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T7 -HEATING AND ENGINE COOLING SYSTEMS DIAGNOSIS, SERVICE, AND REPAIR

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T7 -HEATING AND ENGINE COOLING SYSTEMS DIAGNOSIS, SERVICE, AND REPAIR Step 1 - Correct Answer -Diagnose the cause of outlet air temperature control problems in the HVAC system; determine needed repairs. Step 2 - Correct Answer -Diagnose window fogging problems; determine needed repairs. Step 3 - Correct Answer -Perform engine cooling system tests for leaks, protection level, contamination, coolant level, temperature, coolant type, and conditioner concentration; determine needed repairs. Step 4 - Correct Answer -Inspect and replace engine cooling and heating system hoses, lines, fittings, and clamps. Step 5 - Correct Answer -Inspect, test, and/or replace radiator, pressure cap, and coolant recovery system components (expansion/surge tank). Step 6 - Correct Answer -Inspect and/or replace water pump and drive system. Step 7 - Correct Answer -Inspect, test, and/or replace thermostats, by-passes, housings, and seals. Step 8 - Correct Answer -Flush, refill, and bleed air from cooling system. Step 9 - Correct Answer -Inspect, test, and repair or replace engine cooling fan, hub, clutch, controls, thermostat, shroud, and air flow control devices.

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