Downshift Speed Test

To carry out this test, proceed as follows:
^ Shift into a lower gear than the gear used when carrying out the Slow Acceleration Test.
^ Drive at the engine rpm where the concern occurs.
^ The concern is engine speed related if duplicated while carrying out this test. This eliminates the tires, wheels, brakes and the suspension components as sources.
^ If necessary, repeat this test using other gears and NEUTRAL to verify the results.
^ Proceed as necessary.