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Ford 2.3 / LRG-423 — Spark Plug Removal and Installation

Maintenance

For the Ford 2.3 / LRG-423, from the Ford service manual.

Applies to: Ford LRG-423 engine

Procedure

  1. Remove ignition wires as outlined.
  2. Loosen spark plugs and remove any dirt or foreign material from spark plug areas of cylinder head with compressed air.
  3. Remove spark plugs and mark location using a piece of masking tape.
  4. To install, reverse removal procedure. Check and adjust spark plugs. Tighten spark plugs to 9-20 N·m (7-15 lb-ft).

Tools required

  • Spark Plug Wire Remover T74P-6666-A Amazon
  • Spark plug gap tool Amazon

Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.

Specs & values

  • Spark plug gap 1.07-1.17mm (0.042-0.046 in.)
  • Tighten 9-20 N·m (7-15 lb-ft)

Full service-parts list: Ford LRG-423 engine →

Source: Ford service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.

More Ford repair guides →