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if the engine is backfiring it will damage the maf,.

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13y ago

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How many o2 sensors are on a 1999 suburban?

Ah, the 1999 Suburban is a wonderful machine. It typically has two oxygen sensors - one before the catalytic converter and one after. These sensors help ensure your Suburban runs smoothly and efficiently, like a happy little cloud floating down the road. Just remember to give your Suburban some love and maintenance, and it will keep on painting beautiful landscapes for you to enjoy.


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