Overflow hoses Citroën Peugeot 1.4 HDI 16V 1579GJ

Description

Overflow pipes for DELPHI 1.4 HDI 16V injection engines

Part description

Used overflow hoses (overflow hoses) for the fuel system – designed for 1.4 HDI 16V engines with DELPHI injection. This type of tubing is used to connect injector overflows and safely drain excess fuel to keep the system tight and the engine running smoothly.

If you are dealing with a diesel leak, a fuel smell in the engine compartment or a hardened/cracked overflow line, replacing the overflow hoses is often a quick and effective fix without unnecessary intervention in other components.

Technical information

• Manufacturer: Stellantis (Citroën / Peugeot)
• Model: Citroën C3; Peugeot 1007
• Other numbers: not specified

Product codes

• Product codes: 1579GJ

Installation recommendations

Generally/typically for fuel system overflow lines the exact procedure may vary depending on the specific engine design and fitment. Below is a practical and safe procedure that is used most often.

1) Before assembly (checks of used part)

• Compare the wire shape, number of branches/branches and type of terminations with the old piece.
• Check the condition of the hoses: whether they are hardened, cracked, porous or greasy from diesel at the joints.
• Focus on the ends/gaskets: they must not be torn or deformed.

2) Necessary tools and materials (in general)

• Basic set of hand tools
• Pliers (for clips, or for careful handling of tubes)
• Clean rags/towels, possibly cleaning agent for degreasing
• Protective gloves and goggles (working with fuel)

3) Step-by-step assembly procedure

1. Turn off the ignition and let the engine cool down.
2. Clean the working area around the injectors and pipes so that dirt does not get into the joints.
3. Prepare rags to catch fuel residue.
4. Carefully loosen and remove the old overflow tubes from the terminals (do not push with force – the connectors and sockets can easily be damaged).
5. If clips/detents are used, remove them and check if they are still usable for the new part.
6. Compare the routing of the old and new piece and prepare the correct seating so that the tubes are not in tension.
7. Put the overflow tubes on the appropriate ends one by one – make sure they are fully seated.
8. Secure the connections (with clips/detents if the design uses them).
9. Check that the cable does not rub against any sharp edges and is not pinched.
10. Wipe up any spilled fuel and visually inspect all connections.
• 4) Post-assembly checks and function verification
  • After starting, let the engine run for a while and check the tightness of all connections.
  • Check for moisture/diesel droplets around the overflows.
  • After a short test drive, perform a visual leak check again.

  5) The most common assembly mistakes + how to avoid them

  • Damage to sockets/connectors during disassembly – release the tubes gently, or gradually “sway” the connection.
  • Not fitting the tube to the stop – leads to leakage; always check for full deployment.
  • Bad wiring (in tension, breaks) – can cause cracking or disconnection; guide the tubes without tension.
  • Impurities in the joints – before assembly, clean the surroundings and work cleanly.

  Reasons why the part is damaged

  • Aging of the material – tubes harden and crack over time due to heat and operating conditions.
  • Effect of diesel fuel and fumes – long-term contact with fuel can accelerate rubber/plastic degradation.
  • Motor vibration – gradual loosening of connections or wiring rubbing against surrounding parts.
  • Improper handling during service – breaking off ends, tearing tubes or insufficient securing.
  • Leaks in joints – small leaks often turn into significant leaks if not dealt with in time.