Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4WD L6-4.2L VIN SREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTFUEL DELIVERY AND AIR INDUCTIONAIR CLEANER HOUSINGSERVICE AND REPAIR
2003 Chevrolet TrailBlazer 4WD L6-4.2L VIN S
Air Cleaner Housing: Service and Repair
2003 Chevrolet TrailBlazer 4WD L6-4.2L VIN SSECTION Service and Repair
AIR CLEANER ASSEMBLY REPLACEMENT
REMOVAL PROCEDURE
1. Remove the air cleaner cover/resonator then position the air cleaner element and air outlet duct out of the way.
2. Remove the two air cleaner housing/washer solvent tank assembly retaining nuts (1) from the two studs (3).
3. Disconnect all of the washer pump electrical connectors.
4. Disconnect all of the washer pump hoses and plug the washer pump outlet ports to prevent leakage of washer fluid.
5. Lift the lower air filter housing/washer solvent tank assembly off of the studs (3) and remove the assembly.
INSTALLATION PROCEDURE
1. Install the lower air filter housing/washer solvent tank assembly onto the studs (3).
2. Reconnect all of the washer pump hoses to the washer pumps.
3. Reconnect all of the washer pump electrical connectors.
4. Install the two air cleaner housing/washer solvent tank assembly retaining nuts (1) to the two studs (3).
NOTE: Refer to Fastener Notice in Service Precautions.
Tighten
Tighten the nuts to 15 N.m (11 lb ft).
5. Install the air cleaner cover/resonator.
REMOVAL PROCEDURE
1. Remove the air cleaner cover/resonator then position the air cleaner element and air outlet duct out of the way.
2. Remove the two air cleaner housing/washer solvent tank assembly retaining nuts (1) from the two studs (3).
3. Disconnect all of the washer pump electrical connectors.
4. Disconnect all of the washer pump hoses and plug the washer pump outlet ports to prevent leakage of washer fluid.
5. Lift the lower air filter housing/washer solvent tank assembly off of the studs (3) and remove the assembly.
INSTALLATION PROCEDURE
1. Install the lower air filter housing/washer solvent tank assembly onto the studs (3).
2. Reconnect all of the washer pump hoses to the washer pumps.
3. Reconnect all of the washer pump electrical connectors.
4. Install the two air cleaner housing/washer solvent tank assembly retaining nuts (1) to the two studs (3).
NOTE: Refer to Fastener Notice in Service Precautions.
Tighten
Tighten the nuts to 15 N.m (11 lb ft).
5. Install the air cleaner cover/resonator.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.