Spark plug gap and firing order

2000 GMC JIMMY
105,000 MILES
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DEREK926
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Spark plug gap and firing order for the 4.3L Vortec GM engine?
Jan 11, 2012 at 10:56 PM
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RASMATAZ
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Here is a video of how to gap your spark plugs:

https://youtu.be/c9_NVXiwvYg

VIN W is .060.

VIN X is .045.

Here is a guide to show you how to change the spark plugs:

https://www.2carpros.com/articles/how-to-change-spark-plugs

Here are the spark plugs on Amazon for $6.65 each - AC Delco:

https://www.amazon.com/gp/product/B000NWA6TU/ref=as_li_qf_sp_asin_il_tl?ie=UTF8&tag=2carprcom-20&camp=1789&creative=9325&linkCode=as2&creativeASIN=B000NWA6TU&linkId=7599668c49e6df38be1a1eb7c0d32f64

Please let us know if you need anything else to get the problem fixed.

Cheers
Jan 11, 2012 at 11:14 PM
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DEREK926
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Thanks bro, great site! :)
Jan 12, 2012 at 3:12 AM
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MERLIN2021
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Heres the line up, starting with 2.8, 3.1, 3.8, 4.3.


https://images.2carpros.com/forum/automotive_pictures/62217_JimmyFO_1.jpg


https://images.2carpros.com/forum/automotive_pictures/62217_3_7.jpg


https://images.2carpros.com/forum/automotive_pictures/62217_38fo_1.jpg


https://images.2carpros.com/forum/automotive_pictures/62217_43fo_1.jpg

Sep 22, 2017 at 4:34 PM (Merged)
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BLUELIGHTNIN6
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4.3L engine. Firing order: 1-6-5-4-3-2. Distributor rotation: clockwise.


https://images.2carpros.com/forum/automotive_pictures/261618_1_38.jpg

Thanks for using 2CarPros.com!
Sep 22, 2017 at 4:34 PM (Merged)
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MLLOGAN07
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Six cylinder four wheel drive automatic 184,00 miles.

Spark plug soaked with gas and scanner says vehicle running on five cylinders.
Sep 22, 2017 at 4:35 PM (Merged)
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BLACKOP555
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find the cylinder that is flooding and check for spark on the cyliinder. let me know what you find before continuing.
Sep 22, 2017 at 4:35 PM (Merged)
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BILL ELLIOTT
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Six cylinder four wheel drive automatic 189,456 miles.

it is a (w) 4.3 engine. One book tells me .045 gap the other book tells me .060.
Sep 22, 2017 at 4:35 PM (Merged)
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RASMATAZ
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Go with .060.
Sep 22, 2017 at 4:35 PM (Merged)