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04 x
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Discussion Starter · #1 ·
I love my Subaru to death and recently the Subie's been acting up. After some hard acceleration my car started to shudder and stutter. The check engine light came on during this. I read the codes which were p303 and p303pd. The car runs fine when I drive like a grandma but any hard acceleration the car just dies. I also noticed the car has a hard time getting into gear when I accelerate now and then. I believe its a cracked spark plug but I'm not quite sure.


PLEASE HELP!!!
 

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04 x
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78 Posts
Discussion Starter · #4 ·
I have 140,000 and I've been pretty good about the maintenance schedule. I also forgot to add my fuel economy has dropped significantly. Each tank will only last me up to 200 miles.


And to answer subie roo's question the trans issue has started ever since the stuttering started.
 

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Discussion Starter · #15 ·
Thanks for the reply's guys! To be honest, I don't think the spark plugs have been changed on this car once which is pretty bad I know. Is there anything tips you guys have on replacing spark plugs?
 
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