Car running rough replaced coil pack, plugs wires

SOURCE: changed spark plugs and wires.

check to see if the wires are in right order and if the plugs and wires are the correct ones for vehicle

SOURCE: no spark

I had the ignition module go bad on mine. Bought a new one at advance for 130 bucks. Problem solved.

SOURCE: Need plug wiring order for 1992 Buick 3.8 v-6

if is a V8 any V8 that same size has the same firing order, 92 and 84

SOURCE: I have a 2000 buick lasabre that has been running

plugs and or wires.
for some reason the spark is jumping out of the wire or plug.
the plug insulater may have a crack in it.
also use a carb spray to clean out the throttle body at the throttle plate.
all the black carbon will build up around the throttle plate and restrick airflow at an idle position.

hope this helps
thank you
jm

Testimonial: "thanks I think a good tune up is what is needed, hopefully that's all"

SOURCE: car idles rough in park also runs rough in overdrive

Sometimes a rough idle like that is a fuel filter. As you've already done the plugs and wires the fuel filter would be my next bet.