Workhorse W24 spark plugs, wires and coils

It is usually just the plug wire. It is highly unlikely a coil is bad. Replacing the plugs can be a real pain, especially if you have never done this before. I would just replace the wires and have the workhorse vent kit installed. This solved mine.

this is michbill again.
Thanks for the information.
I have never even changed the plugs in a car, so I'm at a little disadvantage. Does anyone know if there is a step by step someplace that would tell me how? Also how do I know if it is just the plugs, wires or the coil that needs replacing? Do you have to replace all at the same time?
Thanks
Bill

mchero wrote:
Just make sure to replace one plug at a time. That way you won't forget what goes where.


RM

That will not be a problem with this engine. each wire is the same length and goes to each coil pack above the plug. Very simple.

Just make sure to replace one plug at a time. That way you won't forget what goes where.


RM

catkins wrote:
I had the very same issue and Taylor plugs did not help. The engine simply still got too hot and fired even them. There is a air dam kit that once installed, solved my problem. Pulls more air into the compartment as you go down the road. Four years and no new issues. Good luck!

Curious if you used the standard wires or the racing set with boots and shields.

I had the very same issue and Taylor plugs did not help. The engine simply still got too hot and fired even them. There is a air dam kit that once installed, solved my problem. Pulls more air into the compartment as you go down the road. Four years and no new issues. Good luck!

I solved the problems on mine with a set of Taylor performance wires from Summit racing. You can swap them, its very simple. I had no more wire problems after this.

Suggest you visit this site
Many folks have done exactly what you are asking


Workhorse link

Seeing that some of the more knowledgeable members have not responded yet I will try to add some value. First of all it is throwing any codes? If it is you have a place to start. On my tow car it started running real rough then misfiring would occur. It was code 301 which is a misfire on #1 cylinder. This meant it was either the plug, wire or coil pack. I swapped the coil packs around but I still got code 301. When I swapped plugs the code went to 303 which meant a misfire on #3. So from this I figured it was the plug. When I looked real close I could see a black mark on the porcelain so bought new plugs and all was well again. On my 454 tbi after adding headers and high temp wires 10.4 MM thick with fiber glass soxs to insulate the boots on the plug wires this solved the heat problems and changing the plug wires every year. Hope this helps.