Tribute 4WD L4-2.3L Hybrid (2008)
Refrigerant: Testing and Inspection
REFRIGERANT IDENTIFICATION TESTING
1. Follow the instructions included with the refrigerant identifier to obtain the sample for testing.
NOTE: An A/C refrigerant analyzer must be used to identify gas samples taken directly from the refrigeration system or storage containers prior to
recovering or charging the refrigerant system.
2. The scan tool will display one of the following:
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If the purity level of R-134a is 98% or greater by weight, the green PASS light emitting diode (LED) will light. The weight concentrations of
R-134a, R-12, R-22, hydrocarbons and air will be displayed on the digital display.
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If the refrigerant R-134a does not meet the 98% purity level, the red FAIL LED will light and an alarm will sound alerting the user of potential
hazards. The weight concentrations of R-134a, R-12, R-22 and hydrocarbons will be displayed on the digital display.
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If the hydrocarbon concentrations are 2% or greater by weight, the red FAIL LED will light, Hydrocarbon High be displayed on the digital
display, and an alarm will sound alerting the user of potential hazards. The weight concentrations of R-134a, R-12, R-22 and hydrocarbons will
also be displayed on the digital display.
3. The percentage of air contained in the sample will be displayed if the R-134a content is 98% or greater. The scan tool eliminates the effect of air
when determining the refrigerant sample content because air is not considered a contaminant, although air can affect A/C system performance.
When the scan tool has determined that a refrigerant source is pure (R-134a is 98% or greater by weight) and the air concentration levels are 2% or
greater by weight, the scan tool will prompt the user if an air purge is desired.
4. If contaminated refrigerant is detected, repeat the refrigerant identification test to verify that the refrigerant is indeed contaminated.
Contaminated Refrigerant Handling
CAUTION: If contaminated refrigerant is detected, DO NOT recover the refrigerant into R-134a recovery/recycling equipment.
1. Recover the contaminated refrigerant using suitable recovery-only equipment designed for capturing and storing contaminated refrigerant only.
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If this equipment is not available, contact an A/C repair facility in your area with the correct equipment to carry out this repair.
NOTE: A new suction accumulator or receiver/drier must be installed as directed by the air conditioning system flushing procedure.
2. Determine and correct the cause of the customer's initial concern.
3. Flush the A/C system, see See: Heating and Air Conditioning/Service and Repair/Air Conditioning (A/C) System Flushing.
4. Dispose of the contaminated refrigerant in accordance with all federal, state and local regulations.