Chevy & GMC Vans

Hey there,

So, I have been fighting misfires forever.

I believe that I have figured out that it is my plug wires.

With a little help from younger ears that can hear high pitch snapping noises, I found a plug wire that was arching against the exhaust manifold.

The question is; WHY! They are only 4.5 years old and about 30,000 miles on them.

The bigger questions are; what's up with the two straight boots and four 90 degree boots? Which plugs are suppose to get the straight boots and why?

Any wire suggestions? How about these,

https://www.oreillyauto.com/detail/c/su ... +set&pos=5

Thank you

Those wires will do fine, maybe a little better than stock. Just watch the routing. That is the reasoning behind the mixed boots. If you pulled the original wires you would see which goes where. Sorry I can't help you on that as I haven't had a 6 cyl astro in a few years.

I've recent experience with the secondary wires on a V-6; my 1997 M11006 is equipped with the Vortec 4300. The shortest and longest wires, which go to the foremost left (#1) and aftmost right (#6) cylinders, respectively, have the straight boots as a hedge against burns of the wires themselves due to the design of the exhaust manifolds. With the high-voltage switch, the second-longest wires should go to the fore and middle right cylinders (#2 and #4); the second-shortest, to the middle and aft left cylinders (#3 and #5).

Thank you

So, interesting development .....



I installed the Accel wires. They do look cool and fit much better than the Blue Streak wires that I replaced.



The interesting part is that when I pulled the coil wire off of the cap, the pin in the cap came out with the wire.



Running super smooth now!