1983 Mercury Capri Base, AutomaticFACTORY OEM SERVICE PROCEDURE

Fuel System

  1. Connect fuel pressure gauge to pressure relief valve on fuel rail assembly. See Figure . Pressurize fuel system by starting and running engine or turning ignition off and to "RUN" position several times. Fuel pressure should be 35-45 psi (2.5-3.0 kg/cm2 ).
  2. If pressure is not correct, check to ensure ignition coil is connected. Ensure that injectors, fuel pressure regulator or fuel delivery lines and connections are not leaking.
  3. If no pressure reading can be obtained, check fuel pump circuit. When fuel pressure is obtained, turn key off. Pressure must not drop more than 4 psi (.3 kg/cm2 ) within 2 minutes after ignition is turned off.
  4. If pressure drops more than specified, check for hydrostatic lock, leaking injector and/or faulty pressure regulator.
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.

Rather have a pro handle this?

A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.

Comes to youSame-day available12-month warranty
Get a Free Quote

No obligation. See pricing before you book.