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2002 GMC Envoy Question: My fuel mileage suddenly dropped to just a few miles per gallon w/ odor.



Besch01, Denver, CO, March 13, 2013, 11:07

I had an oil change, brake pads replaced and a stabilizer link replaced on Friday. Saturday when I went out to the garage there was a strong gas/chemical odor (but no leak or fluid I could see). I drove less than 40 miles and the gas tank dropped from full to less than 3/4 tank. I took it back to dealer, they could not find leak, could not replicate the smell and ran codes and nothing came up. I went home but gas continues to plummet. Another 25 miles, another quarter tank. I cannot afford to drive it at this rate. Help!

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