See also:

Tire Quality Grading
Department of Transportation quality grades - All passenger vehicle tires must conform to Federal motor vehicle Safety Standards in addition to these grades. These quality grades are molded on the ...

HEATING AND VENTILATION
1. Temperature control 2. Air conditioning switch (If Installed) 3. Air intake control switch 4. Air flow control 5. Fan speed control Fan Speed Control This is used to turn the blower fan o ...

Vacuum crankcase ventilation hoses
Inspect the surface of hoses for evidence of heat and/or mechanical damage. Hard and brittle rubber, cracking, tears, cuts, abrasions, and excessive swelling indicate deterioration. Particular att ...