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Dan
Dan, ASE Certified Technician
Category: Cadillac
Satisfied Customers: 1422
Experience:  Dealer Auto Technician
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Misfiring, i have 120000 miles on my car and i have changed

Customer Question

misfiring
JA: How many miles are on the car? Is it a steady misfire? Or random?
Customer: i have 120000 miles on my car and i have changed all spark plug, 6 cylinder coil and fuel injection and it still says 6 cylinder mifire
JA: What is the model/year of your Cadillac?
Customer: 2006 cadillac cts
JA: Are you fixing your CTS yourself? What have you tried so far?
Customer: changed all spark plug, 6 cylinder coil and fuel injection
JA: Anything else you want the mechanic to know before I connect you?
Customer: no thats all
Submitted: 16 days ago.
Category: Cadillac
Expert:  Dan replied 16 days ago.

Hello my name is***** am an ASE Master Technician and I am glad to help you with your question.

Expert:  Dan replied 16 days ago.

You need to check for spark, injector pulse and compression on that cylinder and see which one you do not have causing the misfire. You need a spark tester, noid light for injector pulse and a compression gauge to check these.

Expert:  Dan replied 16 days ago.

Please reply to this if you need more help and we can continue this conversation at no extra charge. This does not have to be my only answer. If you are satisfied with my service, please rate at the top of the screen. Rating does not close out your question. Remember, sometimes it is difficult to completely diagnose your vehicle without being there, but I will try to give you the best answer I can. Hoping to be giving you 5 star service.

Thanks

Expert:  Dan replied 10 days ago.

Hello again Dan here,

I am contacting you because the post has not been closed or rated.

This question is coming up on 7 days which means it will time out and close.

You have already paid to get this question answered, but you have not rated.

Let me help some more. Is there anything else I can help you with?

If I did not give you 5 star service, please let me know what I missed.