30 Oct 11 18:40, TOM WALKER wrote to ROY WITT:   
      
      
    RW>> MH> I didn't know that the Hemi engines had two spark plugs per   
    RW>> cylinder.   
    RW>> MH> I do know that when you eventually change the plugs, they   
    RW>> typically   
    RW>> MH> replace the coils at the same time.  Can be a bit on the   
    RW>> expensive   
    RW>> MH> side..   
      
    RW>> Figure $112 for a double set of platinum plugs and about $50 per   
    RW>> coil. Ford uses a coil-on-plug setup that also requires replacement   
    RW>> at plug change time. At least they don't have to worry about   
    RW>> replacing plug wires. Sometimes those Ford coils die long before the   
    RW>> plug is worn out.   
      
    TW> That is not to bad fro a good plug.   
      
   I havn't bought platinum plugs in a while, so I thought $7 each would be   
   appropriate.   
      
    TW> Fro my Chev S-10 V-6 I paid $17 Each for a set of Iridium plugs when   
    TW> I got the Coil and Wires replaced.   
      
   Make that $272 for plugs.   
      
    TW> Then I dumped the truck when anothetr problem surfaced, Intermetent   
    TW> NON start problem, as I was tired of dumping money into it.   
      
   Starter or CPU electrical problem? 2007 or 2008 GM trucks, Tahoes and   
   Suburbans had that same problem. I'd get calls to jump start them and a   
   dead battery wasn't the problem...they were usually towed to the dealer   
   for repair. Never did find out exactly what that was all about.   
      
                   R\%/itt   
      
      
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