1985 Merkur XR4Ti StandardFACTORY OEM SERVICE PROCEDURE

Fuel Pump Relay Test

NOTE: The fuel pump relay is located in the circuit protection panel which is in the cowl near the left rear corner of the engine compartment. See Figure .
  1. Remove fuel pump relay from the circuit protection panel. Connect an ohmmeter between terminals 85 and 86 on the face of the relay. If the meter reads more or less than 85 ohms, replace the relay.
  2. Connect a jumper wire from the alternator output terminal to relay terminal 86 and another jumper wire from relay terminal 85 to a clean chassis ground. When the ground connection is made, the relay should click. Ohmmeter should show continuity between relay terminals 85 and 30. If the relay does not show continuity, it must be replaced. See Figure .
Chapter Navigation
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.

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.