6th Gen ('00-'05): Help: 2000 MC SS 3.8
Joined: Apr 2010
Posts: 12,601
From: Mentor, Ohio
15 Codes? That is a lot. As Bumpin asked, do you know if they all popped up about the same time (which could suggest something in common) or were they neglected and just kept stacking up?
Been having problems lately with driving my monte, it happens when you apply foot to gas pedal to gain speed and the moment you try to accelerate the car acts as if it's shuddering or doesn't want to gain speed, I have to very lightly push the gas to even drive to get the car going , hard to explain exactly what is wrong but it basically happens when you try to accelerate and it starts to act as it's putting and shuddering.
I'm sorry it took so long for me to reply back, I am currently living in Marianna,FL and I don't have access to many mechanics to help me, but I believe I've come to the conclusion that my catalytic converter is the culprit of my problem and it may be clogged. Once I am able to work and correct the issue I will update here.
You mentioned that it was misfiring on coil pack 3 & 6, when you replaced it, did the misfire go away? Maybe the ignition control module is bad at that coil? If a junkyard is nearby, try to get one off a car with the same 3.8L as your Monte and try it out. I had the same problem and a good percentage of the time it's that module that goes bad.
That's awesome! Good to see that the issue went away after replacing those components.
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