strange noise/vibration when downshifting
I just purchased a 1999 Itasca 32T class A from a private party. It has about 55000 miles. Just made a 700 mile trip and while traveling, noticed a terrible vibration (like a bumping) when going up a...
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Got the vibration problem fixed. Turned out to be a spark plug wire was not pushed all the way on to the plug, there was about a quarter inch gap. So the engine was probably only running on 7 cylinders when under load. Sh runs just fine now. Hope that didn't cause any damage to the plug or cylinder...
