TDCi: meaning and characteristics of Ford diesel engines with common rail direct fuel injection

TDCi: Ford diesel engines with Common Rail direct fuel injection system

TDCi are turbocharged diesel engines with the Common Rail fuel injection system,  installed on Ford cars. They were introduced in 2000. Some of these engines are manufactured in-house by the Ford Motor Company while others are produced by Groupe PSA (now Stellantis).

Features of TDCi engines

All TDCi engines have 4 cylinders and 8 or 16 valves. Depending on the version, the engine block is made of aluminium or cast iron. The cylinder head can also be aluminium or cast iron. The engine is equipped with a turbocharger, often a variable-geometry one. As a rule, the valve timing mechanism uses a belt. However, there are versions with a chain or a combination of belt and chain.

Popular TDCi engines

Version name Code Capacity, L Number of valves Max. output, hp Max. torque, Nm Production start Ford models equipped with this type of engine
Duratorq DLD-414 F6JA 1.4 8 68 160 2002 Fusion;Fiesta Mk5. 
Duratorq DLD-415 UGJC 1.5 8 75 185 2012 B-Max; Fiesta Mk5.
DLD-416 GPDA, GPDC 1.6 16 90 215 2005 Focus Mk1; C-Max. 
DLD-416 G8DA; G8DB 1.6 16 109 240 2003 Focus C-Max; Focus Mk2.
Duratorq DLD-418 HCPA 1.8 8 90 227 2002 Focus C-Max; Transit Connect Mk1.
DLD-418 FFDA 1.8 8 100 240 2002 Focus Mk1.
DLD-418 KKDA; KKDB 1.8 8 115 280 2004 C-Max; Focus Mk1.
DLD-418 QYWA 1.8 8 125 320 2006 Galaxy Mk2; S-MAX Mk1.
Duratorq DW QXWA 2.0 16 140 320 2006 S-MAX Mk1; Galaxy Mk2.
Duratorq DW TXDA 2.0 16 163 340 2010 Kuga Mk1.
Duratorq DW Q4BA 2.2 16 175 400 2008 Mondeo Mk4.
Duratorq DW KNWA 2.2 16 200 420 2010 Galaxy Mk2; C-Max.
TDCi Duratorq FMBA 2.0 16 130 330 2002 Mondeo Mk3.
TDCi Duratorq QJBB 2.2 16 155 360 2004 Mondeo Mk3.
TDCi Duratorq JXFA 2.4 16 115 310 2006 Transit Mk6.

Common malfunctions of TDCi engines

Malfunctions  Engines
The fuel injectors break down rather early. F6JA; FFDA; JXFA; KKDA; KKDB; FMBA; TXDA; KNWA; Q4BA; QJBB; TXDA; HCPA
High risk of thermal damage to the engine pistons due to the injectors over-fuelling. FFDA; KKDA; KKDB; HCPA
Wear of the cylinder-piston assembly causes increased motor oil consumption. F6JA
The turbocharger wears out fast. GPDA; GPDC; F6JA
The front engine mount has a short lifespan. F6JA
The EGR valve quickly builds up carbon deposits. TXDA; KNWA; Q4BA; UGJC
The diesel particulate filter gets clogged after relatively low mileages. UGJC; Q4BA; KNWA; TXDA
The fuel system elements wear out quickly. G8DA; UGJC; G8DB
The camshafts wear out prematurely and their timing chain gets stretched. GPDA; GPDC; G8DA; QXWA; G8DB
The washers under the fuel injectors burn out regularly. GPDA; G8DA; G8DB; GPDC
The engine quickly builds up carbon deposits. GPDA; G8DA; G8DB; GPDC
The hydraulic mounts start leaking after a while. GPDA; GPDC; G8DB; G8DA
The crankshaft damper pulley and crankshaft position sensor break down prematurely. HCPA; KKDA; QYWA; FFDA
The fuel system elements are prone to airlocking. QYWA
A fault can occur early on with the hydraulic lifters, resulting in a knocking sound. QXWA; TXDA
Vibrations cause breakdown of electric wiring and malfunctions of the electronic control unit. QXWA; TXDA
Fuel impurities cause damage to the fuel pump shaft. JXFA; FMBA
The small end of the connecting rods get destroyed. FMBA; JXFA; QJBB

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