Protocol 3

2004 Ford Econoline E150, Van Cargo, 4.6 WSECTION Protocol 3
WARNING: This page is about a different car, the 2004 Mercury Monterey and 2004 Ford Freestar. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Protocol 3
G03243559Courtesy of FORD MOTOR CO.


The following offers a more detailed explanation of the coding strategy used in Protocol 3.

Model Year 

  • 2 - 2002
  • 3 - 2003
  • 4 - 2004

Vehicle Line 

  • A3 - Freestar/Monterey

Transmission 

  • 1 - Automatic transmission
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.