Connecting Rod - Large End Bore

2004 Ford Econoline E150, Van Cargo, 4.6 WSECTION Connecting Rod - Large End Bore
WARNING: This page is about a different car, the 2002 Ford Econoline, 2002 Ford E550 Super Duty, 2002 Ford E450 Super Duty, and 2002 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
  1. Tighten the bolts to specification, then measure the bore in two directions. The difference is the connecting rod bore out-of-round. Verify the out-of-round is within specification.
    • Refer to the appropriate ENGINE article for the procedure.
    • If out of specification, install new components as necessary. Refer to the appropriate ENGINE article for the procedure.
      Fig 1: Measuring Connecting Rod Large End Bore Diameter
      G03404806Courtesy of FORD MOTOR CO.
RENDER: 1.0x

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When to See a Mechanic

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

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