Coil Choices

Joined
May 23, 2016
Messages
473
Location
New England
RockAuto lists 19 different coils for my 2006 Chevy Aveo. 18 are between $15 and $30. The Genuine GM is $85.

Was having a bit of a low speed miss. Changed to a $25 SMP coil which fixed the problem. After 1000 miles or so, getting a low speed miss again. Saw on YT a number of cases of aftermarket coils failing at low miles. Swapped the old OE coil back in and that improved things but it's still missing as to be expected.

How can a coil be manufactured and sold for $25 these days?
 
Unless they're OEM, you never know.

I will tell you my sons 2014 Kia Rio had a dead coil. Didn't want to spend a lot of money so just looked on Amazon for something with a lot of good reviews. Think we paid like $35 for FOUR.....

It was 2 years ago. Still running.
 
RockAuto lists 19 different coils for my 2006 Chevy Aveo. 18 are between $15 and $30. The Genuine GM is $85.

Was having a bit of a low speed miss. Changed to a $25 SMP coil which fixed the problem. After 1000 miles or so, getting a low speed miss again. Saw on YT a number of cases of aftermarket coils failing at low miles. Swapped the old OE coil back in and that improved things but it's still missing as to be expected.

How can a coil be manufactured and sold for $25 these days?
Go with the GM for $85, that is a $200 coil all day. It has been my experience with aftermarket coils especially of this type is not good, even brands like NGK have had a very short life, the OE is double the price but the engine runs better and they last a very long time.

https://parts.gmparts.com/product/g...2_KQxiC06_4VYH8PYB-ozBuo923D0yThlg1_1XOg83dKv
 
I just buy oem, or I will seek out who is the original equipment manufacture. For my old BMW, the factory coils are $165 from the dealer. I can get the exact same Bremi branded coil online for $34. There may be aftermarket that may work, but not worth the risk for me.
 
Go with the GM for $85, that is a $200 coil all day. It has been my experience with aftermarket coils especially of this type is not good, even brands like NGK have had a very short life, the OE is double the price but the engine runs better and they last a very long time.

https://parts.gmparts.com/product/g...2_KQxiC06_4VYH8PYB-ozBuo923D0yThlg1_1XOg83dKv
Yes. You and many others have attempted to pound into our heads how hit or miss aftermarket parts have become. Brands like MOOG, Gates, Felpro, and Timken can no longer be trusted for quality control. So it becomes a judgement decision. I.E., I decided to use Dorman HVAC blend motors on my Patriot because they are extremely easy to access and are not a critical component if they fail (they haven't). I used OEM parts to replace my Serpentine belt, tensioner, and pulleys - buy once, cry once - I don't want repeated repair/replacement.

Thank you for advising all of us shadetree knuckleheads.
 
Unless they're OEM, you never know.

I will tell you my sons 2014 Kia Rio had a dead coil. Didn't want to spend a lot of money so just looked on Amazon for something with a lot of good reviews. Think we paid like $35 for FOUR.....

It was 2 years ago. Still runn

Unless they're OEM, you never know.

I will tell you my sons 2014 Kia Rio had a dead coil. Didn't want to spend a lot of money so just looked on Amazon for something with a lot of good reviews. Think we paid like $35 for FOUR.....

It was 2 years ago. Still running.
 
We use quite a few NGK and Delphi coils without too any issues. If the cost difference isn't too great, the Blue Streak coils seem to be top quality.
 
Get the GM OE coil and be glad you can still get OE coils for your car :)

You only need one coil for your Aveo.

You might also need spark plugs, depending on when you last replaced them. If you need them, get Denso Iridium TT and NGK wires (or GM/OEM if you want, as they are also still available).
 
Get the GM OE coil and be glad you can still get OE coils for your car :)

You only need one coil for your Aveo.

You might also need spark plugs, depending on when you last replaced them. If you need them, get Denso Iridium TT and NGK wires (or GM/OEM if you want, as they are also still available).
I changed the plugs and wires a year ago. They were also causing missing. I think I bought Denso wires and good old Champion copper plugs. I've been using those Champions for the whole life of the car. Just swap them every 30K miles. I left them in and just gapped as an experiment the previous time. In not too far they started causing missing. Carbon tracking all over the ceramic.
 
I changed the plugs and wires a year ago. They were also causing missing. I think I bought Denso wires and good old Champion copper plugs. I've been using those Champions for the whole life of the car. Just swap them every 30K miles. I left them in and just gapped as an experiment the previous time. In not too far they started causing missing. Carbon tracking all over the ceramic.

The iridium, with its thinner electrode, will require less voltage and thus less wear on the coil. So, with old school "cooper" nickel plugs in it, you will put more stress on the coil, which already seems to be prone to failure even with the correct plugs.

The OE plugs on your Aveo seem to be NGK V-Power, according to the Rock Auto catalog and the pictures of the ACDelco part number (and NGK's own description). They have that V cut in the center electrode, for the same effect, but the lifespan is of course quite short.

On page 299 of the 2006 Aveo owner's manual, it says to use NGK iridium.

Denso has a U-groove nickel plug but instead of cutting into the center, it has a U shape cut in to the ground. This might last longer than the V-Power, even if not as long as iridium.

But the Denso TT seems to be worth using in your case, and might even help with coil life. NGK's ruthenium for your Aveo also has that design.
 
The iridium, with its thinner electrode, will require less voltage and thus less wear on the coil. So, with old school "cooper" nickel plugs in it, you will put more stress on the coil, which already seems to be prone to failure even with the correct plugs.

The OE plugs on your Aveo seem to be NGK V-Power, according to the Rock Auto catalog and the pictures of the ACDelco part number (and NGK's own description). They have that V cut in the center electrode, for the same effect, but the lifespan is of course quite short.

On page 299 of the 2006 Aveo owner's manual, it says to use NGK iridium.

Denso has a U-groove nickel plug but instead of cutting into the center, it has a U shape cut in to the ground. This might last longer than the V-Power, even if not as long as iridium.

But the Denso TT seems to be worth using in your case, and might even help with coil life. NGK's ruthenium for your Aveo also has that design.
Interesting. Even so, the surprising thing is that the OE coil lasted over a quarter million miles using the copper plugs.
 
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