1990 Buick LeSabre Q&A
1990 Buick LeSabre Question: not fireing on cyl 3 & 6 . I changed the ign coil. what's next???
rough idle-- so I changed the plugs & wires & coil. Didn't solve the problem. What's next???? - Visitor
Your problem may be coming from the ignition module, I've seen it many times with those coil pack set-ups - sts_rider
Double check the fireing order. Possible plug wire crossed. - Chris2716