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What is wrong if a 1994 Saturn SL1 bucks twice whenever you decelerate under 50 mph if fuel injection cleaner helps for a while but the problem always returns?

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If you can add a injector cleaner and it bandaids the problem temporarily it may be because your vehicle's fuel filter is becoming plugged which will cause a lean condition. Also the O2 sensor (Oxygen sensor) may need replacing. Both items can cause a lean condtion which will show up as a surge or bucking. MM

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First answer by 1930fcoupe. Last edit by 1930fcoupe. Contributor trust: 791 [recommend contributor]. Question popularity: 6 [recommend question]

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Answers.com > Wiki Answers > Categories > Cars and Vehicles > Parts and Repairs > Car Shaking Problems > What is wrong if a 1994 Saturn SL1 bucks twice whenever you decelerate under 50 mph if fuel injection cleaner helps for a while but the problem always returns?

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You have a 1994 Saturn SL1 Recently whenever you decelerate under 50mphit bucks you twice put fuel injection cleaner in and it helps for a while but the problem always returns what could this be?  94 Saturn SL2 it started to sputter but it doesn't do it all the time I changed gases and I added fuel injection cleaner and it seems it has gotten worst?