How to Replace Air Cleaner Assembly 99-02 GMC Sierra 2500
Difficulty: Beginner · About 25 min · Gmc Sierra
Replace the air-cleaner housing on a 1999–2002 GMC Sierra 2500 while transferring the filter-life indicator and reconnecting the intake duct securely.
Tools you will need
- Flat blade screwdriver
- Phillips screwdriver
- T25 Torx driver
Parts and supplies
- Air-cleaner housing
Steps
Remove the old airbox
With the engine off, loosen the intake-hose clamp and slide the hose away from the housing. Release the housing clips and lift the airbox out without pulling on the airflow sensor wiring.
Transfer the filter and indicator
Open the old housing and move the filter-life indicator to the replacement box. Transfer the air filter if it is clean and serviceable, then close and secure the new housing.
Install the replacement housing
Seat the new airbox on its locating points and engage its clips. Refit the airflow-sensor connection and intake hose, then tighten the hose clamps so the joints are sealed.
Check the intake path
Inspect the filter seating, housing clips, electrical connector, and intake joints. Start the engine and verify it runs normally with no loose or leaking intake connections.
Check your vehicle’s repair manual for exact specifications and fit.