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Did you remove and clean the filter in the steering rack solenoid control valve? Did you remove the power steering fluid reservoir and flush it out with a brake cleaner like solvent to clean the filter inside it? These two filters must be kept clean or fluid pressures will build up excessively and your new pump could leak soon again and the steering rack could develop leaks too. ← Hi Monarch. Can you show us how to remove that filter in the steering rack on 91 LS400. Thanks

I had 91 Ls400 trying all combination but failed to make parking light turn on both side in front of the car. Light bull is OK. Any suggestions. Thanks.

I think your heater control valve got stuck. It located at the firewall of the engine. To test this valve by pulling in and out the steel cable attached to this valve. It suppose moving freely if not , try to pull the cable out as far as you can( around 5'oclock) try to open the valve then start the engine let it warm up with temp control in manual mode and temp at 85 deg. If the heat comes out then you have the problem in this area. Either the steel cable need to be lubricated or valve need to be replaced.