1992 Lexus LS 400

The fuel pump pumps the fuel from the fuel tank under pressure up to the fuel rail and injectors.
The coil packs provide a electrical charge (about 40,000 volts) to the spark plugs. It is this charge that makes the spark plug spark.

Should be in front of driver side rear tire. There may be a splash guard that you need to remove to get at filter. Make sure no pressure on fuel system before you take any lines loose. Some fluid may come out of discounted fuel line, so be prepared. Loosing your gas cap may or may not help? Sometimes I plug the fuel line with something till I go back with new filter, then remove plug. I don't know if safely raising and supporting the vehicle, with tire removed will help? I'd have to look at it. There are safety issues anytime you work under a vehicle, safety is your responsibility.

my be the fuel lines or jets

The fuel pump is inside gas tank behind the back seat unscrew the only top that's there and it is inside the gas tank. You will have to remove your back seat to gain access to fuel pump. Fuel tank is located in trunk. No need to take fuel tank down. Click this link for full details and procedures:--- http://technoanswers.blogspot.com/2011/06/how-to-replace-fuel-pump-on-lexus-ls.html ----------- For fuel filter replacing, click this link:--- http://technoanswers.blogspot.com/2011/06/how-to-replace-fuel-filter-1994-lexus.html ----------- For timing belt and water pump removal and installation, click this link below:-- http://technoanswers.blogspot.com/2011/06/how-to-change-timing-belt-and-water.html ------------ For coolant flushing and filling, click the link below:-- http://technoanswers.blogspot.com/2011/06/how-to-drain-and-fill-coolant-on-lexus.html -------------- This all procedures should help.Thanks.Helpmech.

hello there:
the fuel filter is going to be located under the car along the frame on the driver side you will need to jack the car up and look for a silver in color filter you may need quick disconnect tool to remove the the fuel lines from the filter the filter should have a big hose clamp around it hope this helps you out please leave a review thanks sincerely D.Jones

under the car in front of the rear wheel on driver's side

the compressor has two hses coming out of it and one of the hoses/lines will go towads the radiator to the condeser the other will go towards the firewall,,under windshield ,this is the one with the low side service port it will be the small port on the larger line/hose the other one is a large port on a small liquid line/hose,,,,the small port is the one u will need to hiook up to ,on the large line/hose

Under vehicle, driver side, below seating area, front of rear wheelwell, mounted on chassis in fuel line

The fuel filter is located under the vehicle on the left side before the rear axle.

The fuel pump is not under the back seat.but if you still wanyt t remove it just look beteen the seat and the floor carpet the is a little piece of flat metal sticking out, use a pliers or vise grip to hold it and pull forward while push the seat up at the same time. Mine was a little stiff but it did come out.