LEMON Manuals: Even more car manuals for everyone
Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 2422 (Exhaust System) >> Diagnosis And Testing >> Exhaust System >> Pinpoint Test >> Pinpoint Test A: Drumming Noise

Pinpoint Test A: Drumming Noise

WARNING: This page is about a different car, the 2010 Mercury Mariner and 2010 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
  1. A1 CHECK THE EXHAUST SYSTEM 
    • Start the engine.
    • Increase the engine RPM until the noise is the loudest. Note the engine RPM.
    • Ignition OFF.
    • Add approximately 9 kg (20 lb) of weight to the exhaust system. First, place the weight at the tailpipe and test, then at the front pipe.
      Fig 1: Locating Tail Pipe And Front Exhaust Pipe
      G06098414Courtesy of FORD MOTOR CO.
    • Start the engine.
    • Increase the engine RPM and listen for the drumming noise. Note the engine RPM if the noise occurs.
    • Ignition OFF.
    • Remove the weight from the exhaust system.
    • Is the noise/vibration reduced or eliminated, or does the noise/vibration occur at a different RPM? 
scientia non olet · About LEMON Manuals