Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Were you sent here from the Cooling Insufficient, A/C System diagnostic table? | -- | ||
2 | Visually inspect for restricted air flow at the condenser. Is the air flow through the condenser restricted? | -- | ||
3 | Repair the air flow restriction condition or replace the condenser, if damaged. Refer to Condenser Replacement . Is the repair complete? | -- | -- | |
4 | Start the engine and turn the A/C ON. Are the cooling fan(s) ON and operating properly? | -- | ||
5 | Repair the cooling fan operation fault. Refer to Electric Cooling Fan Diagnosis in Engine Controls - 3.1L or Electric Cooling Fan Diagnosis (Functional Test) in Engine Controls - 3.8L. Is the repair complete? | -- | -- | |
6 |
Is the temperature the same before and after the orifice? | -- | ||
7 | Turn the engine OFF. Replace the damaged/faulty expansion (orifice) tube (orifice opening too large and/or the O-ring is damaged or missing). Refer to Expansion (Orifice) Tube Replacement . Is the repair complete? | -- | -- | |
8 |
Is the repair complete? | -- | -- | |
9 | Take readings of the low and high side pressures as well as the IP center outlet air temperatures after repairs are performed. Compare the pressures and outlet temperatures to those listed in the A/C Performance Table. Refer to Cooling Insufficient - Air Conditioning (A/C) System . Are the readings within the specified ranges? | -- | ||
10 | Operate the system in order to verify the repair. Did you correct the condition? | -- | Go to Symptoms in HVAC System - Manual or A Diagnostic System Check in HVAC System - Automatic | |
11 |
Is the action complete? | -- | System OK | -- |
