i have a shifting problem...

Munnugles

Member
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2008 Mazdaspeed 3
ok so this has been going on for a bit... and now im getting sick of it but i cant figure out why it happens...

basically everytime i shift from 1st to 2nd and sometimes 3rd i get a slight jerk while letting the clutch go... this happens through the whole rpm range from 1st to 2nd and usually under 3000 goin to 3rd... it happens only when daily driving, no racing/flooring, just basically stop and go type of deal... when i do floor it i get a very slight jerk but im guessing thats cuz of popping the clutch out too quick...

when i installed my turboxs 50/50 bov it this problem went away for a bit and then came back...

my thought is that i may have a leak from my recirc tube wen the bov vents back to the intake cuz the tube is a little short and not fully on all the way, cuz i cut it for when i had my hks...

i have been trying different amounts of washers but it all feels the same to me.

besides the 50/50 i have a tmic and mscai... anyone have any thoughts on what this can be... i have a friend that says its the throttle plate but idk... i also do not have the latest reflash for the car for the fuel pump thing... (may possibly help)..

thanks in advance to anyone that helps, its getting annoying...
 
throw the stock bpv on and see if it stops. if not then you know it has nothing to do with the bpv. do not switch it over to vta either. our cars are not designed to run it.
 
It might be timing from when you let the clutch go to hitting the accelerator. Try pushing the gas slightly before you let the clutch out all the way. I had the same problem and this makes things smoother.
 
Dude i think your in the Speed 6 club.... There are a million different variations to this type of problem. If you search all over this site there are a lot of post about "stuttering" and "sputtering" and lots of other descriptions. Mine does it from 1st to 2nd every so often. But from 2nd to 3rd its HORRIBLE EVERYTIME! I have tried everything and looked everywhere. There is one fix that has to do with stretching springs, forgot what there called. I tried and it didnt help. The only thing that works for me is something i was told about a couple days ago and thats to keep my foot to the floor and not let up while im going to 3rd. Wouldnt recommend it... Good luck man!
 
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