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Home >> Volkswagen >> 1996 >> Jetta TDI, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 18 (EGR Function Testing - VOLKSWAGEN) >> EGR Function Testing - VOLKSWAGEN >> Test 8 >> 1980-84 All Models Except Diesel

1980-84 All Models Except Diesel

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Warm engine to normal operating temperature. Disconnect vacuum hose to EGR valve. Test EGR valve by temporarily connecting vacuum hose from distributor retard diaphragm to EGR valve. Engine should run rough or stall. If not, check for clogged EGR passage or faulty EGR valve.