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I have a 2003 Buick century 3100 make popping sound idle and…

Customer Question
Second opinion] I have...

Second opinion] I have a 2003 Buick century 3100 make popping sound idle and acceleration I can remove number 1 plug wire from coil sound stops put it back on sound starts back

Mechanic's Assistant: Where exactly do you think the noise is coming from? And how long has this been going on?

Can not really tell I was driving interstate felt like it asselerated then noise started no smoke not overheating had it towed home

Mechanic's Assistant: Are you fixing your Century yourself? What have you tried so far?

Just trying trouble shoot checked plugs wires and coil

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

Why would the popping stop when irevove plug wire #1from coil

Submitted: 3 months ago.Category: Buick
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Answered in 1 hour by:
3/27/2018
Buick Mechanic: rpmdiag, Tech and Instructor replied 3 months ago
rpmdiag
rpmdiag, Tech and Instructor
Category: Buick
Satisfied Customers: 8,958
Experience: Since 1975
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Hello, my name is ***** ***** to Just Answer! I will be assisting you with your questions today. Give me one moment while I review this.

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Buick Mechanic: rpmdiag, Tech and Instructor replied 3 months ago

Yep, you have an intake valve staying closed on that cylinder, possibly due to a flat can lobe.

Do a compression test on ALL cylinders to confirm this.

Please understand that I don't know your skill level or tools
you have to assist us. Also understand that I can't see, smell,
hear, or touch the vehicle either, so your patience is
appreciated. JA is a great Q/A site, but it does not replace a
repair shop. So please don’t shoot the messenger if I have to
deliver bad news:)
pops up. I don’t get credit for helping you until
you rate me

Thanks, Ron

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Buick Mechanic: rpmdiag, Tech and Instructor replied 3 months ago

Did you have any more questions for me at this time?

Thanks again, Ron

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Buick Mechanic: rpmdiag, Tech and Instructor replied 3 months ago

Thanks again and please remember to rate me 5 stars now
and keep this link in case you need me again later on.
I don’t get credit for assisting you until you rate me
My goal is to assist you in the repair of your vehicle by
supplying you with well educated information. I may not
always have the exact fix you wanted to hear, but my job is
to get you on the right track, which I always do. I can’t hear,
see, smell or touch your vehicle from where I’m at, so your
understanding of that is greatly appreciated. There are no
magical answers, but I do my best to guide you in the right
direction.

Ron

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