turbowop
Well-known member
Help me brainstorm to figure this out...
Tires and brakes are new, yet this was an issue with the previous set as well. Engine has no balance shafts and the timing belt is perfectly in time.
At any speed while coasting, car has zero vibration. At any engine RPM in first/second gear, car has no vibration. At higher speeds (freeway, 55-75mph or so) and under acceleration, the car suffers from some type of vibration that can be felt throughout the whole car. As soon as I let off the throttle, vibration goes away. Axle boots are all good and I've gotten underneath the car to grab the driveshaft joints and shake them. No visual problems have been found.
Is it logical to think that a front or rear motor mount may be getting soft and allowing too much flex under load at speed, causing this issue due to higher driveshaft angle? They are the stock mounts. Anybody else ever experienced this problem?
Tires and brakes are new, yet this was an issue with the previous set as well. Engine has no balance shafts and the timing belt is perfectly in time.
At any speed while coasting, car has zero vibration. At any engine RPM in first/second gear, car has no vibration. At higher speeds (freeway, 55-75mph or so) and under acceleration, the car suffers from some type of vibration that can be felt throughout the whole car. As soon as I let off the throttle, vibration goes away. Axle boots are all good and I've gotten underneath the car to grab the driveshaft joints and shake them. No visual problems have been found.
Is it logical to think that a front or rear motor mount may be getting soft and allowing too much flex under load at speed, causing this issue due to higher driveshaft angle? They are the stock mounts. Anybody else ever experienced this problem?