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Home >> Pontiac >> 1990 >> Firebird Formula, 5.0 E, Automatic, 700R4/MD8 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/O Codes >> Engine Backfires >> Symptom Definition >> Notes

Symptom Definition: Notes

Fuel ignites in intake manifold or in exhaust system making a loud popping noise.

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