Intermediate Servo

1988 Ford Bronco 4.9 Y, AutomaticSECTION Intermediate Servo

Hold air nozzle in intermediate servo apply passages. Operation of servo will be indicated by tightening of intermediate band around drum. With air still applied at apply passage, use 2nd air nozzle to apply air at the servo release passage. Band should now release (combination of air pressure and spring on release side of piston should overcome apply pressure).

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.