How to remove the spark plug and cleaning proceedure

REMOVAL PROCEDURE

1. Remove the ignition control modules.
2. Clean the spark plug recess area with low pressure air.

CAUTION: Wear safety glasses when using compressed air, as flying dirt particles may cause eye injury.

NOTE: Clean the spark plug recess area before removing the spark plug. Failure to do so could result in engine damage because of dirt or foreign material entering the cylinder head, or by the contamination of the cylinder head threads. The contaminated threads may prevent the proper seating of the new plug. Use a thread chaser to clean the threads of any contamination.

1. Remove the spark plugs from the cylinder heads.

NOTE: Allow the engine to cool before removing the spark plugs. Attempting to remove the spark plugs from a hot engine may cause the plug threads to seize, causing damage to cylinder head threads.

1. Inspect the spark plugs. Refer to Spark Plug Inspection.

INSTALLATION PROCEDURE

1. Measure the spark plug gap on the spark plugs to be installed. Compare the measurement to the gap specifications.

NOTE:

• Use only the spark plugs specified for use in the vehicle. Do not install spark plugs that are either hotter or colder than those specified for the vehicle. Installing spark plugs of another type can severely damage the engine.
• Check the gap of all new and reconditioned spark plugs before installation. The pre-set gaps may have changed during handling. Use a round feeler gage to ensure an accurate check. Installing the spark plugs with the wrong gap can cause poor engine performance and may even damage the engine.

1. Install the spark plugs to the cylinder heads.

NOTE:

• Be sure that the spark plug threads smoothly into the cylinder head and the spark plug is fully seated. Use a thread chaser, if necessary, to clean threads in the cylinder head. Cross-threading or failing to fully seat the spark plug can cause overheating of the plug, exhaust blow-by, or thread damage.
• Refer to Component Fastener Tightening Notice in Service Precautions.

Tighten the spark plugs to 20 N.m (15 lb ft) .

1. Install the ignition control modules.

Either your cams are out of time of you have a wrong wire on he wrong plug; could be more issues..

Most chainsaws have a self contained recoil that will come off as one piece, with no reaction as it is removed. Very old saws may not have this type system (50 or 60 year old saws) and should be disassembled with caution.

Check spark plugs/clean as necessary/ If continues to back fire suspect timing has altered during a recent maintainance proceedure?

Hi, the 2004 Toyota Matrix requires Iridium spark plugs, which retails for about $12 at the dealership, and it should not need to be changed until 120,000 miles.
To change the spark plug, remove the black cove off the top and they will be right there. You will probably need atleast an 8" extender to get to them becasue they don't have Spark Plug wires atleast on the 2zz-ge aka XRS Motor I do Not Know aboout The 1zz-fe AKA Matrix, XR, AWD

Replace spark plugs every 60000 km (37500 miles). See picture below:

Ther is no coil "PACK" on your engine. Each plug has its own coil. Each one is held in place by a single 8mm head bolt that screws into the intake plenum. To change them you simply disconnect the electrical connector, remove the bolt and pull the coil and spark plug boot up out of the spark plug tube. (Reverse proceedure to install.)

There are no "special" tools required. Here is how you would do it:

NOTE: This engine is equipped with an aluminum cylinder head. Allow the engine to cool before removing spark plugs. Removing the spark plugs from an engine at operating temperature may damage the spark plug threads in the cylinder head. Also be sure to clean any dirt or debris from around spark plug holes prior to removing spark plugs.

I also recommend putting a small amount of anti-seize compound on the threads of the spark plugs when installing. Be careful not to under or over-tighten because cylinder head damage could result. If you have access to a torque wrench, the specification is 11 foot pounds.

1. Disconnect the ignition coil electrical connectors.
2. Carefully release the number 1 spark plug wire from the clip on the number 2-3 ignition coil.
3. Remove the 2 bolts from each ignition coil.
4. Remove the number 1 spark plug wire and the number 1-4 ignition coil from the spark plugs.
5. Remove the number 2-3 ignition coil and the number 3 spark plug wire from the spark plugs.
6. Remove the spark plugs from the cylinder head.
7. Reverse proceedure to install.

You need to remove the decorative cover that tells you your motor size then you can access the coils and plugs. Pinch the tab on the coil connector then pull the head off. Each spark plug has one of these, you have to remove them to get at the plugs. Remove the coil retainer screw and pull the coil out of the cylinder head, then use a long extension and plug socket to take the old plugs out, gap the new plugs and reverse the proceedure to install. I hope this helps you out. If you need illustrations. I could e-mail them to you.

you will need the tool made for pulling the boots off but then all you need is a 3/8 rachet ,about a foot long extension, a universal , then probably 13/16 spark plug socket <could be peanut plug depending on the manifaturer of the plugs> I recomend using bosch or ngk plugs. intake removeal is not needed ....will clear all plugs with intake on but may need to unplug a couple injectors for clearance but don't forget to plug them back in