Spark Plugs
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Spark Plugs - 7/23/2007 10:22:07 PM
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niftyguy239
Posts: 98
Joined: 5/16/2007
Status: offline
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Which plug is the best for the 4.7L?
I'm leaning towards the Bosch Platinum Ir Fusion plugs, but I also trust Champion a lot better.
The big thing about the new Bosch's is they combine Platinum and Iridium in the core.
http://www.boschautoparts.com/Products/SparkPlugs/IrFusion.htm
Can anyone suggest what they know or use?
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2006 Dodge Dakota SLT Quad Cab Silver
4.7 V8 4x2 Auto
2000 Dodge Durango SLT 5.9L V8 4x2 Charcoal Auto
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RE: Spark Plugs - 7/23/2007 11:03:16 PM
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Frenchy
Third Gen Dakota King
Posts: 5346
Joined: 12/11/2003
From: United States
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platinums suck in these engines....
I'd go with Autolite 3923.... myslef and a few others have them... and they help a lot...
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RE: Spark Plugs - 7/23/2007 11:32:17 PM
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Night_Runner
Posts: 2589
Joined: 10/11/2006
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im not the engineer here, my dad is and he is sleeping..i know what plugs do, im not stupid, but how can dif plugs make a dif..explain please
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RE: Spark Plugs - 7/24/2007 5:35:51 AM
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graythang
Posts: 615
Joined: 7/29/2006
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I have read many times that our plugs in the 4.7 where gaped wrong from the factory. I have not pulled my plugs yet to check them. I do know if they are all over the place then that would be a problem. I will end up changing them out round 30k but with what I’m not sure until the suggestions point to a plug that seems to work well for most. Autolite always got good reviews by owners and platinum’s always where over rated especially for the money.
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Graythang II
Sleeps a necessary waste of time.
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RE: Spark Plugs - 7/24/2007 5:36:13 AM
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rick4dak
Posts: 163
Joined: 6/23/2006
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A quick explaination of why platinum - With it as part of the electrode, the plugs can run hotter without burning the electrode. Hotter plugs burn the carbon deposits off better than colder plugs. Advertizing 100,000-mile plug life is viewed as a good thing.
Personally I have tried Autolite 3923s and while the engine runs smoother with them, I suspect that I can get better performance with a different plug. I'll swap another brand in as tima allows and complre results.
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RE: Spark Plugs - 7/24/2007 6:59:48 AM
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superdak05
Posts: 2651
Joined: 3/12/2006
From: ct.
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i had the platnum plugs for about 1 month and got rid of them. i lost between 45/50 miles to a tank of gas. went back to the factory champions and got my milage back but every now and then the truck would idle funny at a stop sign or traffic light. swithced out the factory champions for the autolite 3293 and what a difference. much smoother idle and still the same great gas milage. other thing i noticed is with the a/c on and you stomp on it the truck doesnt hesitate like the champions did. squats the ass end and away you go. these are good plugs and will be keeping them all 8 at walmart were 10.50. the plats were like 3.50 a plug for garbage.
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thats right, i did it so what, cry two tears in a bucket, @#$% it, lets take it to the stage
13.7 / 101.3 in the 1/4 mile
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RE: Spark Plugs - 7/24/2007 9:39:32 AM
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curtiplas
Posts: 1357
Joined: 2/23/2007
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Will those work for the V6?... and are they just called 3293 or is there a brand?? Also are all the plugs on the V6 easy to get to?
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RE: Spark Plugs - 7/24/2007 10:18:28 AM
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DakotaStone
Posts: 3511
Joined: 8/15/2005
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From what I've been told the platinums are bad for our trucks.... period.
I've been thinking about the iridium myself, but I haven't heard of anyone using them yet.
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RE: Spark Plugs - 7/24/2007 12:32:51 PM
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trucky
Posts: 705
Joined: 9/26/2006
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curt they are called autolites and the part number is 3923, specifically for our motor. i swapped out the plugs myself when i was 19, you'll need tools and time but its possible. if im not mistaken they are placed the same way as our v8's. however, i dont know if 3923 is for a v6...autozone has it alllll on their computer so ask them.
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