How to Remove and Install your Spark Plugs the easy Way!!!

Have a look on the following link for the socket/wrench/tool you will need:
spark plug socket Google Search


To avoid getting the ignitions leads replaced in the wrong order:
Remove ONE lead from ONE plug at a time.
Use the tool/socket to remove that plug by turning anti-clockwise.

Put the new socket in hand tight - this is to avoid cross-threading the spark plug and damaging its threads/threads in cylinder head.

When the spark plug is hand-tight/finger tight, tighten it with the socket /tool. Just 'gently tighten it up' - do not overtighten.

Replace the ignition lead and then move onto the next plug.


removing spark plug Google Search

Tools Required or used to assist:

-1/4" ratchet
-1/2" ratchet
-Long extension
-Short extension
-3/4" (I believe, the normal sized one, not the huge one) spark plug socket
-Needle Nose pliers
-Flat head screw driver
-Adjustable pliers
-8mm socket
-10mm socket
-12mm socket
-#5 Hex Wrench
-12mm wrench with closed end on one side
-Spark plug gap tool with wire gap checker
-Flashlight
1. Buy replacement spark plugs. I bought Bosch Platinum+2 plugs for about $4/apiece from an online parts store, but from what I've read, the Platinum+4 are much better. They provide much more complete ignition and offer a noticeable improvement in mileage. One anecdote I heard was a friend of a friend who went from 20mpg to 24mpg on his BMW 3-series. The platinum+4 are only $1 more, so the possible performance improvement is well worth it.


2. Get your tools.


3. Remove the engine vanity cover by removing the three bolts near the base (front) of the engine. You'll need a hex wrench to get these out. See the picture below for location. Once the screws are out, rotate the lexus logo 90? and the cover should come off pretty easily.


4. Practice removing one of the easier spark plugs in the front.


5. First, disconnect the electrical connector from the spark plug tube head by pressing the end with your thumb and using a flat-head screwdriver to pry the connector off. Remove the spark plug tube screw using a socket wrench or equivalent. The tube should now slide out. See the picture below for reference. That was practice, now put it back in and replace the screw holding it in place.


6. Clean the area around each spark plug tube using a hand towel, pressurized air canister, or both. This includes the spark plugs behind the intake manifold. This will be tough because you will have to work by hand, but it is important.


7. Start by removing the most difficult spark plugs - in this case, the back ones. It is better to do the easy ones last, in case - for some reason - you give up or can't get the back plugs out. The back plugs are located behind the intake manifold (see picture below). You'll have to get to them through the opening indicated by the '''blue arrow. You can make this more accessible by removing what I think is the cruise control bracket. Loosen the nut indicated by the '''yellow arrow and remove the bolt indicated by the '''red arrow. Warning: these might be very tight.'''''''''


8. Repeat step 5 starting with the rear right spark plug (rear right when facing the front of the car), followed by the rear center, then rear left. When removing the spark plug, be sure not to let any dirt or debris fall into the engine. It could cause sever damage. The best thing to do is to remove the old spark plug, briefly inspect it, and immediately begin installing the new spark plug.

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USE A SPARK PLUG WIRES BOOT PULLER.THE BOOT PULLER CAN GO TIGHT PLACES WHERE YOUR HANDS CANT REACH.ONCE YOU REMOVE SPARK PLUGS WIRES REPLACE THEM.SOME PLUG WIRES WILL BREAK AWAY FROM THE BOOT WHEN REMOVING SPARK PLUGS WIRES.DONT REMOVE OLD PLUG WIRES IF YOU DONT HAVE NEW SET PLUG WIRES ON HAND.BECAUSE YOU WILL DISABLE VECHICLE.IF COUPLE OLD PLUGS WIRES BREAK WHILE REMOVING THEM YOU WILL BE 2 PLUG WIRES SHORT AND YOU CANT DRIVE VECHICLE THAT WHY HAVE NEW SET OF PLUG WIRES ON HAND.

It is very easy, on all new vehicel, you have to know there is a plastic engine cover on the engine, just simply remove all bolts and set the cover free.Follow on the engine head you will see two head, and you will see 3 black objects these are the ignition coil on the spark plug, just undo the screw and remove them, you can never misplace them becaue they are all have unequal length of electical wire.

Use a spark plug deep socket to remove the spark plug and replace with a new one. always follow the OEM booklet of which one you should use. Reinstall all spark plug by first seat them with your hand tight and then turn them tight enough , do not over torque the thread will damage.

Replace all coils on the plug you will hear or feel a click sound, start the engine and see if any funny thing if not then reinstall the cover and you are set to go..

hope this help...