I have changed what I thought was a bad coil but I still ...


I have changed what I thought was a bad coil but I still don’t have fire at the 3and 6 cylinder Mechanic's Assistant: What is the make/model/year of your car? 2006 Grand Prix Mechanic's Assistant: Are you fi...

I have changed what I thought was a bad coil but I still don’t have fire at the 3and 6 cylinder Mechanic's Assistant: What is the make/model/year of your car? 2006 Grand Prix Mechanic's Assistant: Are you fixing your Grand Prix yourself? What have you tried so far? Replaced coil that was not working Mechanic's Assistant: Anything else you want the Mechanic to know before I connect you? New one is not working either but I can

Automotive Expert
Hello and welcome! My name is [and I can assist you with your question. I am a former master tech and I have worked in this field for 20 years. I specialize this type of problem you are experiencing so I am confident I can assist with this issue. I am sorry you are having this issue and I understand this can be frustrating so I will try my best to help.](//www.justanswer.com/car/expert-amedee/) [While we are working on this issue together, please allow up to 30 minutes (or more) between replies as I might be online helping other customers or offline spending time with family. Please understand I can only see what is on this page and what you have already shared with me. Please keep in mind, I don’t know the history of the vehicle and I don’t know your mechanical ability, however, I will try my best to help.](//www.justanswer.com/car/expert-amedee/) [The phone call prompts are automatic and are coming from the web site, not from me. If you would like to speak on the phone, please request a phone call on your end and I will call you right away.](//www.justanswer.com/car/expert-amedee/) [I am going to start by asking some basic questions to get caught up to where you are at with this situation so I can assist you in a timely manner and provide you with the most accurate and relevant information. I appreciate your time and patience while we are working together on this matter.](//www.justanswer.com/car/expert-amedee/) [My goal is to provide you with a pleasant experience and ensure all of your questions are answered. Please reply back at any time so I can fully answer or address any questions or concerns you may have.](//www.justanswer.com/car/expert-amedee/) [_Please download or save any documents or images I may send you as they will automatically expire after 7 days._](//www.justanswer.com/car/expert-amedee/) [Can I start by getting your first name? Thank you](//www.justanswer.com/car/expert-amedee/)

Will
Automotive Expert
Thank you Will. If changing the ignition coil didn't fix the issue I would recommend to go after the ignition module next. That would be the most likely possible cause. If the problem continues then I would suspect a faulty crankshaft position sensor or possibly a faulty harmonic balance or the trigger wheel on the harmonic balancer. You can certainly check that first by doing a good visual inspection or even removing it and having a close look first before replacing the ignition module. If all checks sound good replace the module and re-tested system. If the problem remains I would recommend replace the crankshaft position sensor. It has been a pleasure working with you so far. Keep in mind this is a “starting point”. We can always continue as needed at a later date or at any time. Feel free to run some tests and reply back for further assistance as needed. My goal is to provide you with excellent service. If you have follow-up questions on this same topic, please use the reply box below. To start a new conversation with me on a new topic, you can [request me here](//www.justanswer.com/car/expert-amedee/). Glad I can help. Please let me know if you have any further questions. Thanks and have a great day!

I switched places with a coil that was working and the new coil works in the 2and 5 placeIt's like were you bolt the coils in is not feeding the 3and 6 cylinder but all the others have fore
Automotive Expert
Right. That would indicate a possible bad ignition module.

Ok thanks I'll try that
Automotive Expert
You are most welcome!

That was the problem I really appreciate you help. Thanks again
Automotive Expert
EXCELLENT!!! Glad to hear it is all fixed! You are most welcome!!

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