Your Vehicle: 2001 Ford Escort ZX2 L4-2.0L DOHC VIN 3
Vehicle » Testing and Inspection » Symptom Related Diagnostic Procedures » 5: Road Test » Downshift Speed Test  
  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.