courtesyvan
New Member
- Joined
- September 17, 2020
- Messages
- 5
- Reaction score
- 4
- City, State
- Oakland, CA
- Year, Model & Trim Level
- 1997 Aerostar XLT 2WD
'97 2WD extended with the 4.0l engine, 155,000 miles. Driving anywhere over 15mph gives this slow shudder, like a combination of vibration and a jolt. Most noticeable when coasting over smooth pavement between 40 - 60 mph. I'd say I feel it about once every 1 or 2 seconds, at a pretty steady rhythm, feels like the whole van is shuddering. Doesn't seem to be connected to the steering wheel in any way.
So far I've replaced the transmission crossmember and tranny mount since they seemed worn out, but no dice. Front bushings and ball joints, shocks and springs all around have less than 5,000 miles on them. Engine starts up easy and runs steady and cool, transmission shifts well and pulls well, no hard shifts or clunking. I had all four tires replaced and balanced just out of caution, but that didn't solve anything either. Motor mounts and driveshaft U-joints seem fine too.
I've had two separate mechanics inspect the car on the lift. One of them also took it on a test drive, said he could feel the shudder but had no idea what could be causing it.
At a total loss as to what to look at next, any advice would be appreciated!
So far I've replaced the transmission crossmember and tranny mount since they seemed worn out, but no dice. Front bushings and ball joints, shocks and springs all around have less than 5,000 miles on them. Engine starts up easy and runs steady and cool, transmission shifts well and pulls well, no hard shifts or clunking. I had all four tires replaced and balanced just out of caution, but that didn't solve anything either. Motor mounts and driveshaft U-joints seem fine too.
I've had two separate mechanics inspect the car on the lift. One of them also took it on a test drive, said he could feel the shudder but had no idea what could be causing it.
At a total loss as to what to look at next, any advice would be appreciated!