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Home >> Dodge and Ram >> 1996 >> Intrepid ES >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System & Component Testing - 3.3L >> Emission Systems & Sub-Systems >> Exhaust Gas RECIRCULATION (EGR) System
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Exhaust Gas RECIRCULATION (EGR) System

  1. Inspect hose connections between intake manifold, EGR solenoid and transducer, and EGR valve. Replace hardened, cracked and damaged hoses.
  2. Ensure engine coolant temperature is more than 150°F (66°C). Put transmission in Neutral. Allow engine to idle for approximately 70 seconds. Suddenly accelerate engine to approximately 2000 RPM, but not more than 3000 RPM. EGR valve stem should move when accelerating engine. Repeat test several times to confirm EGR valve stem movement. If EGR valve stem moves, EGR control system if functioning properly, go to next step. If EGR valve stem does not move, See Figure ., EGR DIAGNOSTIC CHART.
  3. Remove vacuum hose from EGR valve. Connect a hand-held vacuum pump to EGR valve. With engine idling at operating temperature, slowly apply vacuum to EGR valve. When vacuum reaches 2.0-3.5 in. Hg, engine idle will become rough or engine may stall. If engine idle does not become rough or engine does not stall, go to next step. If engine idle becomes rough or engine stalls, EGR system is functioning properly.
  4. Remove EGR valve and EGR tube. Inspect EGR valve and EGR tube for plugged passages. Also check intake manifold inlet passage. Repair or replace components as necessary. If necessary to replace EGR valve or EGR solenoid/transducer assembly, EGR valve and EGR solenoid/transducer assembly must be replaced together because they are calibrated to match each other.
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