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Home >> Isuzu >> 2003 >> Rodeo LSE, 2.2 D >> Repair and Diagnosis >> Engine Performance >> Emissions >> EGR Function Testing - ISUZU >> EGR Function Testing - ISUZU >> Test 2 >> Impulse, Stylus & Trooper II With Gasoline Engine

Impulse, Stylus & Trooper II With Gasoline Engine

  1. Check vacuum lines for correct routing. Disconnect vacuum hose at EGR valve, and plug hose end. Connect vacuum pump to EGR valve. Start engine. Apply 6-10 in. Hg to valve and hold.
  2. Engine speed should drop at least 100 RPM or engine should stall. Vacuum should not drop greater than one in. Hg in 30 seconds. Reconnect EGR vacuum hose. With engine warm, increase engine speed. Ensure EGR valve stem moves up.
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