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If the catalytic converter in a 2009 Buick Enclave is malfunctioning, it will cause several issues. One clear sign is the presence of black smoke coming from underneath the hood of the car. Although it's not a fire, it's important to immediately turn off the vehicle. When you try to accelerate, you'll notice that the engine is unresponsive and slow, leading to a lower maximum speed than usual. Additionally, you may detect a sulfur or rotten eggs odor emanating from beneath the car. The typical cost of repairing a catalytic converter ranges from $950 to $2500, covering both parts and labor. While this is a costly repair, it is necessary to address the problem.
The catalytic converter for bank 1 in the 209 Buick Enclave can be found on the right side of the exhaust system, near the passenger side.