Removal & Installation

1998 Mercury Mountaineer 5.0 P, AWDSECTION Removal & Installation
WARNING: This page is about a different car, the 1998 Ford Ranger. However, it is still accessible from the selected car via links, so may be relevant.

Disconnect negative battery cable. Remove any component necessary to gain access to PCM. For PCM location, see PCM LOCATION table. Loosen PCM connector retaining bolt (if equipped). Unplug harness connector from PCM. Remove 2 PCM mounting bolts. Remove PCM cover and PCM. To install, reverse removal procedure.

PCM LOCATION

Model Location
Ranger In Cowl Area (Passenger Side)
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:

  • 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.