I understand your situation, but I dont suggest using stop leak products. If it is on the resevoir, which is the low pressure side, check the clamps fo the hoses, you may be able to repair it with a simple clamp. Anything that chnages the integrity of the seals will eventually effect performance
February, 18, 2009 AT 4:57 PM
Had the same problem on my 98 ES300. It turned out to be a leaky/rusted line. Started out as a small leak front pass side and eventually was leaking about a quart every 200 miles. Had to remove the steel guard/plate under the front to find it but it was the low pressure return line rusted right thru. Beats the $430 for a rebuilt rack or $300 for a new pump (parts only no labor) cost me $5 in rubber hose and 2 clamps, cut out the rusted section with dremmil and spliced in new hose.
They wanted $100 for the OEM part.
April, 8, 2009 AT 7:32 PM
Just some additional information about power steering hose leaks.
I have a slight leak with my 1996 ES 300 and the dealer said it was really not a problem yet.
The estimate to fix the hose was $500 at portland lexus.