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 MANUALSOLDSMOBILE2004BRAVADA AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 394 (HVAC SYSTEMS - GENERAL SERVICING)LEAK TESTINGELECTRONIC LEAK TESTING PROCEDURE
2004 Oldsmobile Bravada AWD
Electronic Leak Testing Procedure
2004 Oldsmobile Bravada AWDSECTION Electronic Leak Testing Procedure
WARNING: This page does not describe the selected car, but rather 125 other vehicles, including the 2003 Dodge Ram Van, 2002 Saturn Vue, 2002 Saturn SL2, 2002 Saturn SL1, and 2002 Saturn SL. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Some electronic leak detectors will function on only R-12 systems or on only R-134a systems and some will function on both R-12 and R-134a systems. Familiarize yourself with tester being used and know what type of system you are leak testing.
Electronic leak detectors should be used in well ventilated areas. Avoid using around explosive gases. Always follow manufacturers instructions for specific tester being used. If none are available, proceed as follows:
- Turn all controls and detector sensitivity knob to OFF position or zero setting. Connect leak detector to an approved source of power. Turn switch to ON position and allow unit to warm up for about 5 minutes.
- Check operation of tester by positioning probe in a reference source where refrigerant is known to be present in small amounts. Adjust controls and sensitivity knob until detector reacts properly. Move probe away from refrigerant source and reaction should stop. If reaction continues, adjust sensitivity knob to a lower setting.
- When tester reacts properly, leak test A/C system by moving probe under all components, fittings and connections. Keep probe moving. To check evaporator, insert probe into drain tube opening or a heater duct. DO NOT allow probe to contact refrigerant or refrigerant oil. When leaks are found, repair as necessary. Keep in mind, there may be more than one leak.
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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.