Replaced both IWEs and have checked for vacuum leaks (perfect long-term vacuum). Have what sounds like a partially engaged IWE that changes proportionally with speed, originating from LEFT FRONT. IWEs are not engaged in 2WD and are solidly engaged in 4WD, when checked idling on jack stands. Makes noise in 2WD and in 4WD (auto and high) modes. Differential fluid is full and clean. Noise momentarily QUITS when making turns to the LEFT at speed. Noise returns when turn lessens. 231k miles on truck. No clunk sounds when placed in drive or reverse. Bearing grease looked good when IWEs were replaced. CV Joint, bearing, diff gears? Any advice? TIA.
CV Joint or Bearing? 2017 EL.
- Thread starter Alliance
- Start date
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Jack the front of the vehicle up and place on jack stands. Then grab front tire at 12 and 6 o’clock and attempt to wiggle, then check at 3 and 9 o’clock. If there’s “play” at the 12/6 position it’s most likely a wheel bearing, if there’s “play” at the 3/9 position it’s a tie rod end(or some other steering component)
PLEASE BE CAREFUL! I have had a whole wheel, bearing, disk brake, and caliper come off on me during a test. Thankfully it wasn’t on the road with the person that somehow managed to drive their vehicle to my house.
Suspension is the one thing I’m good with.
PLEASE BE CAREFUL! I have had a whole wheel, bearing, disk brake, and caliper come off on me during a test. Thankfully it wasn’t on the road with the person that somehow managed to drive their vehicle to my house.
Suspension is the one thing I’m good with.
The front was up on jacks this past weekend when I was checking the vacuum lines and performance of the IWEs. There is no 'play' in any orientation. The vehicle was aligned 6 months ago with no worn steering components. Normal tire wear at all 4 corners.
The fact that the sound disappears entirely when making a left hand turn at highway speeds, which leads me to think the centrifugal force is fully disengaging the front left IWE. Again there is no vacuum leak in any portion of the system. The noise is consistent when driving straight, turning right, or turning left (at slower speeds). Does this help point to anything?
The fact that the sound disappears entirely when making a left hand turn at highway speeds, which leads me to think the centrifugal force is fully disengaging the front left IWE. Again there is no vacuum leak in any portion of the system. The noise is consistent when driving straight, turning right, or turning left (at slower speeds). Does this help point to anything?
Replaced the vacuum check valve even though the vacuum test indicated no leaks.
Replaced the left front wheel bearing.
Checked the front diff fluid level - full, clean and clear.
Topped off the transfer case fluid.
The noise still exists except when making left hand turns (noise vanishes entirely).
Ideas????
Replaced the left front wheel bearing.
Checked the front diff fluid level - full, clean and clear.
Topped off the transfer case fluid.
The noise still exists except when making left hand turns (noise vanishes entirely).
Ideas????
