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Pinpoint Test A: Vehicle Drifts/Pulls

WARNING: This page is about a different car, the 2010 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.

This pinpoint test is intended to diagnose the following:

PINPOINT TEST A: VEHICLE DRIFTS/PULLS 

  1. A1 CHECK FOR UNEVENLY LOADED VEHICLE 
    • Visually check the vehicle for an uneven loading condition.
    • Is the vehicle unevenly loaded? 
    1. YES  : ADVISE the customer of uneven loading condition.
    2. NO  : Go to  A2.
  2. A2 CHECK THE TIRE PRESSURE 
    • Check the tire pressures. Refer to the Vehicle Certification (VC) label located on the driver door jamb.
    • Is the tire pressure OK? 
    1. YES  : Go to  A3.
    2. NO  : ADJUST the tire pressures to the specified pressure.
  3. A3 ISOLATE TIRE PULL CONDITION 
    • Cross-rotate the wheel and tire assemblies from front-to-rear. Refer to WHEELS & TIRES article.
    • Does the vehicle pull/drift? 
    1. YES  : Go to  A4.
    2. NO  : The concern has been corrected.
  4. A4 CHECK FOR BRAKE DRAG 
    • Spin all 4 wheel and tire assemblies by hand and check for brake drag.
    • Does the wheel spin freely? 
    1. YES  : Go to  A5.
    2. NO  : REFER to BRAKE SYSTEM - GENERAL INFORMATION article to diagnose brake drag condition.
  5. A5 CHECK THE WHEEL ALIGNMENT 
    • Using alignment equipment and the manufacturer's instructions, check the wheel alignment.
    • Is the wheel alignment within specification? 
    1. YES  : REFER to STEERING SYSTEM - GENERAL INFORMATION article to diagnose steering system drift/pull condition.
    2. NO  : ADJUST the alignment as necessary. REFER to GENERAL PROCEDURES .
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