Reuben Posted April 26, 2007 Share Posted April 26, 2007 Hey all, i have an issue with my 94 legacy (Liberty) LX, and it's EJ22E When in traffic, and cruising along and very slow speed.. maybe 10-20 Kph, the engine starts to jerk about. it will only do this when I'm not accelerating, or accelerating very slowly. An example would be me in 2nd gear at about 15 mph, slowing down at a slow rate. Foot off the clutch, foot very lightly on the gas, and all of a sudden it.. well, it's hard to explain, it's like the engine stops for a moment, then goes again. The speeds it happens at are far too fast for the car to be stall ing, that's not what it is. It happens anywhere around 2000 or 3000 rpm, and only when im in gear, put the clutch in and the engine spools down without a hitch. Apparently there were two possible reasons for this, and the mechanic fixed one, i can't remember what it was, and the other was a bad o2 sensor, which he didn't replace. It's still doing it, and he said the o2 sensor would hardly be noticeable, but i can assure the problem is. does anyone have any idea what could be doing this? I'm sure i'm eating through my clutch in rushour to dampen the effect of it! I'm sorry i don't know a heck of allot about engines, im learning though. And no the problem is not me, my dad (former owner) and mechanic both got the problem. Link to comment Share on other sites More sharing options...
SLegacy99 Posted April 26, 2007 Share Posted April 26, 2007 Sounds transmission related to me. My bro's Impreza used to jerk because some of the gears were missing a few teeth. Could also be fly wheel related. Link to comment Share on other sites More sharing options...
mmmkyle Posted May 4, 2007 Share Posted May 4, 2007 Sounds transmission related to me. My bro's Impreza used to jerk because some of the gears were missing a few teeth. Could also be fly wheel related. yea.. i was thinking flywheel too.. do any of your gears pop out? Link to comment Share on other sites More sharing options...
SLegacy99 Posted May 4, 2007 Share Posted May 4, 2007 yea.. i was thinking flywheel too.. do any of your gears pop out? No, but there were a few times where I couldn't get it into 2nd and had to skip it. Link to comment Share on other sites More sharing options...
Suby101 Posted May 4, 2007 Share Posted May 4, 2007 burnt clutch maybe? Link to comment Share on other sites More sharing options...
Reuben Posted May 5, 2007 Author Share Posted May 5, 2007 Clutch is fairly new, the gears are all fine. I am fairly sure that is not transmission related myself. How can i find out what the ECU is trying to tell me? (and no, the check engine light isn't on) Does it really sound transmision related? wouldn't it be lurching about at a constant rate, and not randomly? Link to comment Share on other sites More sharing options...
speeding_gaijin Posted May 7, 2007 Share Posted May 7, 2007 How does it idle? if it idles crappy, I would look into replacing MAF sensor. Link to comment Share on other sites More sharing options...
Reuben Posted May 7, 2007 Author Share Posted May 7, 2007 It idles ok i guess. it doesn't sit at a constant RPM though Link to comment Share on other sites More sharing options...
mmmkyle Posted May 10, 2007 Share Posted May 10, 2007 It idles ok i guess. it doesn't sit at a constant RPM though well how much does it bump up and down at idle? Link to comment Share on other sites More sharing options...
Reuben Posted May 10, 2007 Author Share Posted May 10, 2007 I just checked now, and it was fine.. sitting at 1250 rpm. I remember it dropping away from there by as much as 200 or 300 rpm before it catches itself and brings it up to speed again. Link to comment Share on other sites More sharing options...
bblue2 Posted May 11, 2007 Share Posted May 11, 2007 try cleaning the throttle body bore with a throttle plate cleaner, an old tooth brush and a clean shop rag. Link to comment Share on other sites More sharing options...
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