Ford Puma 2

Common-rail diesel with timing chain in a higher power tier, torquey and economical in consumption. The exhaust aftertreatment with DPF and AdBlue is complex; NOx sensors are among the typical weak points and show up in the fault memory. EGR coking threatens in pure short-trip use. Refined and strong with proper care.

• !! Injector Problems: Juddering and Knocking from 140,000 km

  Faulty injectors cause severe juddering and knocking on acceleration. Problem occurs from approx. 140,000–150,000 km. Multiple injectors become leaky or faulty simultaneously. Ford has replaced all 4 injectors in individual cases without a permanent fix.

  Symptoms: Heavy juddering, knocking on acceleration, engine misfires, power loss
  400–1,600 $
  Ad Ford 1.5 EcoBlue injector Focus Mk41.5 EcoBlue injector ZTDB XWDA
• !! Recall Camshaft Sprocket Material Fatigue (16B42)

  Ford recalled approximately 8,400 vehicles (production October 2014 to April 2015) because the camshaft sprocket can fracture due to material fatigue and damage the engine.

  0–0 $
  Ad camshaft sprocket 1.5 TDCi SFJA Fordtiming belt kit 1.5 TDCi Ford recall 16B42
• !! EGR Cooler Crack with Coolant Ingestion from 120,000 km

  The EGR cooler develops cracks under extreme thermal cycling. Coolant enters the intake tract and forms black foam in the expansion tank. In the worst case a hydraulic lock results.

  Symptoms: Black or oily foam in the coolant expansion tank, coolant loss with no external leak, white exhaust smoke, tendency to overheat.
  500–1,200 $
  Ad EGR cooler 1.5 TDCi Ford Focus SFJAEGR cooler Ford EcoBlueEGR cooler gasket kit Ford 1884177

+ 4 more engine weaknesses + vehicle weaknesses

Turbocharged three-cylinder with good low-end torque and decent efficiency. The wet timing belt runs in oil and demands strict interval adherence, since a snapped belt means catastrophic damage. The cooling system should be kept an eye on. Agile and frugal, but durably reliable only with clean maintenance.

• !! Oil Bath Timing Belt — Engine Damage Risk from 100,000 km

  The 1.0 EcoBoost YYJE (Focus Mk3 FL, C-Max) uses an oil bath timing belt like all 1.0 EcoBoost variants. Belt debris clogs the oil pump and causes engine failure.

  Symptoms: Rubber debris in engine oil, warning light, sudden power loss through to complete engine failure
  400–900 $
  Ad Wet belt kit Ford 1.0 EcoBoostFord EcoBoost timing belt oil bath
• !! Thermostat Failure Causes Overheating from 90,000 km

  The electronically controlled thermostat of the 1.0 EcoBoost can fail, allowing engine operating temperature to rise uncontrolled. This significantly increases the risk of cylinder head damage.

  Symptoms: Temperature gauge climbs into the red, coolant loss, reduced heater output
  200–500 $
  Ad Ford 1.0 EcoBoost thermostatFord EcoBoost 1.0 thermostat housing
• !! Wet Belt Premature Degradation from 100,000 km

  The 1.0 EcoBoost YYJE in the Fiesta HJ uses an oil-bathed timing belt (wet belt). Incorrect engine oil or neglected service intervals significantly accelerate degradation. Belt failure invariably causes engine damage.

  Symptoms: Typically no warning symptom — sudden engine failure. On oil pump belt failure: rapid oil pressure loss
  800–2,000 $
  Ad Ford Fiesta 1.0 EcoBoost wet belt kitTiming belt kit Ford YYJE oil bath

+ 3 more engine weaknesses + vehicle weaknesses

Turbocharged three-cylinder in the lower power tier, frugal and undemanding in daily use. The wet timing belt in oil is the critical service point and must be changed strictly to interval. Very economical in consumption, livelier in pull thanks to forced induction than the displacement suggests. In need of care, but efficient.

• !! Oil Bath Belt — Engine Damage Risk from 100,000 km

  The 1.0 EcoBoost P4JB (Fiesta MK7 FL, EcoSport, Puma MK2) carries the known oil bath belt risk. Wrong oil type or overdue service intervals cause belt degradation and engine damage.

  Symptoms: Engine oil with black particles, warning light, rough running, abrupt engine failure
  400–900 $
  Ad Ford 1.0 EcoBoost timing beltwet belt kit EcoBoost
• !! Head Gasket Failure from Overheating from 120,000 km

  The 1.0 EcoBoost P4JB is prone to cylinder head damage during overheating events. The engine has very little thermal headroom; a failed thermostat or low coolant can warp the head quickly.

  Symptoms: White exhaust smoke, coolant loss, milky engine oil
  600–1,800 $
  Ad Ford 1.0 EcoBoost head gasketFord EcoBoost head gasket set
• !! Wet Belt Prematurely Degraded from 100,000 km

  The 1.0 EcoBoost P4JB in the Fiesta HJ uses an oil-bathed timing belt. Only Ford-approved oil (WSS-M2C948-B) protects the belt from premature degradation. Workshop replacement costs £1,300 and up.

  Symptoms: No warning symptoms — sudden engine shutdown possible. Blocked oil strainer from belt debris as an indicator
  900–2,000 $
  Ad Ford Fiesta 1.0 EcoBoost P4JB wet belttiming belt kit Ford 1.0 EcoBoost

+ 3 more engine weaknesses + vehicle weaknesses

Turbocharged three-cylinder with 48-volt mild hybrid and belt-driven starter-generator, which supports low-rev pull and lowers consumption. The wet timing belt runs in oil and must be replaced strictly to interval. The 48-volt system mostly works unobtrusively. Efficient and smooth, but demanding on the service side.

• !! Wet Belt in Oil Bath Degrades from 100,000 km

  The 1.0 EcoBoost mHEV B7JA (EcoSport/Puma mHEV) shares with all 1.0 EcoBoost variants the risk of the wet belt running in oil. Rubber particles in the oil block the oil pump and cause engine damage.

  Symptoms: Engine oil with rubber particles, check engine light, sudden power loss
  400–900 $
  Ad Ford 1.0 EcoBoost timing belt oil bathNassrieme kit EcoBoost
• !! Head Gasket Blown from 130,000 km

  Like all 1.0 EcoBoost variants, the B7JA carries the risk of a blown head gasket when an overheating event occurs, triggered by coolant loss or a faulty thermostat.

  Symptoms: White smoke, coolant loss, milky oil
  600–1,800 $
  Ad Ford 1.0 EcoBoost cylinder head gasketFord EcoBoost 1.0 cylinder head gasket set
• !! 48V Hybrid Battery Recall (Terminals) from 20,000 km

  Ford recalled the Puma 1.0 EcoBoost mHEV due to incorrectly tightened 48V battery terminals. Loose connections can cause localised overheating and melting of plastic components. Vehicles from Nov. 2019 – July 2020 affected.

  Symptoms: MHEV system failure, dashboard warning messages, in rare cases smell or heat near battery module
  0–200 $
  Ad Ford Puma 48V battery mHEV B7JAFord Puma Hybrid batterystecker 48V

+ 3 more engine weaknesses + vehicle weaknesses

Turbocharged three-cylinder with 48-volt mild hybrid in a higher power tier, lively and strong-pulling thanks to electric assistance. The wet timing belt in oil is the central maintenance topic and must be renewed on time, otherwise consequential damage threatens. Efficient and refined, but reliant on consistent care.

• !! 48V Hybrid Battery Recall (Terminals) from 20,000 km

  Ford recalled the Puma 1.0 EcoBoost mHEV 155 PS due to incorrectly tightened 48V battery terminals. Loose connections can cause overheating and melting of adjacent components. Vehicles up to July 2020 affected.

  Symptoms: MHEV system failure, dashboard warning messages, possible smell at battery module
  0–200 $
  Ad Ford Puma 48V battery mHEV BZJA 155PSFord Puma Hybrid batterystecker 48V
• !! Front Cover Seal Leaking — Coolant Loss (TSI 15-1070) from 60,000 km

  The front cover seal on early 1.0 EcoBoost engines (up to approx. Feb. 2015) was not oil-resistant. Oil attacks the seal, leading to slow coolant loss. TSI 15-1070 addresses the problem.

  Symptoms: Coolant level drops without visible external leak, temperature warning, whitish steam from engine bay.
  700–1,400 $
  Ad Ford 1.0 EcoBoost Stirn cover gasketFord EcoBoost Front cover gasket TSI 15-1070coolantausgleichsschlauch Ford EcoBoost 1.0
• !! 48V Belt-Starter-Generator (BSG) Faults from 100,000 km

  The 48V mild hybrid BSG and associated power electronics can develop faults. Replacement is costly; the 48V system electronics are complex.

  Symptoms: Mild hybrid system warning, no regenerative braking.
  800–2,500 $
  Ad Ford Puma mHEV BSG48V Riemenstartergenerator Ford Puma

+ 3 more engine weaknesses + vehicle weaknesses

Turbocharged performance three-cylinder with cylinder deactivation for greater part-load efficiency and a strong, muscular pull. The wet timing belt in oil demands strict interval adherence. The cooling system should be monitored. Rev-happy and spirited, but with the typical service discipline of modern forced-induction concepts.

• !! Turbocharger Wear Under High-Performance Use from 120,000 km

  The 1.5 EcoBoost ST in the Puma ST (200 hp) subjects the turbocharger to heavy load under frequent high-rpm use. Turbo bearings wear prematurely especially if the engine is not warmed up sufficiently or oil condition is poor.

  Symptoms: Boost pressure fluctuates, whistling from turbo, bluish smoke at high rpm
  1,000–2,500 $
  Ad Ford Puma ST 1.5 EcoBoost turbochargerFord 1.5 EcoBoost ST turbocharger
• !! Cylinder Block Cracks (Early Build Vehicles) from 80,000 km

  Early Puma ST (2020–2022) with 1.5 EcoBoost YZJA may still be affected by the cylinder block hairline crack issue. The block should have been revised after mid-2019, but old-stock units were still fitted.

  Symptoms: Coolant loss, white smoke, foaming coolant reservoir
  2,500–6,000 $
  Ad Ford Puma ST engine blockFord 1.5 EcoBoost engine block YZJA
• !! Camshaft HP Pump Lobe Worn from 80,000 km

  The 1.5 EcoBoost ST in the Puma suffers from wear on the high-pressure fuel pump lobe of the exhaust camshaft. A sticking roller follower creates extreme abrasion on the cam lobe. Ford dealers often recommend a complete engine swap; machining the lobe is the cheaper option.

  Symptoms: Irregular fuel pressure, rough engine note under load, hard metallic noise from valvetrain
  800–3,000 $
  Ad Ford 1.5 EcoBoost camshaft pump lobeCamshaft HP fuel pump lobe Ford ST 1.5 EcoBoost

+ 3 more engine weaknesses + vehicle weaknesses