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Home > Technical > Vibration when accelerating in 4th 5th and 6th gears |
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Tigertim Member Since: 23 May 2016 Location: Doncaster Posts: 124 |
Yes it is really weird as engine resonance transmits through many components it is very hard to pinpoint I became obsessed with finding the culprit and changed so many things mostly not too expensive and very nearly bought a second hand gearbox to try but decided to just live with it in the hope one day it will become so bad it will break something and we have the answer... keep us updated on your findings Tim |
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18th Sep 2019 5:36 pm |
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re-book Member Since: 17 Sep 2019 Location: Berlin Posts: 11 |
hey tim
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18th Sep 2019 6:46 pm |
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Tigertim Member Since: 23 May 2016 Location: Doncaster Posts: 124 |
Yes I too have wondered about transfer box but apparently when they are on the way out you can feel a lot of axial play in the output shaft and mine feels solid . My mrs drives ours mostly now and that’s only local so doesn’t notice it but when we go on a longer trip I drive it and drives me mad and really spoils an otherwise great car . Keep on searching ... |
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18th Sep 2019 9:01 pm |
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re-book Member Since: 17 Sep 2019 Location: Berlin Posts: 11 |
Hey Tim.
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19th Sep 2019 8:33 am |
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Tigertim Member Since: 23 May 2016 Location: Doncaster Posts: 124 |
Keep us updated cheers Tim |
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19th Sep 2019 7:34 pm |
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re-book Member Since: 17 Sep 2019 Location: Berlin Posts: 11 |
Hey Tim
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23rd Sep 2019 6:48 am |
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Tigertim Member Since: 23 May 2016 Location: Doncaster Posts: 124 |
Hi yes I’ve had mine reset and also did feel better for a while . Reset alters the rpm at which gear changes happen until the gearbox relearns your driving style so you tend to drive through the 1650/1850 rpm zone and so don’t get the vibration. Drive in sport mode for a while and you prob notice it’s not as bad as the gear changes are later Tim |
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23rd Sep 2019 7:58 am |
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re-book Member Since: 17 Sep 2019 Location: Berlin Posts: 11 |
Yes, it became a little bit smoother.
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23rd Sep 2019 9:56 am |
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re-book Member Since: 17 Sep 2019 Location: Berlin Posts: 11 |
Hey
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24th Sep 2019 7:01 am |
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markyzs180 Member Since: 26 Jun 2018 Location: Solihull Posts: 64 |
Hi Re-book, if you search Tim's original post you'll see that I too suffer from the dreaded vibration. Mine, however, shows itself in lower gears both Tim and myself have changed many parts but have still not got to the bottom of it! I had also given up worrying about it BUT having changed the front brake discs and pads earlier this year I have noticed the LH brake disc has some uneven wear? I'm now wondering whether the caliper piston may be sticking so I think I'm going to pick up a new caliper and give it a go... if it doesn't fix it then I'm doing a Tim and waiting for something to go bang!! |
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24th Sep 2019 9:54 pm |
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Simon J Member Since: 27 Jul 2019 Location: Norn Iron Posts: 703 |
Before getting my FL2 I needed to tow my car trailer over to England and back and a friend was kind enough to lend me his 2011 Mitsubishi Outlander which I understand has the same Diesel engine as the FL2. I drove it for about 1,000 miles and at no time did it ever exhibit the vibration/resonance at around 1,800 rpm that many of us seem to have with our FL2s. Since it’s seemingly directly related to revs and not road speed it seems unlikely to be a transmission problem and my friend wondered if it might be related to the alternator drive belt. Looking at aftermarket belts, the Outlander would seem to have a different part number to the LR one so perhaps they have different alternators and the problem might lie there or, if there is one, with the idler pulley?
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24th Sep 2019 10:10 pm |
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IanMetro Member Since: 11 Sep 2017 Location: Somerset BS21 Posts: 3111 |
If you are looking at vibration in the alternator area, have you checked the one way clutch in pulley?
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24th Sep 2019 10:25 pm |
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Simon J Member Since: 27 Jul 2019 Location: Norn Iron Posts: 703 |
Interesting indeed. To be honest, I haven’t started investigating anything yet but am puzzled by this odd vibration at the same spot in the rev range, no matter which gear, although it’s more apparent in the higher gears. It also coincides, more or less, with maximum torque ...? |
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24th Sep 2019 10:31 pm |
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Tigertim Member Since: 23 May 2016 Location: Doncaster Posts: 124 |
Hi yes I drove with no prop for a week or so and although not as bad the vibes were still there . When I first started looking into this problem my first thought was serpentine belt tensioner as it was wobbling like mad so checked alternator pulley swapped belt and tensioner and also crank pulley too , no difference . |
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25th Sep 2019 8:09 am |
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