1999 Chevy Astro overheating

1999 CHEVROLET ASTRO
114,000 MILES • 6 CYL • 2WD • AUTOMATIC
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CABLEMAN
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When idling at a stop light our van will start to overheat and once driving again the temp will start to go back down. So it only overheats when stopped. Would it be the thermostat or water pump causing this? Any other ideas?
Aug 1, 2009 at 2:19 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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