semsub Posted December 10, 2011 Share Posted December 10, 2011 Hi Everyone) I'm new to Subaru's and just wondering about this issue: When on parking and car is already warm there are some minor shaking sometimes. It feels like it is from under the drivers seat. maybe exhaust, RPM is not moving when shaking. My car is after maintance , no errors, all is ok, all stock right now) Just wondering is it normal issue for 6 year old Legacy GT, or maybe this is cat ,or exhaust issue or something else?? thanks Link to comment Share on other sites More sharing options...
dga Posted December 12, 2011 Share Posted December 12, 2011 Intake O-rings. Many seem to have this problem. Read here: http://legacygt.com/forums/showthread.php/has-05-lgt-rough-idlei-174172.html Link to comment Share on other sites More sharing options...
semsub Posted December 13, 2011 Author Share Posted December 13, 2011 thanks, try this later by the way is there some bad scenario may happen if I dont change o-rings , or change them later? Link to comment Share on other sites More sharing options...
ehsnils Posted December 17, 2011 Share Posted December 17, 2011 In the long run you may strain your cat, but otherwise it's mostly to your mind. Link to comment Share on other sites More sharing options...
Max Capacity Posted December 18, 2011 Share Posted December 18, 2011 thanks, try this later by the way is there some bad scenario may happen if I dont change o-rings , or change them later? I'm thinking you won't make it till later...The car will become to hard to drive. 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
semsub Posted December 19, 2011 Author Share Posted December 19, 2011 I'm thinking you won't make it till later...The car will become to hard to drive. after changing DP to catless and reflash,shaking issues dissapears at all, strange but stock cat was really new Link to comment Share on other sites More sharing options...
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