Job Description:

• 1) Conducts and evaluates tests on vehicles to check exhaust emissions: Reviews instructions to determine details of test to be performed.

• 2) Drives vehicle over dynamometer.

• 3) Records identifying data.

• 4) Performs dwell, timing and idle speed tests using gauges, evaluates performance and adjusts performance to manufacturer's specifications.

• 5) Adjusts dynamometer settings to vehicle specifications and connects instrument sensors to exhaust system.

• 6) Starts and operates vehicle according to test program, compares performance with specifications and records results.

• 7) Calibrates, cleans and maintains test equipment and recording devices.

• 8) May diagnose and repair vehicle malfunctions.

• 9) May install smog-control device on tested vehicle.