2004 Chevy Blazer service engine light

2004 CHEVROLET BLAZER
89,520 MILES • 6 CYL • 2WD • AUTOMATIC
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TGRMIKE
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service light is on for cooling system for engine. I replaced thermastat. its not running hot and not leaking. what could be the problem?
Jan 10, 2010 at 1:43 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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