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2018 Premier, 3.6 v6, 107k miles, about to change the spark plugs and clean the throttle body, other than that I've heard of needing to replace a "mass airflow sensor". There are no lights on the dash to check an error code. Any insight on the matter is greatly appreciated. Thank you and be safe.

 

[Carlosgp03]

2018 Premier, 3.6 v6, 107k miles, about to change the spark plugs and clean the throttle body, other than that I've heard of needing to replace a "mass airflow sensor". There are no lights on the dash to check an error code. Any insight on the matter is greatly appreciated. Thank you and be safe.

Did this got solved? my car is doing the very same thing at 105K with no check engine light either . Changed spark plugs, Throttle body, throttle body hose and gasket, Purge valve, all the intake gaskets, pcv breather and hoses. Still no improvement. Any Ideas?

 

[Big Buford]

You should not need to replace the Mass Airflow Sensor (MAF Sensor), but it does need cleaning on occasion. Auto parts store, Walmart, etc. should sell MAF Sensor cleaner. Follow the directions carefully.

That may/may not fix your issue. I would definitely read all the codes stored in your Impala. If you don't have a code reader, you can get one for not much money. Alternatively, the auto parts stores will usually read the codes for you for free. Let us know how it goes.....