LEMON Manuals
: Even more car manuals for everyone: 1960-2025
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Pontiac
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1997
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Sunfire GT, Standard
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Repair and Diagnosis
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System
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Engine Controls W/O Codes - 2.4L Engine
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Symptoms
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Engine Backfires
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Symptom Definition
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Symptom Definition
Fuel ignites in intake manifold or in exhaust system, making a loud popping noise.