Frankinroo Posted December 14, 2014 Share Posted December 14, 2014 Hey guys cans gals my 05 lgt L has 85,000 miles with a 5eat love it to death but it's giving me problems it has a single exit invindn n1 exhaust and mid pipe has stock up and down pipe and a drop in K&N filter any help would be nice 1..It idles fine in park somedays other days it will vibrate you out of the seat? Like the car shakes and fills like a miss fire?  2..under boost to the floor (stock car) will surge and jult and buck?? But it holds boost perfect peak 12.psi to 11.5 3..while slowing down or comeing to a coast the rpm drop to like 200 and bounc back to like 1200rpm as if it was a manul trans but it's not it's a (5eat) any idea on this?? 4..went had my oil changed and they told me I have a leaky oil pan gasket? And my oil cooler O ring was leaking any input on this would be helpful Link to comment Share on other sites More sharing options...
washingtonOBXT Posted January 27, 2015 Share Posted January 27, 2015 i have the same issues, would love to know whats causing all of it? Link to comment Share on other sites More sharing options...
travrach Posted January 27, 2015 Share Posted January 27, 2015 Have you checked for codes? Link to comment Share on other sites More sharing options...
MrTris Posted January 28, 2015 Share Posted January 28, 2015 It's your single exit exhaust. Your car doesn't like it and this is how it's telling you that. Link to comment Share on other sites More sharing options...
AF_3C2 Posted January 28, 2015 Share Posted January 28, 2015 Also sounds like a vacuum/intake leak. Link to comment Share on other sites More sharing options...
Rhitter Posted January 28, 2015 Share Posted January 28, 2015 It's your single exit exhaust. Your car doesn't like it and this is how it's telling you that. You really meant #ynansb right? OP - if you can do some logging (access port or tactrix) and look and see if there are misfires that will give you a good idea what's going on. Surges and bucks and doesn't idle smoothly are all signs to me that it's time for a compression and leakdown test. 1-3 all sort of point to that. for 4. That's easy enough to replace. Search around and you can find a walkthrough on how to do that. It's common for that gasket to leak. My OBXT build Link to comment Share on other sites More sharing options...
Frankinroo Posted January 28, 2015 Author Share Posted January 28, 2015 My intake gaskets were shot and my boost gauge line was cracked   Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
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