Diagnostic procedure

2010 Mazda 5 Sport, 2.3 L, StandardSECTION Diagnostic procedure
DIAGNOSTIC PROCEDURE CHART

STEP INSPECTION RESULTS ACTION
1 Inspect the following components for loose attaching bolts or worn parts:
  • Cooling fan
  • Drive belt and pulleys
  • Generator
  • Engine mounts
  • Exhaust system mounts

All items normal?
Yes Inspect the following systems:
  • Wheels
  • ATX
  • Driveline
  • Suspension
No Readjust or retighten engine mount installation position.
Service if necessary for other parts.
2
  • Verify test results.
    • If normal, return to diagnostic index to service any additional symptoms.

      (See SYMPTOM DIAGNOSTIC INDEXΒ .)

    • If malfunction remains, inspect related Service Bulletins and/or On-line Repair Information and perform repair or diagnosis.
      • If vehicle is repaired, troubleshooting completed.
      • If vehicle is not repaired or additional diagnostic information is not available, replace the PCM.

        (See PCM REMOVAL/INSTALLATION .)

RENDER: 1.0x

NO RELATED

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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.