1984 Renault Sportwagon AutomaticFACTORY OEM SERVICE PROCEDURE

PCV System: Description

The crankcase ventilation system recycles crankcase vapors back into the intake system for reburning. The system consists of an oil separator and necessary connecting hoses. Orifices are also used in the hoses to meter the amount of crankcase vapors being recycled into the intake system.

In addition, Fuego Turbo models use a vacuum regulating check valve, and a one-way check valve located on intake manifold.

Fig 1: Crankcase Ventilation System (Fuego Turbo)
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Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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