I have a 2005 Dodge Caravan, 85,560 miles on it, and VERY intermittently, while driving at highway speeds, I will get a really bad vibration through the entire vehicle. No set time it lasts, some times long (miles), some times short (mile). No indicator lights come on, car is not getting hot. Oil changes have ALWAYS been regularly done with filter change and fuel injector cleaner.
It happened today on my way to work, for along time. Don't really think it is my engine, cause this time, when I pressed on the brakes, I felt a strong vibration through the brake pedal. Not sure where to start looking for what is wrong. Since it is so intermittent, if I take it to the dealership, they will just turn around and tell me nothing is wrong (like they always do - 4 different issues I had, I had to take it back 2-3 times each before they fixed it right.)
It would help if I could tell them where to begin to look, if anyone has a clue for me. Would it be brakes, (tires are all brand new and balanced), wheel bearings, tie rods, ball joints, CV joints, suspension?
The only thing that I know is wrong with the car is a very small gasket leak around the water pump. But if this would the issue, would the car overheat due to the coolant not being pushed through the car?
Thanks for any help,
-Tom Rogers