Coolant Leak & Engine Overheating on Chevrolet Astro

A coolant leak may develop from the water pump. The engine may overheat as a result of the coolant loss. A leaking water pump should be replaced.

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Average mileage: 185,280 (139,000–224,840)
Engine affected: 4.3L V6
7 model years affected: 1990, 1991, 1992, 1993, more1994, 1995, 1997
9 people reported this problem
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problem details
1995 Chevrolet Astro 139,000 mi,
Coolant started leaking from the Weep-hole under the water pump shaft casting. I replaced the water pump and used a homemade gasket w shellac. No leaks woks fine
1997 Chevrolet Astro - 4.3L V6 224,840 mi,
Leaking alot of Coolant fluid, took it a mechanic, estimate was $469.