How to change spark plugs in2000 Lexus LS - Lexus Cars & Trucks

SOURCE: New spark plugs in a 2003 Lexus

Yes, it is very hard to change the plugs. Your lexus also likely has coils on top of the plugs, which you especially don't want to break. I would recommend taking the car into a dealer for the repair.

SOURCE: how do i change my spark plugs on my lexus ls400

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.

SOURCE: how to change spark plug on lexuse gs300 2003

Hi, You need a new Spark Plugs Spark Plug Wrench Socket wrench Extension (At least 2-3 inch) size 10 socket size 12 socket...
First thing you need to do is find out where the spark plug cover is. Once you figure that out there will probably be size 10 or/and 12 bolts honding it down. Take that off and there you will see sensors connecting to each other and holding the spark plug in the cylinders. Unplug all the sensors and pull out the circular plugs holding the spark plugs down. THey might be a little tight and hard to get out so you're going to need to give it a good tug. Once you pull them out MAKE SURE YOU DONT DROP ANYTHING INTO THE CYLINDERS. You can look down into them and see the spark plugs. Get your spark plug wrench, extension, and socket wrench and stick them down in and push so that the spark plug wrench grabs them. Just simply unscrew the plugs, pull them all out, and then put the next ones in, and tighten them down. Just connect all the sensors, and put the cover back on and you're done. Pretty simple.
Take care

SOURCE: my lexus ls 400 will run for 30 minutes then stall and it will take at least 30 minutes for it to start

check engine temperature could be overheating or you have faulty throttle control motor.could have faulty mass air flow sensor.have vechicle code scan before buying new parts.

Marvin

• 85242 Answers
• Posted on Oct 29, 2012

SOURCE: how do i change the plugs and wires

The spark plugs are located in well in the valve cover, remove them one at a time with a deep 5/8 good quality spark plug socket 3/8" drive on a 12 inch extension and a like sized ratchet. Remove the spark plug boot from the plug with a twisting motion side to side with the spark plug out remove the spark plug wire for that cylinder from the distributor cap and match it by length to the new wire in the spark plug wire set, make sure you get the closest one in length to the original wire, this is important. In stall the spark plug back into the valve cover well and attach the long plug boot to it in a twisting motion, use a little silicone grease on the inside of the boot to ease installation, it is supplied with the wire kit. Repeat this for each cylinder and match the individual wire lengths as you go as close as possible to the original wires. PLEASE NOTE: IF YOU FIND OIL ON THE PLUGS OR WIRE BOOTS THE VALVE COVER GASKET IS LEAKING INTO THE SPARK PLUG WELLS AND MUST BE REPLACED.