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Nissan Rogue Spark Plugs Replacement Guide
How to check or change the QR25DE 2.5L I4 engine spark plugs in a 2nd generation 2014 to 2018 Nissan Rogue.

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2016 Rogue Engine Bay
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Plastic Peg & Rubber Grommet
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Pull Out of Grommet

This automotive maintenance tutorial was specifically written to assist owners of the second generation 2014, 2015, 2016 and the revised 2017 or 2018 model year Nissan Rogue SUV in checking or changing the engine spark plugs in the QR25DE 2.5 liter inline four cylinder motor.

Owners of other Nissan or Infiniti vehicles such as the Murano, Altima, Titan, Versa, Sentra, Maxima, Leaf, 370Z, GT-R, Juke, Pathfinder, Armada, Patrol, Skyline, Cube, X-Trail, Xterra, Qashqai, Rogue Sport, NV200, NV400, Teana, Q50, Q70, Q60, QX30, QX50, QX56, QX60, QX70 and QX80 may also find these DIY instructions to be helpful.

The OEM iridium spark plugs are Denso 3490 FXE20HE11C.

Two other compatible replacement spark plugs with their part numbers are as follows: Autolite XP5683 and Bosch (9620) VR8NII35U.

The tools needed to complete the procedure include a pair of pliers, a 9/16" spark plug socket, an extension bar, a 3/8" drive ratchet, a 10mm wrench and a tube of dielectric grease.

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Pull Hose Out of Retainer Clip
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Vacuum Hose & Clamp
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Release Tension - Pliers
To access the ignition coils and the spark plugs, you'll need to partially remove the part of the air intake assembly that covers the top of the engine.

Pull up on the far left side of the black plastic air intake assembly until the peg lifts out of the rubber grommet.

Pull the rubber vacuum hose out of the plastic "C" shaped retainer clip.

Then use a pair of pliers to release the tension on the hose clamp on the back side of the air intake.

Pull the rubber hose off the nipple on the air intake assembly.

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Release Air Intake
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Rotate Air Box Up
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Ignition Coils Exposed
Gently rotate the air intake up and towards the right side of the engine bay.

Once the air intake is out of the way, you'll be able to easily access the four ignition coils.

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Grey Electrical Connector
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Push In Release Tab
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Pull Off Power Plug
Push in the release tab on the grey plastic electrical connector before sliding it straight off the spark plug ignition coil.
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Loosen Counterclockwise
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Remove 10mm Bolt
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Rotate Back & Forth
Loosen the single bolt that holds the ignition coil in place to the engine by turning it counterclockwise with the 10mm socket and a 1/4" drive ratchet.

Rotate the ignition coil housing back and forth a few times to make sure that the rubber dust boot at the bottom is not stuck or "frozen" to the top of the old spark plug.

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Lift Out Ignition Coil
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Spark Plug Well
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9/16" Socket & Extension
Lift the ignition coil straight out of the spark plug well.

Set the ignition coil aside in a safe place.

Attach the 9/16" spark plug socket to the extension bar and a 3/8" drive ratchet.

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Loosen Counterclockwise
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Spin Out Old Spark Plug
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Lift Out Old Spark Plug

Lower the socket down in to the well and attach it to the top of the old spark plug.

Carefully loosen the old spark plug in the counterclockwise direction.

Try to avoid using excessive force to loosen the old spark plug to prevent from cracking the ceramic portion of the plug.

If you have trouble loosening the old spark plug, spray a small amount of penetrating oil such as PB Blaster, Liquid Wrench or Kano Kroil and wait at least 15 to 30 minutes before attempting to loosen it again. If you don't have any penetrating oil, try spraying some WD-40 or warm up the engine for a few minutes to help expand the metal engine block.

Once the old spark plug is loose, detach the ratchet and spin it out the rest of the way by hand.

Lift the old spark plug out of the well and detach it from the socket.



 
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Inspect Old Spark Plug
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Spin In New Spark Plug
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Tighten Clockwise

Inspect both ends of the old spark plug.

If the electrode end of the old spark plug appears to be ashy white, the plugs might have been exposed to high temperatures such as overheating or they might be the incorrect heat range for your driving conditions or environment.

If the electrode tip of the old spark plug is grey or covered in dark black soot, the engine might be burning oil and should be inspected by a professional mechanic.

The OEM spark plugs in this 2016 Nissan Rogue with the QR25DE 2.5L I4 engine are the Denso 3490 FXE20HE11C.

(An optional step is to apply some anti-seize grease to the threads on the spark plug. Most spark plug manufacturers recommend that you should not use anti-seize lubricant grease since it can lead to over tightening. Although some mechanics believe that using anti-seize grease on the new spark plugs will help prevent them from becoming stuck or "frozen" in the cylinder head if they are not removed again for another 100,000 miles.)

If you have a spark plug gap gauge, check that the new spark plugs are gapped to the manufacturer's specification listed on the box.

Push the new spark plug in to the 9/16" socket.

Your spark plug socket should have a magnet or a rubber insert to securely hold the new spark plug in place.

Lower the spark plug down in to the well and spin it in the clockwise direction until it makes contact with the cylinder block.

If you are re-installing the old spark plug, tighten it to just a small fraction of a turn past hand tight.

If you are installing a new spark plug, tighten the spark plug until you feel the new crush washer collapse, which should be about 1/8 to 1/4 of a turn past when it first makes contact with the engine block.

Try to avoid over tightening the spark plugs to prevent from cracking the ceramic part of the plug or stripping the threads.

Double check that the new spark plug is tight before moving on to the next step.

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Apply Dielectric Grease
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Lower In Ignition Coil
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Rotate Back & Forth

Apply a small amount of dielectric grease to the opening at the bottom of the rubber dust boot on the ignition coil housing.

The dielectric grease will keep out any moisture or debris and help ensure a reliable electrical connection.

Push the ignition coil back in to the spark plug well and rotate it back and forth a few times to help spread the dielectric grease.

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Spin In 10mm Bolt
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Tighten Clockwise
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Push On Power Plug
Re-insert the 10mm bolt and spin it in by hand in the clockwise direction.

Tighten the 10mm bolt with the socket and 1/4" drive ratchet until it is snug.

Try to avoid over tightening the bolt to prevent from cracking the plastic ignition coil housing.

Push the electrical connector on to the ignition coil until it clicks securely in to place.

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Spark Plugs Replaced
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Lower Air Intake
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Push Peg In To Grommet
Once you have checked or replaced all of the spark plugs, you can push the air intake assembly back down on to the top of the engine.

Push the plastic peg or "spike" in to the rubber grommet on the left side of the engine.

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Secure Vacuum Hose
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Air Intake Secured
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QR25DE 2.5L I4 Engine
Re-attach the rubber hose in to the "C" shaped plastic retaining clip.

Re-attach the rubber hose on the back side of the air intake to the plastic tube.

Start the engine and listen for any strange sounds that might indicate a problem such as a loose spark plug or a disconnected electrical connector.

Be sure to record the spark plug change in your SUV's service records.

For more, check out all of my 2014-2018 Nissan Rogue DIY Repair & Maintenance Guides.
 

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