Mystery Machine
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Joined: Jan 2013
Posts: 2,215
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From: North Lake Tahoe
I couldn't agree more!
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Senior User
Joined: Mar 2006
Posts: 342
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From: Rolla, MO
Here are some of the causes of vibration I have personally experienced on two of my vehicles:
It helps to know the frequency of the vibration. Half-RPM is usually combustion related, RPM can be engine/torque converter related, influenced by speed only (coasting at different speeds in neutral) can be driveline, axles, wheels, tires, brakes, etc....
Noise, Vibration, and Harshness (NVH). There are Android apps (maybe iOS as well) that can be downloaded [LINK][LINK], this would allow an Android device to record the sounds your truck makes. If you were to try this, I would suggest an external microphone attached to something hard on the truck, away from the firewall (no need to get engine noise).
- Rust growing behind the rotors - this can cause spreading in there, making the wheels wobble a little.
- Bent rims.
- Driveline not balanced.
- Bent driveline.
- Damaged U-joints.
- Warped rotors from siezed caliper slide pins.
- Loose front end components.
- Under-inflated front tires.
- Tire imbalance.
- Poor "automotive" front end alignment on a "truck".
- Uneven tire wear (caused by many of the above, as well as bad shocks/springs)
It helps to know the frequency of the vibration. Half-RPM is usually combustion related, RPM can be engine/torque converter related, influenced by speed only (coasting at different speeds in neutral) can be driveline, axles, wheels, tires, brakes, etc....
Noise, Vibration, and Harshness (NVH). There are Android apps (maybe iOS as well) that can be downloaded [LINK][LINK], this would allow an Android device to record the sounds your truck makes. If you were to try this, I would suggest an external microphone attached to something hard on the truck, away from the firewall (no need to get engine noise).
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