1994 Ford F150 V8 Two Wheel Drive Automatic
I have a vibration that vibrates the whole truck when it shifts gears at low rpm under load barely pushing on gas pedal. It's fine running down the highway. The worst vibration is between 37 and 45 mph. After 45, it runs smooth. I've checked transmission mounts, torn the rear end apart, and checked the tires. I looked at the harmonic balancer and it's not loose (not sure what to look for). The motor mounts do not move when I jack it up under the oil pan. Do you have any idea what can cause this vibration? It vibrates so bad that a water bottle will vibrate up out of the cup holder.
I have a vibration that vibrates the whole truck when it shifts gears at low rpm under load barely pushing on gas pedal. It's fine running down the highway. The worst vibration is between 37 and 45 mph. After 45, it runs smooth. I've checked transmission mounts, torn the rear end apart, and checked the tires. I looked at the harmonic balancer and it's not loose (not sure what to look for). The motor mounts do not move when I jack it up under the oil pan. Do you have any idea what can cause this vibration? It vibrates so bad that a water bottle will vibrate up out of the cup holder.
Mar 11, 2010 at 2:42 PM