steve2006

Lexus did have a roof rack for the LS but I would think they are now no longer available, never used mine and sold it to an owner in Sweden.

Looks like the coupling but they are solid rubber so you need to find where all that contamination is coming from that has coated the underside of the car. Part number for the front coupling is 37511-50010 priced at $388.81!!!

Check the "Gauge" fuse, number 7,10 Amp, interior fuse panel.

420,000 miles,that's some going :)

Backlight fix below. BackLight audio stereo ls400 - UCF20 - dry resistors-3.pdf

Hello and welcome to the LOC. The fuel pump is accessed by removing the rear seat base and upright section ( see link below) and then removing the plate/seal on the exposed gas tank.(Shown as the silver disc in the center of the last tutorial picture) Remove the pump disconnecting the feed pipe and electrical connection. Take obvious precautions like disconnecting the battery before starting work and ensure you take care of the fire risks present once the tank is opened. http://www.lexls.com/tutorials/body/rearseat.html Curious to know how your mechanic tapped the fuel pump hidden behind the rear seat? Did the shop not check the fuel pressure when the car was in?

First thing to check is the coolant level, even slightly under the max level can cause heater problems. Also check the operation of the heater flow control valve located on the engine firewall, it is mounted almost centrally at the top and should have a black plastic cover on it.

If you can solder and have around $5.00 for the parts the dash lighting problem is a fairly easy fix. 2 capacitors for the lighting and 1 for the fuel gauge.

Sorry guys still having a few translation problems :)

IIRC you need to remove the brake circuit connection and a banjo joint, undo the mounting bracket and unclip the wiring connector. Once you have replaced it bleed the unit.

I'm breaking a 1997 LS400 and the servos are probably the same, I would be quite happy to remove it for you and post it over for the cost of the postage only if that would help.

Find a breaker,remove the connector and then splice it onto your loom (solder and heatsrink)

I had exactly the same problem on mine and followed the same proceedure regarding bleeding the brakes,trac and ABS units. I managed to get an accumulator out of a breaker fitted it and all has been well for over 3 years.

Yes the heater control valve is operated by a servo motor via the cable, there are several servos operating air flow and direction also. It will be a case of getting under the dash and trying to locate the cable from the valve and where it attaches to but this will probably be well buried.

This fault is normally due to the Accumulator having lost pressure due to worn internal seals,the pump attempts to correct this but then gives a code 19 when it has exceeded its normal duty cycle. You can get the units rebuilt here in the UK but unsure about the USA.

As DCfish says check and part change the ATF and then check the shift solenoids. With it being a 1994 model it is also easy to check any stored transmission fault codes with a piece of wire in the diagnostics port which may give more clues as to the problem. I guess you are also aware of the trunk hinge wiring issue that can cause some strange behaviours. If after all this the transmission is shot it may be more cost effective to find a known good replacement from a breaker, 1990-1994 models are all the same.

IIRC the same type of alternator is used throughout all the production years so find a used LS400 one shouldn't be a problem and there should be no need to look at other models. Main thing with a used one is making sure it's a good one. When you say your "alternator is going out" what exactly do you mean? Charge light on,noisy bearings,soaked in PS fluid?

I have broken a few LS400s and have sold these off them,IIRC there is little if any difference between the 1990-1994 and the 1994 on models. At the price for the later ones on ebay even if it needs a little modification to fit it may be worth the cost.

Is the servicing up to date? A clogged air filter along with old oil will increase emmisions.

You should be able to get a reasonable copy of a 1991 LS400 on CD ROM from ebay or Amazon for a few $$$. Or join the Toyota TIS website,subscribe for 2 days for $15.00 and then down load everything you need including the workshop manuals.

Either weld it or sell it :)

Steve, the DHP (Dynamic Handling Pack) was an option in the U.K. and nowhere else. Heated seats were standard in the U.K. but optional on the LS400 in the U.S. in all model years. Ar sorry I didn't know that, just (wrongly) assumed it was a world wide option, maybe I should start exporting the DHP package over as a retrofit. Strangely enough my JDM B spec import has leather but no seat heaters at all and my other CF package has rear seat heaters but none in the front.

Hello and welcome to the LOC. Sorry to hear and see the results of your garage fire I hope the insurance takes care of everything. It looks like you have the DHP model going by the wood steering wheel so you should have the stiffer sports suspension and 17" wheels. Heated front seats should be standard fitment, the buttons are normally above the front ash tray. Looks like you've got the servicing sorted especially the timing belt.

In that case you may have a problem with the shift shock system, basically Aisin transmissions have this system to reduce the jerk when going into drive by 1st taking the transmission into 2nd before 1st. It could be sticking solenoids but if this is the only problem and given the cost of repairs I would live with it on a 23 year old car. As I asked before is your warm idle speed correct at 650RPM? if this is high this will cause a jerk.

I managed to blow mine also working on the PS pump recently and yes it was just the 120A fuse in the engine compartment fuse box. The fuse is not just a straight plug out and in type it is also bolted in which require the removal of the fuse box section it is located in and then uncliping the covers on either side to get access to the bolts. Main thing is to remember to disconnect the battery this time!