2004 Mercury MarauderFACTORY OEM SERVICE PROCEDURE

Removal & Installation

  1. Disconnect the battery ground cable. For additional information, refer to BATTERY, MOUNTING AND CABLES .
  2. Loosen the bolt and remove the powertrain control module (PCM) electrical connector.
    Fig 1: Removing Powertrain Control Module (PCM) Electrical Connectors
    G02757458Courtesy of FORD MOTOR CO.
  3. Remove the PCM cover nuts.
    Fig 2: Removing PCM Cover Nuts
    G02757459Courtesy of FORD MOTOR CO.
  4. Remove the PCM cover.
    Fig 3: Removing PCM Cover
    G02757460Courtesy of FORD MOTOR CO.
  5. Remove the under dash sight cover.
    Fig 4: Removing Under Dash Sight Cover
    G02757461Courtesy of FORD MOTOR CO.
  6. Remove the PCM.
    Fig 5: Removing PCM
    G02757462Courtesy of FORD MOTOR CO.
  7. To install, reverse the removal procedure.
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

Shop Manual-Ready ToolsCompare Repair QuoteQuote Shield Pro

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.