This is a simple step-by-step checklist for diagnosing common car issues.
✔ Hard start
✔ Rough idle
✔ Misfire
✔ Loss of power
✔ Strange noises
✔ Overheating
✔ Electrical issues
Start with:
1) Battery health (voltage, corrosion)
2) Fuses
3) Check-engine codes (OBD-II scan)
4) Air filter
5) Spark plugs
6) Coil packs
7) Vacuum leaks
8) Fuel pressure
9) Sensor failures (MAF, O2, TPS)
Common quick wins:
• Replace spark plugs
• Clean throttle body
• Clean MAF sensor
• Check coils
• Tighten battery terminals
If you want, I’ll post a full guide for each symptom.
✔ Hard start
✔ Rough idle
✔ Misfire
✔ Loss of power
✔ Strange noises
✔ Overheating
✔ Electrical issues
Start with:
1) Battery health (voltage, corrosion)
2) Fuses
3) Check-engine codes (OBD-II scan)
4) Air filter
5) Spark plugs
6) Coil packs
7) Vacuum leaks
8) Fuel pressure
9) Sensor failures (MAF, O2, TPS)
Common quick wins:
• Replace spark plugs
• Clean throttle body
• Clean MAF sensor
• Check coils
• Tighten battery terminals
If you want, I’ll post a full guide for each symptom.