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Thread: Anybody have trouble running newer style plugs?

  1. #1

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    I.D.K.?

    Anybody have trouble running newer style plugs?

    I did a tune up on my 2.0 liter and put new platinum plugs in and afterwards it run rough and seemed to miss very bad. I talked to a couple mechanics and they said that the older motors do not run very well with newer platinum plugs. The plugs I am talking about have a very thin looking electrode. Anybody else experience this or know anything about it? Thanks in advance.

  2. #2



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    if they are Bosch - the truck will not run right. Only use NGK or Denso plugs in our trucks. Autolites will work ok, but not as good as the Japanese plugs.
    Pennyman1
    The best Dodge that Dodge never made
    Living the D-50 lifestyle since 1980

  3. #3

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    I.D.K.?
    The plugs I used were ngk but they were the g-power ones with a very thin electrode. I was told you need to run a copper plug because they burn hotter.

  4. #4

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    Recommended OEM plugs: NGK 7133 (#BPR6ES11).
    Last edited by noahwins; 09-20-2015 at 09:34 PM.
    I can help get your truck to pass California smog! PM me.
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  5. #5



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    I am running NGK platinum plugs with no problems in Geronimo - check your cap, rotor, wires(no off brand wires, NGK), and coil. You have a weak spark - also check the spark gap - stock gap is .039 - .043.
    Pennyman1
    The best Dodge that Dodge never made
    Living the D-50 lifestyle since 1980

  6. #6

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    1985 Dodge Ram 50
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    I.D.K.?
    I put new stock plugs and new cap rotor and it straightened right up.

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