When to change spark plugs on Nissan Altima?
This automotive maintenance tutorial was specifically written to assist owners of the fifth generation (2013, 2014, 2015 and possibly also the refreshed 2016 model year) Nissan Altima sedan in checking or changing the engine spark plugs in the 2.5 liter inline four cylinder QR25DE motor.
What kind of engine does a Nissan Altima have?
Owners of other Nissan vehicles equipped with the QR25DE engine such as the Sentra, Murano, Frontier, Rogue, Bassara, Serena, X-Trail, Presage and Teana may also find these DIY instructions to be helpful.
Can a spark plug be replaced in a valve cover?
The spark plug o ring is sandwiched in the valve cover and cannot be replaced. There are some people that said they can use a hole saw to drill the old one out and then install the new one with silicone sealant.
What’s the best way to loosen a spark 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 15-30 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.
What do I need to replace spark plugs in Nissan Altima?
The tools needed to complete this procedure include a 5mm Allen Key wrench or a 5mm hex head socket, a 10mm socket with a 1/4″ drive ratcheting wrench, a 9/16″ spark plug socket, a 6″ extension bar, a 3/8″ drive ratcheting wrench and a tube of dielectric grease.
Why are the spark plugs on my Altima turning white?
Inspect the old spark plug. If the electrode end of the old spark plug looks ashy white, the plugs may have been exposed to high temperatures such as overheating or they may be the incorrect heat range for your driving conditions or environment.
Owners of other Nissan vehicles equipped with the QR25DE engine such as the Sentra, Murano, Frontier, Rogue, Bassara, Serena, X-Trail, Presage and Teana may also find these DIY instructions to be helpful.
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 15-30 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.
This automotive maintenance tutorial was specifically written to assist owners of the fifth generation (2013, 2014, 2015 and possibly also the refreshed 2016 model year) Nissan Altima sedan in checking or changing the engine spark plugs in the 2.5 liter inline four cylinder QR25DE motor.
How does the ignition coil work on a Nissan Altima?
The Nissan Altima ignition coil bears the crucial operational task of powering the spark plugs in the engine by converting the battery’s current-which is high amp but low voltage-into a high-voltage, low-amp current. Over time, this constant exposure to high-voltage wears down the connections in the coil, necessitating a replacement.