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.
Car Problem Reports
Chevrolet Venture Leaking Water Pump May Cause Coolant Loss and Overheating
Chevrolet Venture Problem
Engine Affected: 3.4L V6
Average Mileage: 135,600 mi (102,000 mi - 167,000 mi)
Visitor, 2002 Chevrolet Venture, 3.4L V6, 125,000 mi
Water pump started leaking. Replaced it myself for about $30 plus new coolant - easy to get to since the engine is mounted transversely. Has been working fine since.
Motor overheat due to water pump defect
Visitor, 2001 Chevrolet Venture, 167,000 mi
leaky water pump. blew a hose. had the two problems fixed, now a blown head gasket
Had it hauled to a local mechanic who informed me of the problem, said he'd seen it before in Chevy Ventures, and fixed it.