Perform the previous Stall Speed Check procedure through the “Bring the engine speed back to low idle” step then complete the following: • Quickly move…

Converter Transmission’s Stall Speed: The stall speed is the engine speed (rpm) obtained at full throttle when the converter output shaft is locked. NOTE: It…

Use the Single-Cylinder Cutout Test to remove individual cylinders from the engine firing cycle and to monitor a running engine while the selected cylinder is…

The automated cylinder performance test is the most thorough test of cylinder performance (versus the single- cylinder cutout test, which tests the performance if individual…

The setup for dynamometer function is used to prepare the attached electronic control module (ECM) for advanced diagnostic tests that are run on the dynamometer.…

The engine run-in period allows the tester to detect assembly errors and to make final adjustments needed for performance that meets specifications. NOTE: The amount…

On-Highway Applications Operate the engine at 1500 to 1800 rpm in high gear for the first 80 to 160 km [50 to 99 mi] after…

Operate the vehicle in a gear that produces a road speed of 90 to 95 km/h [56 to 59 mph]. Operate the engine at 1200…

To monitor engine performance correctly, record the following parameters. To limit dynamometer operating time, instrument the engine or use INSITE electronic service tool to make…

The performance of an engine installed in on-highway vehicles can be tested on a chassis dynamometer. NOTE: Because of drive line efficiency and engine-driven accessories,…