StevePSD
NAXJA Forum User
- Location
- Ridgecrest, CA
I have a 99 XJ with 93K miles, bought it 3 weeks ago. Replaced all fluilds and filters, including front rotors/calipers/pads.
I have a light 'wirring' (sounds like brakes dragging - but don't seem to be) sound that seems to come from the left front wheel. I replaced the calipers/rotors/pads (semi-metallic) when I bought it. When I had the wheel off to replace the rotor/caliper i checked the hub (but did not remove it) and it rotates freely, there is no play when grabbing the tire and trying to rock it.
I jacked up all 4 wheels and engaged 4WD to see if I could isolate the noise - no luck.
I swapped tires off my '85 XJ, the noise is still there.
The noise becomes noticable at about 35MPH and above. It only varies with road speed, engine speed makes no difference, neither does being in 2WD or 4WD Hi or Lo. Shifting into netural while moving makes no difference. I have tried to load each wheel by veering sharply side to side, but it makes no difference. Only when coming out of a large dip, when the suspension is unloaded does the sound go away, but only for a instant.
The sound is low, but noticable. Could it be a hub starting to fail or...? Any other checkes I can do?
Also, when I jacked up the rear diff, if you grabbed one rearwheel and rotated it there was quite a bit of slack, and a fairly loud clunck in the driveline, quite a bit more than the front. I don't have another to compare it to, to determine if it is normal.
I switched hubs from side to side, hoping that the noise would move as well. When I had the hubs off, they felt fine, with the drivers side (the side my noise is coming from) a little bit tighter when rotating it, than the passenger side.
The axle shafts are in good condition, splines ok, u-joints are free, not binding.
The noise did not move, and stayed the same.
So, running out of options, I removed the front driveshaft. Drove around and the noise is still there (audible at 35mph and above).
What to do next!?!?
I am now reaching for straws....I am thinking about removing the drivers side caliper or pads and see if the noise goes away (I replaced the calipers, rotors and pads, semi-metallic, shortly after I bought the Jeep).
Any ideas on securing the caliper out of the way or removing the pads so I could safely test drive it?
Any other things to check? The*big* item is the front axle. I just changed fluid (75W-140 Redline Synthetic) and there was some material on the magnet. The ring/pinion/side gears looks fine (i.e. no unusual wear noticable, not overheated, no missing teeth, etc) The fluid was clear and clean. Any quick checks I can do on the ring/pinion/bearings?
Thanks for any suggestions?
P.S. I take it this noise is not supposed to be there, is it?
Thanks.
I have a light 'wirring' (sounds like brakes dragging - but don't seem to be) sound that seems to come from the left front wheel. I replaced the calipers/rotors/pads (semi-metallic) when I bought it. When I had the wheel off to replace the rotor/caliper i checked the hub (but did not remove it) and it rotates freely, there is no play when grabbing the tire and trying to rock it.
I jacked up all 4 wheels and engaged 4WD to see if I could isolate the noise - no luck.
I swapped tires off my '85 XJ, the noise is still there.
The noise becomes noticable at about 35MPH and above. It only varies with road speed, engine speed makes no difference, neither does being in 2WD or 4WD Hi or Lo. Shifting into netural while moving makes no difference. I have tried to load each wheel by veering sharply side to side, but it makes no difference. Only when coming out of a large dip, when the suspension is unloaded does the sound go away, but only for a instant.
The sound is low, but noticable. Could it be a hub starting to fail or...? Any other checkes I can do?
Also, when I jacked up the rear diff, if you grabbed one rearwheel and rotated it there was quite a bit of slack, and a fairly loud clunck in the driveline, quite a bit more than the front. I don't have another to compare it to, to determine if it is normal.
I switched hubs from side to side, hoping that the noise would move as well. When I had the hubs off, they felt fine, with the drivers side (the side my noise is coming from) a little bit tighter when rotating it, than the passenger side.
The axle shafts are in good condition, splines ok, u-joints are free, not binding.
The noise did not move, and stayed the same.
So, running out of options, I removed the front driveshaft. Drove around and the noise is still there (audible at 35mph and above).
What to do next!?!?
I am now reaching for straws....I am thinking about removing the drivers side caliper or pads and see if the noise goes away (I replaced the calipers, rotors and pads, semi-metallic, shortly after I bought the Jeep).
Any ideas on securing the caliper out of the way or removing the pads so I could safely test drive it?
Any other things to check? The*big* item is the front axle. I just changed fluid (75W-140 Redline Synthetic) and there was some material on the magnet. The ring/pinion/side gears looks fine (i.e. no unusual wear noticable, not overheated, no missing teeth, etc) The fluid was clear and clean. Any quick checks I can do on the ring/pinion/bearings?
Thanks for any suggestions?
P.S. I take it this noise is not supposed to be there, is it?
Thanks.