Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Section 53 (Engine Controls - Basic Diagnostic Procedures): Summary
If no faults were found while performing BASIC DIAGNOSTIC PROCEDURES, proceed to appropriate TESTS W/CODES article as listed below. If no hard codes are found in self-diagnostics, proceed to appropriate TESTS W/O CODES article also listed below for diagnosis by symptom (i.e., ROUGH IDLE, NO START, etc.) or intermittent diagnostic procedures.
- G - TESTS W/CODES - EEC 1.8L (for Escort & Tracer)
- G - TESTS W/CODES - EEC-IV (1.9L) (for Escort & Tracer)
- G - TESTS W/CODES - EEC-IV (2.0L) (for Probe)
- G - TESTS W/CODES - EEC-IV (2.3L) (for Tempo & Topaz)
- H - TESTS W/O CODES - EEC 1.8L (for Escort & Tracer)
- H - TESTS W/O CODES - EEC-IV (1.9L) (for Escort & Tracer)
- H - TESTS W/O CODES - EEC-IV (2.0L) (for Probe)
- H - TESTS W/O CODES - EEC-IV (2.3L) (for Tempo & Topaz)
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.