1988 Westfalia sputters and skips after hitting rough roads
I have an 88 Westy with a mysterious problem that no one has been able to fix. When I travel over rough roads (cattle guards, potholes, etc.) my van freaks out! The RPMs start jumping around - from below 1000 to over 3000, the engine loses and gains power repeatedly, and the car lurches almost to a stop and then regains power again and again. This only happens on rough roads. Sometimes if I pull over and shut the engine off, it seems to reset things and fix the problem, but not always. It can last for miles! Any ideas what is causing this and/or how to fix it would be much appreciated