anyone having trouble with spark plug wire sets?

[PTBishop]

ok, so here's the story, i wanted to tune my Exploder up because, i wasn't sure if it had been done. I got the plug wires from car quest, i got premium wires, the lifetime warranty, they screwed up, one caused a major miss. so i returned them, went directly for the motorcraft wires, i figure that would be the best here. but this morning i had a bad miss. i put my old plug wires on and there it goes, no miss, runs fine. so why is it that i am having so many problems with these new wires.

 

[Rhett]

Be sure you have to firing order right. Also make sure each wire goes to the correct plug. If I recall, the shortest one needs to go to cyl#6 and so forth...it's been a while since I had to mess with plugs n wires on my truck, because I use Jacobs wires and Motorcraft plugs Install those, and forget about them.

 

[marragtop]

Make sure each wire gets seated properly on the plug end. You have to hear/feel that 'snap' for it to be right. Also, make sure all the wires are completely clear of the exhaust manifolds.

 

[PTBishop]

check to all, i work in the automotive industry, i know how to do a tune up. i just am wondering why all these spark plug wires are not working properly, yet, when i put the old ones on, they work just fine.

 

[Rhett]

Maybe the Motorcrafts were defective? Maybe the parts guy gave you the wrong wires for your 1st gen OHV 4.0? I have always had good results with Motorcraft wires....

Your coil pack must be ok, or else your old wires would do the same.

 

[Jason94sport]

check to all, i work in the automotive industry, i know how to do a tune up. i just am wondering why all these spark plug wires are not working properly, yet, when i put the old ones on, they work just fine.

Doesn't mean anything Could have easily missed the contact on one plug. Try the new ones again & if it misses, pop the hood while running & wiggle each wire till you find it. If that doesn't do anything, try another set of wires. If those don't work stick the old ones back on & live with it.

I had the same thing happen with my Taylor wires & I just had to push a bit harder to get the wire contacting the plug.
No problems since.

 

[PTBishop]

it may be something that has to do with my truck, for some odd reason it just wont take the new wires and it's really bugging me....

 

[ExplorerDMB]

It'd be nice to have a scanner to look at the misfire count and if it's missing a lot on one, then try to change the wire with another and see if that cylinder starts to miss.

-Drew

 

[Rhett]

Maybe the parts guy gave you 4.0 SOHC wires...