FixVault
Home
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Saab
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2003
›
9-3 Vector, Automatic
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Repair and Diagnosis
›
Engine Performance
›
System
›
TRIONIC T7 Fuel Control System
›
Fault Diagnosis, Symptoms
›
Substantial engine knocking
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Fault symptoms
Fault symptoms
Substantial engine knocking due to poor fuel grade, resulting in serious damage to the engine.