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Home >> Audi >> 1982 >> 5000 Base, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> Diesel Fuel Injection - BOSCH >> Testing >> Injection Nozzles >> Noise Test

Noise Test

Isolate special testing gauge (US 1111). Use long, slow strokes of testing pump lever (1-2 strokes per second). If nozzle is working properly, it will "ping" as fuel emerges.

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