K Yukon/Denali 4WD V8-5.7L VIN R (2000)
Preliminary Checks
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Check the proper operation of the cooling fans.
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Check for system voltage above 10.5 Volts.
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Check the A/C fuse and replace as necessary.
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Check the A/C blower operation and repair as necessary.
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Check the clutch coil electrical connection and repair as necessary.
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Check the drive belt and replace if damaged or missing.
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Check the condenser for restricted air flow and clean as necessary.
Refer to the following tables when you are diagnosing insufficient cooling complaints.
