J&J Automotive Services developed an exclusive three-tiered diagnostic approach to evaluate driveability issues
with your vehicle.

Vehicle Diagnostics can be equated to blood tests, X-Rays or  CAT-Scans performed by your medical provider.

Our exclusive multi-tiered approach provides you with a detailed explanation of the diagnosis while providing  J&J
Automotive Services a detailed analysis of the issue.  

Through this approach, J&J Automotive Services works with you to provide cost effective solutions and
recommendations.

Visit us at 10404 Central Park Drive, Manassas, VA 20110  OR Call 703-368-3600
J&J Automotive Services diagnoses vehicles from other local businesses who don't have the extensive knowledge or
expertise.  We are Professional Automotive Experts!
Diagnostic Level 1

  • Driveability Inspection:
    Includes Labor and Equipment
    to Perform a Basic Inspection
    of Engine, Electrical
    Components, Wiring and
    Basic Vehicle Analysis
  • Compression Test
  • Primary and Secondary
    Ignition Test
  • Inspection of Base Timing
  • Fuel Delivery Test
  • Inspect for Vacuum Leaks
  • Confirmation of E.G.R
    Operation
  • Battery Test
  • Starting and Charging Test
Diagnostic Level 2

  • All of Level 1 Plus
  • Labor and Equipment to
    Perform a Complete
    Computer Scan and a
    Review of Trouble Codes and
    Circuits Identified
  • Fuel Pressure and Quantity
    Measurement
  • Out of Range Sensor Test
  • An Output Test of Oxygen and
    Temperature Sensors
  • Throttle and Air Flow Sensor
    Test
Diagnostic Level 3

  • All of Level 1
  • All of Level 2 Plus:
  • Labor and Specialized
    Equipment Required to
    Perform Diagnostics Tests
  • Complete On-Line Search
    for Repetitive Problems on
    Same or Similar Makes and
    Models
  • The Necessary Road Test to
    Reproduce the Driveability
    Problem
J&J Automotive Services 10404 Central Park Drive, Manassas, VA 20110 703-368-3600