I have a '97 E300 diesel with about 135k miles. When holding fairly constant speeds of between 35 and 50 mph (with or without cruise control) the engine surges at about one surge per second. It does not happen at low speeds or at high speeds. And it does not always do it. At first I thought it might be a bad batch of diesel, but after 3 refills it still does it. Any suggestions?
- posted
19 years ago