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DIAGNOSTIC LABOR TIMES

RECOMMENDED LABOR TIMES FOR DIAGNOSTIC SERVICES

As an independent adviser to the automotive repair and maintenance industry through our many widely used publications, we believe that repair shops are entitled to charge for time spent diagnosing vehicle malfunctions and discrepancies and in preparing an estimate to effect necessary repairs.

Many car owners are unable to technically describe the complaint to a service technician; the technician must sometimes make a road test to determine the exact problem. Such diagnosis and estimation requires time, experience and in many cases the use of expensive testing equipment.

The following listed operations and times are given as Mitchell's recommendations of diagnostic and estimation times.

DIAGNOSTIC TIMES MENU
SUBJECT or COMPLAINT $TIME, hr.

AIR CONDITIONING

Includes: Check refrigeration system with manifold gauges and leak detector. Check compressor clutch, compressor and drive belt. Test temperature at A/C outlets.____ 1.0

COOLING SYSTEM/OVERHEATING

Includes: Pressure test for external coolant leaks or head gasket leak. Inspect belts and hoses. Test radiator cap. Add additional time if necessary, to test thermostat._____ .4

AUTOMATIC TRANSMISSION

Includes: Adjust quadrant and throttle linkage; pressure, stall and road test.___ 1.0

CHARGING SYSTEM

Includes: Test and inspect alternator, regulator, battery, cables and drive belt.______ .6

CHASSIS VIBRATION

Includes: Spin all wheels (on vehicle). Inspect U-joints and entire drive line.________ .6

EMISSION TEST

Includes: Test engine exhaust on qualified equipment for compliance with federal and/or state emission standards.____ .7

ENGINE PERFORMANCE - ANALYZE

Includes: Check on scope and exhaust gas analyzer. Add .3 if necessary to road test. ____________ .7

FUEL PUMP

Includes: Test pressure and capacity (volume). Inspect fuel lines and hoses. Inspect fuel tank cap. ___ .5

HARD COLD START, STALL

Includes: Inspect carburetor choke linkage and fast idle linkage for binding or accumulation of foreign deposits. Inspect choke thermostatic coil. Check on scope if necessary. ___ .5

ROAD TEST

Includes: Drive at highway speeds, if necessary._______ .3

ALIGNMENT CHECK

Refer to appropriate manufacturer for specific application shown in front suspension.

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