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spark plugs

  1. ('09-'13) 2009 - Spark plug blow out... SECOND TIME!

    EJ25 - 2.5L Non-Turbo (1998-2010)
    So I'm starting to wonder if this is a common problem with my make. I have a 2009 Forester and so far I've had two spark plugs blow out. From each head!! The first one was driver's side front, tried the helicoil and failed so ended up replacing the head. And now it has happened again on the...
  2. ('14-'18) 2014 - Best aftermarket stuff for general maintenance?

    Parts & Accessories
    I'm wondering about the best aftermarket maintenance stuff for a 2014 XT: • Best Oil? • Best Spark Plugs? • Cleanable/reusable oil filter, Y or N - Best one? • Cleanable/reusable air filter - best one? Wondering about Marvel's Mystery Oil - either in the gasoline or the crankcase. I've used...
  3. ('98-'00) 1998 - Has anyone installed NGK Ruthenium spark plugs?

    EJ25 - 2.5L Non-Turbo (1998-2010)
    Is there a good writeup with pictures and/or a video about how to do them on a 98? As you may know, the 98 is different from the 99+ since it has the DOHC EJ25D and the spark plugs are in a different location. I know it's difficult, and therefore ruthenium is a must so you'll never have to do...
  4. ('03-'05) 2005 - Laser Iridium,Platinum or Copper plugs?

    Problems, Maintenance, and Warranty
    Hi, I'll be changing the 40,000km old platinum plugs in my 2005 XT and wanting to know if/what the performance changes are (if any) with either copper or laser iridium? Cheers!
  5. ('06-'08) 2007 - Spark plugs stuck - mechanic can't remove?

    Problems, Maintenance, and Warranty
    I recently bought a 2007 Forester with about 150, 000 miles on it. I took it to my mechanic to get a tune up. He can’t remove the spark plugs. He said he can back them out minimally but that is as far as they will go. I’ve taken it back 3 times so he can put some sort of lube on them but they...
  6. ('09-'13) 2012 - Hard Idling Engine Vibration after spark plug change?

    EJ25 - 2.5L Turbocharged (2004-2013)
    Hey guys, I wanted to get you guys opinion, I recently did a spark plug change, I got the NGK off amazon, shipped and sold by amazon. I had trouble torque the last spark plug in, driver side rear. It felt tight but that might have been because of the all the adapter and attachment I used to...
  7. ('03-'05) 2005 - cranks but won't start on cold days >also> high idle when I shift into neutral?

    Problems, Maintenance, and Warranty
    hey guys, so I have a 2005 Forester manual 5speed that wont start in the cold. First a little info on the car, I bought it in the spring of this year in New York and replaced the steering rack a few months later. The car has 150,000 miles on it but has a second engine put in from the previous...