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.
Cleaning Procedure
2004 Oldsmobile Bravada AWDSECTION Cleaning Procedure
WARNING: This page is about a different car, the 2003 Pontiac Grand Am and 2003 Oldsmobile Alero. However, it is still accessible from the selected car via links, so may be relevant.
- Raise and support vehicle.
- Remove the EVAP canister. See EVAP CANISTER .
- Turn off the main valve on the EVAP Pressure/Purge Diagnostic Station (J-41413).
- Disconnect the hose from the diagnostic station pressure regulator.
- Using a section of vacuum hose, connect one end onto the diagnostic station pressure regulator.
- Connect the other end of the vacuum hose to the canister side of the purge pipe.
- Turn on the main nitrogen cylinder valve and continue to discharge nitrogen for 15 seconds.
- If the nitrogen does not dislodge the carbon particles, replace the purge pipe.
- Return the EVAP pressure/purge diagnostic station to the stations original condition.
- Install a new EVAP canister.
- Lower the vehicle.
- Install a new EVAP canister purge solenoid.
- Return to the diagnostic procedure that sent you here.
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.