I first noticed the 3-4second shudder during mild accelerations sometimes going thru 77mph, but never at steady-state speeds. It runs fine during hard accelerations.
When it happens, it feels like you're on a freeway & you've hit those "wake-up" bumps on the shoulder. The vibration also shows up when traveling on mild grades, but only lasts for a few seconds. I put in premium gasoline, thinking it maybe muffled engine knock, but no luck.
When I put it in park & step on the brakes & gas at the same time, I can't duplicate the shudder. What's the problem?
I first noticed the 3-4second shudder during mild accelerations sometimes going thru 77mph, but never at steady-state speeds. It runs fine during hard accelerations.
When it happens, it feels like you're on a freeway & you've hit those "wake-up" bumps on the shoulder. The vibration also shows up when traveling on mild grades, but only lasts for a few seconds. I put in premium gasoline, thinking it maybe muffled engine knock, but no luck.
When I put it in park & step on the brakes & gas at the same time, I can't duplicate the shudder. What's the problem?
- David S., Ann Arbor, MI, US