P3-Racing

Hi guy's, Just thought I would add my two cents on this issue. I changed my PS Pump and Alternator on my wifes 91 LS400 a few days ago. As stated by almost everyone, I too had a leak as well as Air Control Valve problems. I elected not to change the ACV but to plug it. This is where my experience gets . I pluged the two ports on the ACV with caps and Hose clamps but they kept being blown off after a day or so. I then reinstalled the original lines and plugged the lines where they attached on the top of the engine. This also did not work as the lines continued to be blown off at the ACV. Finally today I removed the ACV completely and plugged the attach point with a 14mm x 1.5 Oil Pan plug with plenty of High Temp Oil Resistant RTV. This finally appears to have stopped my leak. My question is, does anyone know what kind of pressures are produced by the Power Steering Pump? This pump would just blow these lines right off the nipples even with spring clamps installed. Note: Yes the ACV can be removed and reinstalled from the top side without removing the PS Pump pully. It does help to removed the Air Filter housing and loosen the return line support and move the return line out of the way to improve access. I removed the Pressure line from the bottom of the PS Pump and this made it a snap to remove the ACV as you can work from the front of the pump area. Good Luck, Bryan

example of listing as follows: http://cgi.ebay.com/ebaymotors/ws/eBayISAP...item=2457797957

I also have a 91 LS400. I recently replaced the front brakes on my car. The only problem I had was reinstalling the anti-vibration spring clips on the back of the pads. What a pain in the ---! I don't know if the dealer has a tool for this but if you try to hold this assy together and install it, it will literally drive you to drink! Good Luck

:D Thanks Guy's You know I kind of feel stupid for not checking that option first. Thanks again for the advice, Bryan

Does anyone out there know where I can get a new or rebuilt Power Steering pump for a LS400? Mine has a leak and is causing problems with my Alternator. Thanks Bryan

Hello Gentalmen, I've got a 91 LS400 and I'm experiencing the same problems with the LCD display blacking out. I've noticed several listings on Ebay for replacement LCD panels to be soldered into your existing unit. Has anyone seen or have access to where these guy's may be buying these panels. The repair itself is simple if you can just get your hands on the parts! Thanks Bryan