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Home >> Dodge and Ram >> 1982 >> Rampage Base, Automatic Trans >> Repair and Diagnosis (Single Page) >> Engine Mechanical >> Auxiliary Emission Control Systems >> Exhaust Gas RECIRCULATION >> Testing >> System Functional Check >> 2.6L Engine
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2.6L Engine

  1. Check vacuum hose condition, routing and installation. Start cold engine and run at idle, then increase speed to 2500 RPM. Secondary EGR valve should NOT operate. If valve operates, replace thermo valve.
  2. Warm up engine to at least 150°F. Accelerate engine to 2500 RPM and note that secondary EGR valve DOES operate. If not, check EGR valve or thermo valve and replace as necessary.
  3. Disconnect green stripe hose from carburetor nipple and connect vacuum pump to hose. Pull sub EGR valve by hand and apply 6 in. Hg vacuum. If engine idling speed becomes unstable, valve is operating properly. If no change, check and replace EGR valve or thermo valve as required.
  4. Reconnect green stripe hose to carburetor and disconnect yellow stripe hose. Apply 6 in. Hg vacuum with hand pump. Engine idle should become unstable if primary valve is operating properly. If no change, check and replace EGR valve or thermo valve.
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