1985 Merkur XR4Ti AutomaticFACTORY OEM SERVICE PROCEDURE

Low Pressure Fuel Pump Operational Test

  1. Connect jumper wire from pump ground terminal to a clean underbody ground and connect another jumper from pump feed terminal to alternator output terminal connection.
  2. If pump operates, test is okay. Go to LOW PRESSURE PUMP GROUND CIRCUIT TESTΒ  . If pump does not operate, replace low pressure pump.
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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.