I don't want this message to be too long or too rambling. If it gets that way, I apologize in advance.
On the way up to Midway Motorhomes in Grand Rapids to get some warranty work done, our check engine light came on and the MH would lurch when the RPM's got up to 3000, which it was doing more frequently than usual. We were traveling in a driving rain for about 4 hours.
Midway worked on the Newmar items and sent us to Bridgway Power for the Workhorse problems. We are sure glad they did!!!! The #3 and #4 wires had burned off. Six of the eight plug wires were overheated. Bridgeway replaced all 8 spark plug boots and the plug wire set. They also installed an air cooling kit, one to each side of the engine to try to prevent the wires from becoming overheated again.
It was also determined that we needed the water diverter kit and new air filter. That is a Newmar problem, so Midway was responsible for that work. (Yes, I had previously installed the gasket around the hood opening.)
Our 2005 Kountry Star has less than 10,000 miles. My message has three points.
1) If you have the 8.1 Workhorse, you might have overheated plug wires that drastically cuts performance. (Essentially, I was driving with only 6 cylinders.)
2) Also, the Newmar water diverter kit might be something you need, even if you have "protected" yourself with the "gasket fix" as promoted by one of the moderators on this forum.
3) Don't drive in rain, sleet, or snow unless absolutely necessary.
Our appointment at Midway was to fix or replace a leveling jack that would not retract. All that other work that I described was unplanned.
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