Ford Puma 1.0 EcoBoost

Small crossover based on Fiesta underpinnings with 1.0 EcoBoost engines, often with mild-hybrid assistance on newer models.

At a Glance

  • Engine: 1.0 3-cylinder EcoBoost petrol, with optional mild-hybrid system on some versions.
  • Usage: town, commuting and family use.
  • Known for: car-like driving with crossover looks, sharing many behaviours with Fiesta/Focus 1.0 EcoBoost.

Common Issues on This Platform

  • Boost leaks or intake issues similar to other 1.0 EcoBoost applications.
  • Misfires or hesitation when ignition components start to age.
  • Mild-hybrid system quirks on relevant models (start-stop, charge/discharge behaviour).

Typical OBD2 Codes

Extra Ford EcoBoost Codes Worth Knowing

These are additional high‑value codes that tend to show up on Ford EcoBoost platforms when something isn't quite right.

How to Approach Diagnostics

  1. Treat engine-related issues much like a Fiesta/Focus 1.0 EcoBoost – check boost, ignition and fuel trims.
  2. On mild-hybrid models, also review battery state-of-charge, charge/discharge behaviour and any related fault codes.
  3. Inspect intake and charge pipework carefully, watching for oil misting at joints.
  4. Use live data and a suitable scan tool to monitor both engine and hybrid system behaviour on a test drive.

Trust note: These profiles are designed to narrow possibilities. Confirm with test data (trims, misfire counters, pressure/smoke tests, voltage checks) before buying parts.