LandShark Posted March 17, 2005 Share Posted March 17, 2005 Curious if anyone else has noticed this subtle issue - I wouldn't call it a problem. Almost everyday during normal driving conditions, I notice that my LGT 5MT will experience a "shudder" during mild acceleration begun while the engine is in the 3,000 to 3,500 RPM range. It happens in both 4th & 5th gear. This shudder is not the low speed, low RPM "stutter" that was all the talk during the early days of the Legacy. This shudder feels like a momentary unsettling of the drivetrain. Akin to a harmonic vibration. It only lasts a mere moment. It feels similar to a "slip" or looseness in the drivetrain. It's the only time that my Legacy doesn't seem absolutely tight in the response between gas pedal push and car response. Again, I'm talking about a very subtle shimmy that a passenger or unfamiliar driver would probably never notice. This does not happen under harder acceleration. It only happens when cruising a typical highway speeds (70-80 mph) that puts the RPM range around 3,500. Then when a slight amount of throttle is given for a leisure pass or something, I will feel this mild shudder. Anybody else?? Link to comment Share on other sites More sharing options...
Deer Killer Posted March 18, 2005 Share Posted March 18, 2005 Yes.. I believe it is still related to the "stutter".. for more curiousness try cruising along with the engine in the 1-2k range, give it about 5% throttle, and let off completely.. *whoa* It's wierd.. It's all software problems....and please no one say the "engine doesn't like that" or something of that nature.. this car has like twice the torque my old car did in that range, it should work just fine. http://www.legacygt.com/forums/showpost.php?p=91769&postcount=41 Link to comment Share on other sites More sharing options...
emlevins Posted March 18, 2005 Share Posted March 18, 2005 I agree with Deer Killer. I have experienced what you are describing but I believe it is all part of the stutter...which I have maintained is NOT confined to low speed or low RPM. 05 SWP Legacy GT Limited (aka "Pearl")- 5MT AP - Stage 2 Protuned (238/284) - wife driven 07 BMW 335xi Link to comment Share on other sites More sharing options...
LandShark Posted March 18, 2005 Author Share Posted March 18, 2005 I understand what your saying is to blame the engine mgmt. I hope that's true because then it's not a mechanical (wear) problem that will get worse over time. Seems that something in the "logic path" for engine mgmt just doesn't respond well to gentle acceleration. I guess I'll just have to punch it everytime! Link to comment Share on other sites More sharing options...
Deer Killer Posted March 18, 2005 Share Posted March 18, 2005 Seems that something in the "logic path" for engine mgmt just doesn't respond well to gentle acceleration. I guess I'll just have to punch it everytime! Yup.. I dropped my mpg by about 4, and I hardly ever stutter now. Watch subaru complain about abuse.. no, you _have_ to drive it this way.. Link to comment Share on other sites More sharing options...
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