1982 Peugeot 504 Automatic TransFACTORY OEM SERVICE PROCEDURE

EGR System Check

CAUTION: Do not attempt to adjust the link-rod between output lever and swing arm on injection pump. If link-rod setting is changed, it will be necessary to replace complete pump.
  1. An improperly functioning EGR system results in heavy exhaust smoke and poor engine performance. If symptoms are not found when engine is cold, warm up engine until fan engages. This is to locate the components which malfunction only when hot.
  2. To check system, remove bracket holding electrovalves and ECB. This exposes ECB electrical connectors. Disconnect connector between ECB and engine speed sensor. Start engine.
  3. If symptoms disappear, EGR system is at fault. Check adjustment of each load sensor. See Load Sensor Adjustment.  If symptoms are still present, perform the following tests.
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:

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

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