fintious maximus Posted April 20, 2012 Share Posted April 20, 2012 Hi all, my mondeo (petrol) has a vibration/grumbling noise and is worse when turning right - turning left and the noise virtually goes. Motorway driving is noisy too. Was told that drivers side wheel bearing was gone so had that replaced today and still no difference. The garage said it could be DMF. Having done a search on internet it seems that DMF is on diesel engined vehicles - is that the case and does anyone have any ideas what the problem could be if not that? Any help appreciated as it's driving me mad. Quote Link to comment Share on other sites More sharing options...
fintious maximus Posted April 20, 2012 Author Share Posted April 20, 2012 Further searching and petrol engines do have dmf... Is it at fault though? Quote Link to comment Share on other sites More sharing options...
DaveD Posted April 20, 2012 Share Posted April 20, 2012 I hope yours hasnt a DMF. I fail to see just why they are being fitted. Since the beginning of time the faithful cast iron flywheel has served its purpose and now for some reason they are being fitted willy nilly to every model of car you can think of. If it aint broke dont fix it. Quote Link to comment Share on other sites More sharing options...
fintious maximus Posted April 20, 2012 Author Share Posted April 20, 2012 Thanks, but DMF's are for sale for 1.8 and 2.0 petrol Mondeo's so reckon it has one. Having really bad luck with cars recently - my V70 T5 has died and now it's replacement (mondeo) is giving me grief. Reckon I should give it back to the garage I bought t from but they don't seem too interested other than recommending garages to take it to... Quote Link to comment Share on other sites More sharing options...
Pauly Posted April 20, 2012 Share Posted April 20, 2012 cant see a flywheel giving an issue turning right sounds like driveshaft or even a lumpy tyre !!!!!!!!!!!!!!!!!! What speed is it at and is it slightly reduced if you go into neutral ? Paul Quote Link to comment Share on other sites More sharing options...
stef123 Posted April 20, 2012 Share Posted April 20, 2012 as above, im thinking a tyre, shaft, hub or gearbox? dont see why direction should affect the DMF. Quote Link to comment Share on other sites More sharing options...
fintious maximus Posted April 20, 2012 Author Share Posted April 20, 2012 I was thinking the same and thought possibly drive shaft. The noise goes completely when clutch is depressed. Regards speed - in a straight line it's at motorway speeds but going right around a bend can be any speed. It is getting noticeably worse though almost daily and as I've just gone 7 weeks without a car (til I bought the mondo) I really need to get it sorted. Quote Link to comment Share on other sites More sharing options...
btmaldon Posted April 20, 2012 Share Posted April 20, 2012 If the noise goes when the clutch is pressed, it could be the thrust bearing (clutch release bearing). It wouldnt have been linked to turning left or right though. Quote Link to comment Share on other sites More sharing options...
fintious maximus Posted April 20, 2012 Author Share Posted April 20, 2012 Quick update - just taken car out and the noise has got worse and does it almost constantly and not just on a right turn. Popped the bonnet up and revved the engine and it sounds like a plastic case/cover vibrating against something. Doesn't sound at all metallic but I can't pin it down to a place. Tried holding down all plastic bits but made no difference and it sounds much louder from inside the car. Quote Link to comment Share on other sites More sharing options...
fintious maximus Posted April 20, 2012 Author Share Posted April 20, 2012 If the noise goes when the clutch is pressed, it could be the thrust bearing (clutch release bearing). It wouldnt have been linked to turning left or right though. It's really strange - can't pinpoint where it's coming from - would something like that sound metallic? Do you post on the Great War Forum incidentally? There's a forum member with the same name? Quote Link to comment Share on other sites More sharing options...
DaveD Posted April 20, 2012 Share Posted April 20, 2012 Anything loose on the exhaust system? Quote Link to comment Share on other sites More sharing options...
fintious maximus Posted April 20, 2012 Author Share Posted April 20, 2012 will try and get under the car tomoz and investigate... Quote Link to comment Share on other sites More sharing options...
stef123 Posted April 20, 2012 Share Posted April 20, 2012 does the car drive ok? pulling to one side? Quote Link to comment Share on other sites More sharing options...
fintious maximus Posted April 21, 2012 Author Share Posted April 21, 2012 Drives fine,just sounds awful! Quote Link to comment Share on other sites More sharing options...
fintious maximus Posted April 21, 2012 Author Share Posted April 21, 2012 Just had an early morning look under the car. Jacked it up and had a good nosey around and only things I could find were a rattle from the radiator plastic housing (this is all with engine off by the way) and when rotating the wheel by hand there is a very slight sound from where the driveshaft goes in to the gearbox - it's not a grating noise but doesn't sound as smooth asI would have thought - not that I know much about how they should sound! Quote Link to comment Share on other sites More sharing options...
fintious maximus Posted April 21, 2012 Author Share Posted April 21, 2012 Took car to a garage this morning and mechanic came out for a drive and he reckons that's it's definately not DMF but sounds like CV joint or a bearing that's close to going and also a bit of a blow in the front of the exhaust causing noise at high revs. I then took it back to where I bought it from and they have agreed to sort it out so in the meantime they've let me use a Megane (which is awful). Hopefully I'll get it back and sorted next week - fingers crossed. Quote Link to comment Share on other sites More sharing options...
pragmatix Posted April 21, 2012 Share Posted April 21, 2012 Glad your getting it sorted Quote Link to comment Share on other sites More sharing options...
stef123 Posted April 21, 2012 Share Posted April 21, 2012 hope it is only a shaft related problem and nothing to do with the gearbox Quote Link to comment Share on other sites More sharing options...
flying clutchman Posted April 22, 2012 Share Posted April 22, 2012 if it was dmf it would make the noise when styationary. If it's shaft related then it will only happen when moving. DMFs are normally no problem on petrols but.... Quote Link to comment Share on other sites More sharing options...
fintious maximus Posted April 24, 2012 Author Share Posted April 24, 2012 Right, sorted! Just got it back and it is brill. The problem was a large engine mount at the back of the engine which is a disk the size of a small football (garage description!) which had cracked in half. It's been replaced and I can't believe how quiet the engine is - dead chuffed and would like to thank Beauchief Cars in Sheffield for top customer service. Quote Link to comment Share on other sites More sharing options...
pragmatix Posted April 24, 2012 Share Posted April 24, 2012 Result, glad your sorted Quote Link to comment Share on other sites More sharing options...
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