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Q:

poor gas mileage on 2002 Saturn SL1

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
over the last couple of months the gas mileage has dropped tremondously and the engine is shaking like there is a screw missing. It stalls occasionally but hasn't done it in a couple of months
(1) Answer
soundsd like it is running on 3 cylinders. that alone will give you lousy mileage. get it checked by a shop for tune up parts and why it is missing.

Roy