Electric Leak Detector

WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.

WARNING:

Do not operate the detector in a combustible atmosphere since its sensor operates at high temperatures or personal injury and/or damage to the equipment may result.

Ensure that the vehicle has at least 15 percent of the specified refrigerant charge in the air conditioning refrigeration system in order to perform a leak test. Refrigerant Recovery and Recharging

NOTE:

Electronic leak detectors are sensitive to the following items:

Windshield washing solutions
Many solvents and cleaners
Some adhesives used in the vehicle

Clean and dry all surfaces in order to prevent a false warning. Liquids will damage the detector.

Do not use:

Soap solutions (not effective for leak detection)
Shop air (will introduce contamination to the refrigerant system)

Air movement from the engine cooling fan can affect the detectors ability to detect leaks. Always leak test with engine off and if possible after engine has reached normal operating temperature.

All fittings and components should be checked.
Take care not to contaminate the probe tip if the part being tested is contaminated.
No cleaners containing solvents should be used prior to using electronic leak detector.
Always follow the refrigerant system around in a continuous path so that no areas of potential leaks are missed. Move the tip along the refrigerant system at a rate of no more than 3 inches per second and a distance of 3/8 inch from the surface being tested. If a leak is found, always continue to test the remainder of the system.

Follow the instructions supplied with the GE-50078 leak detector.