are you sure its the pump that is making the noise? there is a idler pulley on the top in the middle next to the pump that could be bad. that just happened to me and I thought it was the pump. the bearings went bad in that pulley and it was like $56 for a new one from parts store.
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Originally Posted by nawls400
so i know i've been told by a few people what i might need to check out with the whining noise i'm having in my 91 ls400...the thing is that I have had no difficulty in turning the wheel, no smoke, no nothing...everything still seems normal except this noise from the pump and I've been told that i just need to clean the solenoid, i've found some forums and info on cleaning it, but could anyone else offer any insight as to why it would be whining and me not experience any problems or leaking...because i've checked the fluid level and it is still high so that is ruled out...and it's not hard to turn the wheel (or maybe it's just that I haven't experienced these problems yet?)
...and no i'm not ignoring the advice on cleaning the solenoid...i'm just trying to get other possibilities because I haven't necessarily had the time to jack up my car and clean the solenoid so any other information would be greatly apreciated, also do i need any special tools to clean the solenoid?
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