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Chevrolet HHR Problems

Flush cooling system every 60,000 miles on Chevrolet HHR

Problem Description and Possible Solution

GM recommends replacing the engine coolant at 100,000 miles; however, our technicians tell us that the coolant may become contaminated and require a complete cooling system flush every 60,000 to 70,000 miles.

(5 people reported this problem)

Chevrolet HHR Vehicles With This Problem

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Average mileage: (–)
5 model years affected: 2006, 2007, 2008, 2009, more2010
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