003 Buick Regal LS. New spark plugs / wires, and Fuel filter. Problem still persists. Car starts, and idles fine, pressing on break and gas at same time doesn't sputter or otherwise indicate a vacuum leak. For all intents and purposes the car drives fine.
However it has a complete lack of acceleration. Taking off from a stop sign takes more than a block to reach 35 MPH!! The engine doesn't sputter, or do anything abnormal, it just acts like your barely touching the gas. At first I thought maybe the petal, but when in park, pressing the gas revs the engine just fine but when in gear (D, 1, 2 or 3) pressing it the same amount barely does anything.
The only code indicated firing problem, which is why I changed the spark plugs/wire, but that didn't help.
I have not tried to floor it in reverse. I'm not sure if there is anywhere I could safely try that. I am curious as to what would happen though.
However it has a complete lack of acceleration. Taking off from a stop sign takes more than a block to reach 35 MPH!! The engine doesn't sputter, or do anything abnormal, it just acts like your barely touching the gas. At first I thought maybe the petal, but when in park, pressing the gas revs the engine just fine but when in gear (D, 1, 2 or 3) pressing it the same amount barely does anything.
The only code indicated firing problem, which is why I changed the spark plugs/wire, but that didn't help.
I have not tried to floor it in reverse. I'm not sure if there is anywhere I could safely try that. I am curious as to what would happen though.