Japmodelkits.co.uk Posted July 21, 2011 Report Share Posted July 21, 2011 (edited) Last week I notched a slight jolt when lifting off in 2nd Put a HKS silent power exhaust on at the weekend and all this week it seems much worse Mainly notice it up to 3rd gear, when letting the accelerator up there is about a second delay then it jolts....it might be that the exhaust has put a slight delay to the revs slowing the car down Any one else get the jolting, is it normal I always use the gears to slow down so I am sure I would have noticed before Timing belt Is very noisy latley and squeaking so could it be that too as I read that can cause a jolt. Thanks for any help Edited July 21, 2011 by Japmodelkits.co.uk Link to comment Share on other sites More sharing options...
arizona Posted July 21, 2011 Report Share Posted July 21, 2011 Are you driving it about with a noisy squeaky timing belt????? Link to comment Share on other sites More sharing options...
Japmodelkits.co.uk Posted July 21, 2011 Author Report Share Posted July 21, 2011 Yes Its noisy and squeaky all the time? Link to comment Share on other sites More sharing options...
paulgtt Posted July 21, 2011 Report Share Posted July 21, 2011 sure its not a drive belt squeeking? thought gen 7's use a timing chain so wouldn't think a chain would squeek Link to comment Share on other sites More sharing options...
Sherv Posted July 21, 2011 Report Share Posted July 21, 2011 most likely an aux belt or a pulley of some sort,not sure on the jolt,if the timing was out it would probably be running with other symptoms? Link to comment Share on other sites More sharing options...
arizona Posted July 21, 2011 Report Share Posted July 21, 2011 (edited) Hope its an easy fix, the guys will be able to help you out with some tips Edited July 21, 2011 by arizona Link to comment Share on other sites More sharing options...
gen7nnb Posted July 21, 2011 Report Share Posted July 21, 2011 Mine has a delay when easing off, you feel it start to slow about half a second after letting off! The squeak is very common, t'is the aux belt, very easy to fix. You should find all you need to know in the gen 7 wiki! Link to comment Share on other sites More sharing options...
Japmodelkits.co.uk Posted July 21, 2011 Author Report Share Posted July 21, 2011 Mine has a delay when easing off, you feel it start to slow about half a second after letting off! The squeak is very common, t'is the aux belt, very easy to fix. You should find all you need to know in the gen 7 wiki! Yes that's it about half to one second delay but myne has got worse since putting the HKS on, is yours just up to 3rd gear then not so bad. Do you think upgrading the panel filter will make this better or worse? Link to comment Share on other sites More sharing options...
juicygoolies Posted July 21, 2011 Report Share Posted July 21, 2011 I get that jolt thing but only when the car is cold. Only in 2nd gear as well. It's quite annoying when you lift off and the car almost smashes your face into the windscreen. Link to comment Share on other sites More sharing options...
Monkey_matt Posted July 21, 2011 Report Share Posted July 21, 2011 just an idea, do you have electronic throttle control? could it be that the mods are affecting the way it works and so is inducing a delay from when you want the throttle to close to when it actually does? No idea if this could be whats wrong, but its an idea......... Link to comment Share on other sites More sharing options...
sh3p Posted July 22, 2011 Report Share Posted July 22, 2011 just an idea, do you have electronic throttle control? could it be that the mods are affecting the way it works and so is inducing a delay from when you want the throttle to close to when it actually does? No idea if this could be whats wrong, but its an idea......... gen 7's throttle is a cable at least i'm pretty sure thats what i lubed the other day oooh err missus.... Link to comment Share on other sites More sharing options...
dr3bin Posted July 22, 2011 Report Share Posted July 22, 2011 (edited) Yeah it's a cable driven throttle. I get the jolt occasionally in 2nd, too - although not quite as apparent as you guys are describing it as! :/ I've found that if you ease off the accelerator a little before lifting your foot off completely it helps (for me at least - worth a try?) Edited July 22, 2011 by dr3bin Link to comment Share on other sites More sharing options...
Chris CW Posted July 22, 2011 Report Share Posted July 22, 2011 (edited) I get this jolting, and when in traffic (as I am an hour a day) it can be pretty irritating! I assumed it was play in the engine mounts, never got worse so I guessed it was nothing to worry about. As above I just ease of the gas alittle more gently to make it less severe Edited July 22, 2011 by Chris CW Link to comment Share on other sites More sharing options...
juicygoolies Posted July 22, 2011 Report Share Posted July 22, 2011 Yeah it's a cable driven throttle. I get the jolt occasionally in 2nd, too - although not quite as apparent as you guys are describing it as! :/ I've found that if you ease off the accelerator a little before lifting your foot off completely it helps (for me at least - worth a try?) Yeah just be smooth with the throttle. I still forget though But like I said it only happens to me when the car is cold so there's my excuse for forgetting Link to comment Share on other sites More sharing options...
Japmodelkits.co.uk Posted July 22, 2011 Author Report Share Posted July 22, 2011 Do you guys have aftermarket exhausts, maybe this is the cause as myne was fine last week, I'm getting lots of jolting when moving slowly in tragic in 1st and 2nd too Link to comment Share on other sites More sharing options...
dr3bin Posted July 22, 2011 Report Share Posted July 22, 2011 Nah I noticed it before I had my custom exhaust built and installed. My car only jolts in 2nd or 1st if I take my foot completely off the accelerator too fast. If you move it off a bit (so the car starts slowing down due to the closing throttle) before you take it right off it'll help (this is what I do). Link to comment Share on other sites More sharing options...
juicygoolies Posted July 22, 2011 Report Share Posted July 22, 2011 Do you guys have aftermarket exhausts, maybe this is the cause as myne was fine last week, I'm getting lots of jolting when moving slowly in tragic in 1st and 2nd too Lots of jolting? So are you kangarooing down the road or is it definitely only when you lift off? Link to comment Share on other sites More sharing options...
Japmodelkits.co.uk Posted July 22, 2011 Author Report Share Posted July 22, 2011 (edited) Mainly when lifting off but in 1st and 2nd I have slight jolting/kargarooing during traffic situations yes Should i be worried Edited July 22, 2011 by Japmodelkits.co.uk Link to comment Share on other sites More sharing options...
juicygoolies Posted July 22, 2011 Report Share Posted July 22, 2011 Probably not. In first any car will kangaroo when you're just moving along slowly in traffic especially as the revs drop. If you're kangarooing under acceleration then you might get worried. Like people have said try to ease off the accelerator or even just engage the clutch if you're going slow enough. I always roll in neutral in traffic if the circumstances allow. Link to comment Share on other sites More sharing options...
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