hole through the marked location from step #13.
15. Install the two 5/16”inserted nuts into the air box mounting tray as shown.
16. Install the heat shield assembly onto the air box-mounting tray and secure to the 5/16” inserted nuts with the provided hardware as shown.
17. Secure the heat shield mounting bracket to the inner fender with the two fender washers and hardware as shown.
18. Install the silicone hose (08618) onto the filter adapter and secure with the provided hose clamp.
19. Install the silicone (08050) hose onto the throttle body and secure with the provided hose clamp.
20. Install the mass air sensor assembly into the silicone hose on the filter adapter and secure with provided hose clamp.
21. Install the silicone hump hose (08543) onto the mass air sensor and secure with the provided hose clamp as shown.
22. Install the “L” bracket (070812) onto the K&N® intake tube with the provided hardware as shown.
23. Install the K&N® intake tube into the silicone hose at the throttle body and mass air sensor and secure with the provided hose clamps.
24. Install the upper radiator hose mount onto the mounting bracket installed onto the K&N® intake tube.
25. Install the provided crank case vent hose onto the valve cover and then onto the K&N® intake tube as shown.
26. Install the K&N® filter as shown and secure with the provided hose clamp.
27. Reinstall the engine cover removed in step #3.
28. Reconnect the mass air sensor electrical connection.
29. Reconnect the vehicle’s negative battery cable. Double check to make sure everything is tight and properly positioned before starting the vehicle.
30. The C.A.R.B. exemption sticker, (attached), must be visible under the hood so that an emissions inspector can see it when the vehicle is required to be tested for emissions. California requires testing every two years, other states may vary.
31. NOTE: Most General Motors vehicles have the Vehicle Emissions Certification Information (VECI) label affixed to the air filter box. In order to be compliant with California emissions laws, the label MUST remain in the engine compartment. If the Vehicle Emission Control Information label is removed during modification, a new replacement label must be obtained and installed in a readily visible position in the engine compartment. The label shall not be affixed to any equipment which is easily detached from the vehicle. We recommend that the label is affixed to the underside of the hood adjacent to the hood latch. The label is Vehicle Identification Number dependent and can be ordered from the vehicle dealership. In order to receive the proper decal please bring your VIN with you. Failure to have the VECI under the hood may result in failure of a pre-registration smog test.
32. It will be necessary for all K&N® high flow intake systems to be checked periodically for realignment, clearance and tightening of all connections. Failure to follow the above instructions or proper maintenance may void warranty.
1. Start the engine with the transmission in neutral or park, and the parking brake engaged. Listen for air leaks or odd noises. For air leaks secure hoses and connections. For odd noises, find cause and repair before proceeding. This kit will function identically to the factory system except for being louder and much more responsive.
2. Test drive the vehicle. Listen for odd noises or rattles and fix as necessary.
3. If road test is fine, you can now enjoy the added power and performance from your kit.
4. K&N Engineering, Inc., requires cleaning the Blackhawk InductionTM intake system’s air filter element every 100,000 miles. When used in dusty or off-road environments, our filters will require cleaning more often. We recommend that you visually inspect your filter once every 25,000 miles to determine if the screen is still visible. When the screen is no longer visible some place on the filter element, it is time to clean it. To clean, purchase our Synthetic Filter Cleaner, part number 99-0624 and follow the easy instructions.
