rough idle-- so I changed the plugs & wires & coil. Didn't solve the problem. What's next????
not fireing on cyl 3 & 6 . I changed the ign coil. what's next??? on 1990 Buick LeSabre
Your problem may be coming from the ignition module, I've seen it many times with those coil pack set-ups
thanks, I'll try it and let you know.
Double check the fireing order. Possible plug wire crossed.
What is the fireing order?