1983 Renault LeCar 2D HatchbackFACTORY OEM SERVICE PROCEDURE

System Air Pressure

  1. With engine running at normal operating temperature and at 3000 RPM, detach hose from outlet side of diverter valve.
  2. Connect a pressure gauge to diverter valve outlet port and note reading.
  3. Pressure should be between 3.8-5.7 psi (.27-.40 kg/cm2 ). If lower, check air filter, drive belt, or pump. If higher, relief valve may not be operating properly.
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.