20 Most Recent 1990 Lexus LS 400 - Page 5 Questions & Answers

The dash fuse block is located behind the kick panel to the left of where your feet would be on the drivers side of the car. There is also a block in the engine compartment.. Look on the cover and you will see trunk! Give good thumbs up if this helped!

It does sound like the sensor is either dirty inside the tank or bad. You will have to remove the overflow tank and the sensor is torward the bottom of the tank and easily replaced.

air needs to be bled out of system or check wear on brakes, might not be adjusted right also .

The first thing to have checked is the fuel pressure, low pressure kills the power.

The starter is located at the bottom rear of the engine at the engine to transmission bolt up. You must raise the car up and get under unit to see the starter.

Oil change won't hurt...watch out going over your scheduled oil changes. It's a 90 LS 400, It's been around.

Read the last post:http://us.lexusownersclub.com/forums/index.php?showtopic=66180

I believe what this symbol is the radiator. It comes on when the coolant level is low. Take a look at your radiator coolant level and if low add some to the full mark. Do this when the engine is cold to avoid getting burned from hot water and steam.

I had that problem on my car . it`s was my right side coil pack wire.

it will have a dead miss or will not run

Hi. Not exactly sure what your looking for ..... The fuel is delivered to the engine via a fuel rail and each cylinder has a injector to deliver fuel to that cylinder.

Fuel is pumped into the fuel rail at 35 psi from a pump in the fuel tank.....don't worry, never heard of one causing a fire. There's not enough air in the gas tank to support a flame.

There is also a 'throttle body' to allow air to enter the engine but iit is not like an old carburettor also delivered fuel.

If you look in the engine bay you will see the cables that operate the throttle body. there will be two cables, one for the throttle controlled by the drivers pedal and one cable operated by the cruise control.

Hope this is some help.

go to the auto parts store they can most likely tell you what it is and maybe change it for you tip them well

Find a better mechanic. How can a battery POSSIBLY overcharge with the alternator disconnected? plus you NEVER should disconnect battery or alternator while engine is running. A voltage surge could wipe out the ecm.