2010 vs. 2011 Spark Plugs - Chevy Traverse Forum: Chevrolet Traverse Forum
 
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post #1 of 6 (permalink) Old 01-09-2011, 09:16 PM Thread Starter
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2010 vs. 2011 Spark Plugs

Does anyone know what the difference between the 2010 and 2011 spark plugs are? Why would they be different? I was just comparing the 2010 owners manual to the 2011. They have different part numbers for the spark plugs.

2010 - AC Delco 41-107
2011 - AC Delco 41-109

2010 Traverse 1LT<br />Built 3/10 in Lansing, MI<br /><br />Ontario, Canada
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post #2 of 6 (permalink) Old 01-09-2011, 09:17 PM Thread Starter
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Re: 2010 vs. 2011 Spark Plugs

Also, the cabin air filter is added to the 2011 owner's manual, under maintenance replacement parts.

2010 Traverse 1LT<br />Built 3/10 in Lansing, MI<br /><br />Ontario, Canada
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post #3 of 6 (permalink) Old 01-09-2011, 09:19 PM
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Re: 2010 vs. 2011 Spark Plugs

Not sure about the plugs, but there has been some talk about a cabin filter on other threads
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post #4 of 6 (permalink) Old 01-10-2011, 09:02 AM
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Re: 2010 vs. 2011 Spark Plugs

Maybe the actual spark plug didn't change, but the number of the part changed. GM has been good about this in the past.

Greg.<br /><br />2010 Red Jewel LT2 (Spring Edition)
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post #5 of 6 (permalink) Old 01-10-2011, 10:32 AM
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Re: 2010 vs. 2011 Spark Plugs

They have changed the operation heat range of the spark plugs. Looks to me as if they went up two heat ranges on the plugs. They may have changed nothing as GM has never released to much detail on their heat ranging on plugs.

They have most likely found the engine runs better with hotter plugs.

I will know more when I change mine. But looks like we have another option we can use.

Numbering

* 1st number denotes THREAD SIZE
* 2nd number denotes HEAT RANGE

In the early 1990s, an all-numeric, identification code was developed to ensure that the proper spark plug would be selected for replacement in specific engine applications. The numeric code does not in any way correspond to the heat range of the spark plug. Therefore, selection of a spark plug with a different code number is not recommended. The heat ranges may be drastically different between two different plugs, and engine damage or poor performance may result. See your local installer or retailer for details.

The prefix “41” stands for the manufacturer’s product line (e.g., 41 = spark plug)
Numbers after the prefix indicate the type of spark plug and also the specific application:

* 100 – 199 = Iridium
* 600 – 699 = Resistor
* 800 – 999 = Double Platinum

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post #6 of 6 (permalink) Old 07-05-2012, 05:26 PM
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Re: 2010 vs. 2011 Spark Plugs

NGK told me it is the same plug just an engineering change. The change is for the fuel you can run on a 2011 Traverse, E85. The heat range, reach (dimension) and material is the same. I did say i had the 09 but i wish i had said i had the 11 and wanted to use the cheaper 09 plug.
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