Buick Repair Questions? Ask a Mechanic for Answers ASAP
Ok, with this type of issue and for such a long time happening, I thought it would be best to send you the GM security system information. I'm certain you will resolve this issue with this. Please let me know if you need more help and I will continue to assist you even after you have rated me.
Thanks so much,
I know, I just think there's a learning error they may be missing. I don't think there are any defective parts or anything like that. Please take the time to read what I sent you, it's easy to miss a step in the re-learning procedure. keep me posted.
Ok, is the security light on or flashing when this happens?
Then we may be barking up the wrong tree. You said you have spark and fuel when this happens, how do you know this exactly? Please be precise in this answer.
OK, here is some information from GM. Keep in mind that the symptoms may all be different, and this is worth looking into. If this is not your problem then I would look at the ignition switch losing power to the ECM intermittently. I will still help you after you have rated me.
Here it is, glad I could help. Looking forward to an excellent review.
No, it should still start. Testing would include a lab scope
It seems that our conversation has shifted quite a bit, now involving multiple questions about many unrelated things. I have offered many items to check for the original problem and a few others. If you were satisfied with those lengthy conversations, please reply positively so I can continue to assist you.
No diagrams are required for this, you're simply checking the harness for chafing, then you can do the repairs from there. All the wiring is still intact, just rubbed through. I'm doing my best for you, considering you have had this issue for over (5) years and spent "who knows how much" so far and I don't have the option of seeing the car as others had.
Not me, GM wrote the service bulletin. I don't question the engineers.
Just an FYI, I had a vehicle last week in the shop that; every time you turned on the radio, #6 cylinder began to misfire without setting a code. I found the problem and fixed that one. Do you know what those wires go to that run across the accumulator?
Something else of interest for you.
Another to to check is the ignition switch not sending power to the (S) terminal on the starter solenoid when this is happening. If there is no battery power there at that time, the switch would be bad.
I see you gave me a negative rating, which I did not deserve. I've been sticking with you on this from the start and trying to help you every way I could, even when you were inconsistent. I'm sure you didn't even read or look into all that I sent you because you are seeking a quick fix. All the other experts can view everything you and I have discussed, even in your multiple posts. Doubtfully they'll want to approach this. I did stumble across the fix too by the way, would you like it?