BangEmBoy

Hello everybody, If I am doing this post wrong, I apologise and ask that I be informed of the correct way to introduce myself as a new LS400 member ....... I am also having a problem with one (1) of my LS's, (1992 LS 400), and I have been looking for older post that other member's posted so as not to tie up the forums, but I haven't been able to find any . I know that my problem isn't unique, so would somebody please tell me who the LS guru is, or if he/she is reading this post, please reply asap . Thanks

SkulCracka

you didnt say what the problems is?

BangEmBoy

My problem started out with white smoke coming out of the tail pipes . I chased the problem down to a bad pressure switch on the power steering pump . The vacum lines to the pump was sucking power steering fluid back into the intake manifold . I took one of the vacum lines off, and it stop smoking. I was on my way to work, and it started smoking bad and loosing power . I also noticed a light on the left side of the dash that came on about the same time, it's yellow and looks like a bird cage with a ball on top . The car finally wouldn't go over 20mph, so I pulled over and checked all of my fluids; all where ok . So I called roadside and had the car towed home . I cranked it the next day, and it drove fine for about 50 miles or so, and then started to loose power again . I once again towed it home, and there it has sat . The car does crank and idle fine, but when you give it gas, it dies . I've done a complete tune up (plug's,wire's, cap's and rotor's) . A compression reading shows 200 to 220 on all cylinder's except the second cylinder from the front on the driver's side, and that one only read's 160 . When the car is idling and cuts off after you give it gas, it will not start back unless you take the second or third spark plug out on the driver's side . I found this out after checking the plugs one at a time to see if any were fouling out .

j2b4o

That pic is supposed to be a radiator I think, anyway it stands for the cooling system. If your antifreeze is fine and it hasnt overheated, I would suspect the engine coolant temperature sensor for the ecu. I would make sure the heat gauge is working and the car isnt overheating also.