1992 Lexus Ls 400 - Page 7 - Answered Questions & Fixed issues

I think you should have an accurate mechanical oil pressure test gauge installed in place of the oil sending unit and check to see what the actual oil pressure is. If it's 15 psi or so at an idle and about 35 psi or higher at 2500 rpm then your pressure is good and means you have some sort of issue between the sending unit and gauge. If the pressure is low, say below 10 or 5 psi at an idle with a warm engine and doesn't improve much at higher speeds then you actually do have low oil pressure, most likely due to worn bearings inside the engine. An accurate test gauge should tell the tale and help you figure out what is wrong. Hope this helps out a bit!

its near to left rear radio speaker in trunk

if your car equiped with separate cd changer ,which usually in the trank , then in the head unit push CD button , then you'll be able to control and play CDs.

the ls400 had problems with the mass air flow meters acting up. You will have to have it tested because they are not cheap. U can get a used one for around 100.00. They cause the car to boog down while trying to accelerate. Check the wires going to the mass air flow to make sure they are making good contact. I have seen this cause a problem. The mass air flow is located on the hose that goes to the throttle body. I have a good one for a 94 to bad you do not live in texas. leave comment

It runs off the belt toward toi lower rear section. A very nice place to put it . Engineering sucks sometimes with these guys designing cars

the fuses blot in from the side you have to take the fuse box cover off first then you will see how it works

fuel pump presure needs checked as does the fuel filter. injectors fail commonly and theie easy to test with a scanner just turn them on and off one at a time

Here is a diagram that should help you out.

du maste lexus aterforsaljare ga till delar department. carry din identifiering och bilregistrering serienummer de kommer att ha dig en gjort.

Nomerous causes.
Start with spark plugs.

by the sound of it I think its seen its end of time.

Need to get that checked out immediately. Coolant in your oil will ruin the engine in a hurry.

trunk,under carpet,i believe left side i think.

there located on top of engine under the cover thats says V8 FOUR CAM 32, 4 S.P. on each side,remove both covers and its easy access after that.

sounds to me that there could be an engine temperature switch that is malfunctioning or not working at all. the temperature switch tells the engine that its cold and that the fuel injection system should operate in cold mode. the switch then tells the computer to start the engine in cold mode. if it malfunctions, the engine controlling unit confuses itself and then cuts off. this is an early sign of that unit failing until the car won't start at all. it's just wear and tear and time that does these things. a good mechanic should help you out quick and should be a couple of ours work. good luck

May be an over rich fuel condition.
Repair the cause first
The converter is as good as dead, as a result of the real issues

It is a bad (leaky) electrolytic capacitor in the dash board that cost a few dollars. The dealer wants to install a whole new dashboard assembly for big $$$.

There are several things to check when your car is running hot.
1. Drain, flush and refill the radiator... flush it with alot of water to clean all the build-up out. If the radiator is plugged, it can be "rodded" where they actually open it up and "rotorooter" the tubes inside.
2. Thermostat and housing can be an issue... if it sticks shut, and if the housing is cracked...change it out.
3. Water pump: if the pump is failing, the coolant won't circulate well enough to cool. Tell-tale sign is coolant leaking out of the small drainhole on the housing of the water pump.
4. If the motor is running rough, you may have a blown head gasket allowing the coolant to enter the cylinder. You can check for foamy oil on the oil dipstick too.

So long answer to a short question... the thermostat may solve your issue, but check everything else as well.

Best of success!

what are you asking?If it is a lifter, valve cover will have to be removed to check it.It could be that rockers need adjusting but if lifter is bad you will have to remove the intake manifold and replace lifter.

An oil pan gasket is what you will need to stop this leak for it is leaking around the bolts. This is common to all oil pan bolts when they get old