Workhorse W24 spark plugs, wires and coils
I have a 2007 Itasca Suncruiser 38T on a Workhorse W24 chassis. I, like others, have had issues with the heat negatively affecting the spark plugs, wires and coils. I have been dead in the water twice...
Forum Discussion
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.
