Saturn Repair Problems? Ask a Mechanic for Answers ASAP
Hello I will help,
Were the spark plug wires covered in oil?
Was the coil replaced due to the terminals being corroded?
Did you pull the ignition module when the coil was replaced?
What plugs did you install?
If the plug wells are leaking oil then you need to replace the valve cover gasket.
The coils are mounted on the ignition module. The back of the module has to be clean and the pad where the module mounts on the transmission as well. Di- electric grease is applied to the surface to keep it clean and conductive.
The plugs are good but any oil in the wells will conduct hi voltage to ground rather than through the plugs and you will get the miss under load.
Last thing be sure the plug wires are installed to the coils 4,1,2,3 looking from left to right as you stand in front of the car.
Is the check engine light on or is it flashing when you feel the miss?
Let me know how I can help
What about the check engine light?
What happens when you accelerate is the conditions in the cylinder change so it takes more voltage to jump the plug gap. That high voltage jumps out of the plug wire if there is any oil present or if the wires are poor. I know you have new ones, it is tough to get good ones now. If the plug body or the wire has any oil or grease on it you will have this issue
So what about the check engine light? Is it on? Is it flashing when this happens?
You have an ignition misfire, it comes on at high load and goes away when the load is reduced.
Try my suggestions above, it is in the ignition.
When you replaced one coil is the other showing whitish corrosion or rust on the plug wire terminals?
Ok, good. Then it has to be in the mating between the module and the transmission or the plugs in the wells. Something is not conducting the voltage to the plugs.
Let me know how I can help you with this