Question about Lexus LS 400
Posted by Anonymous on
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Posted on Jan 02, 2017
Yes, and it probably is your wheel bearing. Hearing a sound like a chain dragging is classic. You may also hear a clicking noise or chain dragging noise when turning to the left or right.
Look under the car and see if the rubber boots that surround the axle near the tires are cracked and leaking grease. If so, it is almost a certainty that the bearings are bad as you have lost grease and thus lubrication to the bearings.
Posted on May 28, 2009
The whine is most likely your power steering pump. Check the fluid in the pump. If you are low on power steering fluid you may have a leaking hose or fitting or the seals in the pump may have began leaaking. If you continue to run the auto without power steering fluid you will burn up the power steering pump very quickly.
Posted on Jul 06, 2009
It is probably the belt slipping around the pulley on the power steering pump.
Just have that replaced and it should be fine.
Hope that helps,
Posted on Sep 19, 2009
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SOURCE: whining when i press gas
normally, the only part of your automatic transmission that will make a whining noise is the pump. it usually whines when iether the fluid is low or more commonly when the transmission oil filter is getting plugged up.
the power steering pump will also make a whining noise too.
turn the wheel all the way to the right and hold steady pressure against the stop. this puts maximum force on the power steering pump and, if the power steering pump is the one making the whine, it will change the sound of it. (usually louder).
if the trans pump is making the whine noise, it should sound different in neutral compared to drive. this test will really only work if it make the noise without the vehicle moving. if it wont do it at idle hold the rpms at 2000 or so.
if you decide the noise is coming from the transmission, and the transmission filter has not been replaced (assuming you installed a used transmission), replace the filter by removing the oil pan.
oh and also, if it is the power steering pump you should be able to make it make the whining noise while the vehicle is stationary. if it wont make noise unless its moving its not the power steering pump.
Posted on Mar 23, 2010
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