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Pontiac
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2003
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Vibe Base, AWD
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Repair and Diagnosis
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Engine Performance
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System
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Engine Control System - Trouble Shooting - No Codes
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Symptom Diagnosis
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Poor Fuel Economy
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Cooling System Checks
Cooling System Checks
Check for the correct engine coolant level.
Check the engine thermostat for always being open or for the wrong heat range.