I went to my machanic and he removed a coil pack and then replaced it with a new one and the problem whent away FOR A WHILE. Once it started sputtering again I replaced the other two coil packs. The problem whent away again (I THINK) now the problem with sputtering only happens when i am going up a hill and only during accelleration.
MY first thought was BAD GAS...second NOT ENOUGH GAS IN THE TANK...and Last FUEL SYSTEM needs to be cleaned. This car has 80,000 miles and runs perfect I just cant find why the sputtering is so intermittent.
Bad Valves or fuel pump usually from redlining the care
The ignition timing is not set correctly or the timing chain is worn out or installed incorrectly.
A lot depends on when it is sputtering. Is it hesitating under acceleration? That is what happens most commonly in eclipses. It is probably a misfire in one of the cylinders. Change your plugs and wires.
That might be the PCV pipe or some other vacuum leak. That will cause stalling.
A 2002 Buick Century may run rough due to several potential issues, including a malfunctioning ignition system (such as worn spark plugs or faulty ignition coils), a clogged fuel filter, or problems with the fuel injectors. Additionally, vacuum leaks, a dirty mass airflow sensor, or issues with the engine's sensors can also contribute to rough engine performance. It's essential to perform a diagnostic check to identify the specific cause. Regular maintenance can help prevent these issues.
check spark plug gap and firing order-also check to make sure plugs are tight and wires connected
You can check the battery connector. Make sure they are not corroded; and see if there isn't any melting on it; sometimes it will startup but drive rough, make sure the the connection is tight. Also I think platinum spark plugs come standard on some Buicks, which have a very small electrode and a little gunk will cause them to misfire; I would swapped them for a set of old champion copper plus spark plugs and a new set of spark plug wires.
What causes a car to idle good and run rough when you give it gas?
all of these issues have started after i had jumped a friends of mine car. i have the v6 motor
Need to know what "it" is.
If the check engine light is flashing, it has "stored a code" meaning that you should be able to read a diagnostic code to find out what's wrong, that way neither of us will need to guess.
Not running on all cylindersBad plugs?Bad wires?Bad valve?Bad piston? Service engine light on?Have vehicle scanned to determine problem