2014 chevy impala needs spark plugs replaced
Do you have a question?
If, as George already asked, you have one, then we will need to know the engine size 2.4L, 2.5L or 3.6L, and if a 3.6L then possible if a limited or not…
Mechanics do this work all day long…
I’m sure this was just another car complaints one and done…
OK, replace them.
Replace them with the type recommended in the owner’s manual. Those would be the type of plug designed to work best in your engine. This is a job that is usually not that difficult (depending on the design of the engine) and, in any case, is not that expensive if done by a professional mechanic.