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The Chevy Express cabin air filter in a 2011 model can be found beneath the passenger side dashboard. It is recommended to replace the coolant every 60,000 miles. Changing the air filter should be done every 15,000 to 30,000 miles. For spark plugs, they typically need to be replaced around 100,000 miles, except for copper spark plugs which require replacement every 30,000 miles. It is important to be vigilant with maintenance as engine problems can arise. One critical issue is overheating, which may result in vehicle fires and potentially explosions. Other potential problems include excessive oil consumption, spark plug dislodgment, loose gaskets that need tightening, and oil leaks that should be promptly addressed.
The cabin air filter on a 2011 Chevy Express can be found underneath the dashboard on the right side for the passenger.