try the fuel filter.
check your fuel filter.
impala sluggish after second gear
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No
Your 1992 Chevy Lumina will run with a bad 02 sensor. The engine will seem to be sluggish and the fuel mileage will go down.
Could be the starter.
I would suspect low fuel pressure would cause both conditions.
CHECK YOUR LUG NUTS
2 months ago. whens the last time you changed your fuel filter?
it just depens if trans is slipping or sluggish shift if just sluggish shift you can get a shift kit for the valae body have someone ho knows how to work on trans because you have to drill out ports and replace values and springs
Check and clean the MAF sensor.
Sounds like clogged fuel injectors or fuel filter.