ENVYOSXR Loves boost Donating Members 266 Member For: 15y 11m 2d Gender: Male Location: VIC Posted 10/12/09 10:54 PM Share Posted 10/12/09 10:54 PM Hi guys,I have this wierd shudder/jerking happening when coasting at low speeds. Only noticed it at anything below 60kmh when just rolling, it sometimes starts to jerk like something gets out of rythm. If I push the clutch in and release it, it comes good again. Same deal if I put the foot on the gas it comes good.Some info on the car:- 310rwkw- 6sp Manual (Transmax Z Fluid)- 05 BA MkIIIt used to only do it rarely in third, but now it happens more fequently. I am think diff bushes maybe? Any ideas would be great! Link to comment https://www.fordxr6turbo.com/forum/topic/64271-strange-jerking-while-coasting/ Share on other sites More sharing options...
exarsixturbo Dr. Speed Member 784 Member For: 17y 9m 2d Gender: Male Location: The land of Politicians, Public Servants, Porno & Pyrotechnics Posted 10/12/09 11:10 PM Share Posted 10/12/09 11:10 PM Hmmm.... no one likes jerking while at low speeds or strange jerking while coasting..... you will definitely start to jerk when you get out of rhythm.... and its ok if it happens more frequently in third....I suggest putting some Barry White on the CD player, turning down the interior light a bit, maybe having a bottle of wine, and you will learn to enjoy it once you get in the rhythm! Link to comment https://www.fordxr6turbo.com/forum/topic/64271-strange-jerking-while-coasting/#findComment-962235 Share on other sites More sharing options...
RIXT Member 193 Member For: 16y 3m 8d Gender: Male Location: perth hills Posted 10/12/09 11:16 PM Share Posted 10/12/09 11:16 PM BARRY WHITE Mate sounds bit like your centre diff bush see P@ he will sort you out for super pro gear pretty cheap !Ric. Link to comment https://www.fordxr6turbo.com/forum/topic/64271-strange-jerking-while-coasting/#findComment-962236 Share on other sites More sharing options...
dashturbo Donating Members 280 Member For: 16y 8m 25d Gender: Male Location: Watsonia Posted 10/12/09 11:20 PM Share Posted 10/12/09 11:20 PM but really..is the power fluctuating? or is it when the throttle comes on and off your getting jerking?My FG has always been jerky since I got it. even when the cruise comes on or off on the freeway.and when the engine is cold (open loop) the power feels jerky.. but I can live with both..oh and what do you mean by jerk? a thump through the drivetrain? Link to comment https://www.fordxr6turbo.com/forum/topic/64271-strange-jerking-while-coasting/#findComment-962238 Share on other sites More sharing options...
ENVYOSXR Loves boost Donating Members 266 Member For: 15y 11m 2d Gender: Male Location: VIC Posted 10/12/09 11:21 PM Author Share Posted 10/12/09 11:21 PM (edited) haha how did I know I was going to get a response like that. its hard to explain, basically its sounds like diff clunk one after another but only happens when the car is rolling not under acceleration or brake. if I hit the gas it stops and if I push in the clutch.when I take the foot off the gas and go down a slight incline it will be fine some of the time, but other times it wont.I have a feeling it is the centre diff bush also, if I replace this what else should I be replacing while I am at it in that ares?I am also due for a new clutch could that be part of the problem?Thanks guys Edited 10/12/09 11:31 PM by ENVYOSXR Link to comment https://www.fordxr6turbo.com/forum/topic/64271-strange-jerking-while-coasting/#findComment-962239 Share on other sites More sharing options...
IH8TOADS Silver Donating Members 3,618 Member For: 19y 9m 25d Gender: Male Location: OZ Posted 11/12/09 05:15 AM Share Posted 11/12/09 05:15 AM but really..is the power fluctuating? or is it when the throttle comes on and off your getting jerking?My FG has always been jerky since I got it. even when the cruise comes on or off on the freeway.and when the engine is cold (open loop) the power feels jerky.. but I can live with both..oh and what do you mean by jerk? a thump through the drivetrain?Won't be your clutch.Open loop lasts for a minute or so, so I doubt you will be in open loop by the time you start driving.The 6sp ba is born jerky, even with a fresh diff bush. You can modify the accelerator pump logic and dashpot settings in the tune if it $hit$ you that much. Link to comment https://www.fordxr6turbo.com/forum/topic/64271-strange-jerking-while-coasting/#findComment-962305 Share on other sites More sharing options...
ENVYOSXR Loves boost Donating Members 266 Member For: 15y 11m 2d Gender: Male Location: VIC Posted 15/12/09 04:52 AM Author Share Posted 15/12/09 04:52 AM fair enough, thanks for the advice guys Link to comment https://www.fordxr6turbo.com/forum/topic/64271-strange-jerking-while-coasting/#findComment-963278 Share on other sites More sharing options...
dashturbo Donating Members 280 Member For: 16y 8m 25d Gender: Male Location: Watsonia Posted 15/12/09 05:29 AM Share Posted 15/12/09 05:29 AM I wouldn't be too quick to dismiss the clutch. I haven't seen a falcon one since EA, but all the clutches I've seen have take up springs, that supposedly smooth the application. Basically four normal springs (look like valve springs) between the clutch material and the input shaft...Sometimes, they get damaged, crack, break, fall out. Or in general are too soft and can cause the kinda thing your talking about. It may get better with a new clutch.. Link to comment https://www.fordxr6turbo.com/forum/topic/64271-strange-jerking-while-coasting/#findComment-963290 Share on other sites More sharing options...
XR06T Silver Donating Members 4,146 Member For: 19y 10m 11d Gender: Male Posted 15/12/09 06:32 AM Share Posted 15/12/09 06:32 AM (edited) centre bush just behind the gearbox or the centre diff bush. both are easy to check and you will notice straight away if either are worn.here is a pic of mine after I finally changed it, I had a similar clunking to what you describe: Edited 15/12/09 06:35 AM by XR06T Link to comment https://www.fordxr6turbo.com/forum/topic/64271-strange-jerking-while-coasting/#findComment-963301 Share on other sites More sharing options...
dashturbo Donating Members 280 Member For: 16y 8m 25d Gender: Male Location: Watsonia Posted 15/12/09 06:41 AM Share Posted 15/12/09 06:41 AM that's Mashed!! Link to comment https://www.fordxr6turbo.com/forum/topic/64271-strange-jerking-while-coasting/#findComment-963302 Share on other sites More sharing options...
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