Hey Scotty, 2002 Buick Lesabre Ltd. 3.8 V6. Car randomly started running rough. My buddy scanned it…

T-Bone

Hey Scotty, 2002 Buick Lesabre Ltd. 3.8 V6. Car randomly started running rough. My buddy scanned it and said it was my 2-5 coil (no spark). I went to the wreckers to get one,replaced it and no dice. As it turns out, there was a flat spot on the ignition control module, so I went back to the wreckers and got one replaced it and it worked! The 2-5 ignition coil wasn't the problem, it was the module. Problem is that here I am a couple of days later, and the car is randomly stalling, and with a little effort will fire right back up. Further even if I am driving at highways speeds, I am getting random hesitations (loss of power) and then it starts running normally again after 5 or so seconds. Any ideas?? Thanks,
T-Bone

Comments (3)
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T-Bone
T-Bone

Thanks!

T-Bone
T-Bone

Thm

ScottyKilmer
ScottyKilmer

well, gambling with used parts itself is making analysis harder. But, if those parts are indeed good, have a guy like me drive it as it acts up with his dealer level scan tool to analyze live and mode 6 data, they always show the problem area. And being a GM , do pressure test the fuel pump they go out a lot