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They are located in the top of the engine block and can be accessed through the very top of the engine.
On top of the engine you will see four rubber things with wires leading off to the driver's side. These are the plug wires that connect the spark plugs to the distributor.
To get to the spark plugs you have to pull the plug wires out. Do this one at a time and be careful not to destroy the wireset by jerking them out. Grab one of the rubber pieces and pull up; applying pressure as you wiggle it. You may have to apply quite a bit of pressure but if you continue to move it back and forth it should let go of the plug.
Once you have taken a wire off, you can use a flashlight to see the plugs down the holes in the top of the engine. To remove the plugs you will need a "plug puller" which is a deep socket wrench with a material in the top of it that the top of the plug will stick into. This allows you to unscrew the plugs and then pull them out of the engine block. It also allows you to lower your new plugs into the engine. One can be purchased at any decent auto parts store. **Be careful when removing and replacing the plugs - if too much pressure is applied the glass parts of the plug can break and possibly drop debris into the cylinders.
**If you are inexperienced, label the plug wires to the cylinders (1234 left to right). This will ensure that you don't somehow place a wire on the wrong cylinder though the lengths are staggered so it shouldn't be a problem.
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∙ 15y ago
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How do you change the spark plugs on a 1999 Altima?
How do you change the spark plugs in a 1999 Nissan Altima. Can not get socket on the plug.
How do you replace the spark plugs on a 1994 Nissan Altima?
unscrew them
What kind of spark plugs does a Nissan altima use?
i would recommend ngk iridium plugs
What is the location of the spark plugs on 2003 Nissan Altima?
All 4 are on the motor.
How long to change spark plugs 2003 Nissan altima 3.5SE?
About 105,000 miles.
How often do you change spark plugs in 2005 Nissan altima?
usually every 100000
Where are spark plugs in 2000 altima located?
Under the valve cover
What size socket is need it to remove spark plugs og a 07 Nissan altima?
16mm
What is the spark plug gap for a Nissan Altima 2001 engine2.4?
Most all auto spark plugs that are sold today are already properly gapped for the auto they are going into. If you visit your local auto parts store, they can look up the plugs for your Nissan Altima and you won't have to gap the plugs yourself.
How often do you need to change the spark plugs in a 2002 Nissan Altima and where are they located?
Unless it is running rough or missing, change them at 90,000 miles. They are screwed into the heads.
Is there oil inside where you plug the spark plugs into in my Nissan Altima?
No there should not be any oil where you plug your spark plugs into
Why is your 1994 Nissan Altima sputtering at an idle?
One reason why your 1994 Nissan Altima could be sputtering at an idle is because of your spark plugs. It could also be caused by the idle sensor.
