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Chevrolet
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1990
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Astro Van Cargo Extended, 2.5 E, 4L60/MD8
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Repair and Diagnosis
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Engine Performance
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System
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Engine Controls - Tests W/O Codes
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Intermittent Trouble Shooting
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Symptom Definition
Symptom Definition
SERVICE ENGINE SOON light comes on but does not stay on. A stored code may or may not exist.