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1967 - 1972 F-100 & Larger F-Series Trucks Discuss the Bumpsides Ford Truck

Tune up question

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Old Mar 5, 2013 | 10:13 PM
  #1  
carchub's Avatar
carchub
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Tune up question

For my tired 390, I was thinking I'd might as well get new spark plug wires when I get new spark plugs. What I'm unsure about is the idea of just hooking up new wires on the distributor...would the new wires somehow strain the other, older electrical parts? Or am I thinking backwards on this...

Anyways, what would some of you suggest for spark plugs (brands) and/or wires? Is it possible to just straight buy 8 plug wires by themselves?

Thanks,
carchub
 
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Old Mar 6, 2013 | 10:18 AM
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I prefer Motorcraft or Autolite plugs, but like oils you will get a vast array of opinions.

New plug wires will not hurt anything else. If they are bad enough, it will run MUCH better after.

Plug wires comes in a sets of 8(for an 8cyl engine), plus a coil wire(which needs replaced also). You can't buy them individually.
 
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Old Mar 6, 2013 | 06:07 PM
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Thanks Freightrain! Exactly what I wanted to find out. And yeah my current wires are mis-matched and whatnot, at least they seem to be, because some ends are different.

Plus a couple barely make any contact and look like they could fall off from normal engine movement. I'm thinking my occasional backfire may have something to do with that (but I'm not counting on it, that'd be too simple a problem, right? haha).
 
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Old Mar 6, 2013 | 07:35 PM
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It's a good idea to replace the distributor cap, rotor, spark plugs, and plug wires, all at the same time.
 
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Old Mar 6, 2013 | 08:45 PM
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Those were my thoughts initially, and I'll end up doing that in the future. For now I'll just do this little tune up with the money I have and get a job in the summer. Thanks for the input
 
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Old Mar 9, 2013 | 10:21 AM
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So these would be an okay idea?

Autolite - Part Details
 
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