Fiat Doblo
Larger FIRE variant with 77 hp, shares most characteristics and weaknesses with the 1.2. Robust in character, but needs higher revs for decent power delivery. Cold start and temperature issues have been documented repeatedly. Overall reliable with consistent maintenance.
Petrol in a Van — Why?
57 kW petrol in the heavy Doblò is a miserable experience on every incline. Historically wrong engine choice.
Engine Weaknesses 5
Faulty ignition coils are also a known issue on the 1.4 FIRE. In severe cases, a coil failure can affect the ECU. Fault codes P0351/P0352 typically occur at operating temperature.
Symptoms: Juddering at operating temperature, engine warning light, occasional power loss, rough idle
As with the 1.2 FIRE, the water pump of the 1.4 FIRE is considered a wear item that should be replaced at the latest during the timing belt service. Workshops report frequent leaks from 80,000 km.
Symptoms: Coolant loss, temperature rise, coolant level drops without visible leak
On the Grande Punto with 1.4 FIRE, fuel pumps have been documented that could no longer maintain operating pressure of 3 bar. Result: power loss, rough running and engine warning light.
Symptoms: Significant power loss, engine won't pull, engine warning light, juddering under load
The 1.4 8V tends to cold-start problems from a faulty or incorrectly controlled coolant temperature sensor. Typically: engine starts, stops after 2–4 seconds and only starts on repeated attempts.
Symptoms: Engine starts and immediately stops, only driveable after multiple attempts, only with cold engine
The lambda sensor of the 1.4 FIRE wears out on schedule and generates mixture fault codes and increased fuel consumption when faulty. Documented multiple times on the Grande Punto and Panda 169.
Symptoms: Engine warning light, increased consumption, mixture fault code, unstable idle