 | Home > Puma (Tdci) > Crunching Noise And Traction Control Light Flashes |
 
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| Browny90 Member Since: 20 Jul 2015 Location: Derbyshire Posts: 183   
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sounds like shaft splines worn or possibly even a broken shaft..
I've had them shear in such a way that you can still drive through them until under a lot of load.. so pulling off in 1st gear the shafts will be under the most load.. I guess it must be on an individual axle/ wheel and not gearbox related.. if it was the gear box I don't thing the TC light would light up.. (I could be wrong), but assuming they use the ABS sensors and if one wheel moves at different speed to the others it lights the TC light? certainly worth pulling out the rear shaft (as they are the easiest, then, maybe try it on a hill with and without the diff lock in, its always good to try and control a problem so you know exactly when its going to happen, this can help narrow down the options.. Good Luck and let us know how you get on. My 1986 90 is currently on a full rebuild, with new chassis, Paint etc.. Very much a hybrid, TD5 Chassis, tub & bulkhead with a 200TDI and LT77 GB Painted in Stornoway Grey  2 years off the road, but getting close to completion now |
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22nd Jun 2016 10:38am |
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| Browny90 Member Since: 20 Jul 2015 Location: Derbyshire Posts: 183
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re reading your post, are you sure its not just the noise of the TC working? they can make an odd noise while the TC is operating.. find a slippery grassy hill and test, leave it in high range no diff lock and test your TC.. My 1986 90 is currently on a full rebuild, with new chassis, Paint etc.. Very much a hybrid, TD5 Chassis, tub & bulkhead with a 200TDI and LT77 GB Painted in Stornoway Grey
2 years off the road, but getting close to completion now |
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22nd Jun 2016 10:40am |
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| schuee Member Since: 16 Jul 2012 Location: Lincolnshire Posts: 378 
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Thanks for the quick reply Browny90
I will give it a try mate and let you know, I have only noticed it when driving on tarmac, Thanks for the advise. Cheers |
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22nd Jun 2016 10:45am |
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| hornet Member Since: 04 Jan 2010 Location: Western Europe Posts: 325 |
Exactly the same with me (and others). No explanation available, but mine does it occasionally but regular from the beginning. But no faults or other issues related to that... |
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22nd Jun 2016 11:47am |
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| Rashers Member Since: 21 Jun 2015 Location: Norfolk Posts: 3337 
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When the Defender Traction Control is working (correctly) it does make a real nasty sounding grinding noise. It was one of the things which was highlighted on the half day Land Rover Experience. I am glad it was pointed out as I would have probably thought the thing was broken. Possibly why they highlight it. Saves the Dealers after sales department all the hassle of explaining there's nothing wrong.
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22nd Jun 2016 11:57am |
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| Roy5695 Member Since: 15 Feb 2014 Location: Cornwall Posts: 1123 
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check for chaffing of cables, especially the ones that come from the wheel sensors, this would short out and activate the ABS. Theres been a few cases of this, the loom runs underneath the vehicle on the passenger side.
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22nd Jun 2016 3:12pm |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 16876 
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I doubt it is any form of driveline spline failure since TC cannot help you drive out of that.
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22nd Jun 2016 3:13pm |
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| SimonDavies Member Since: 15 Mar 2012 Location: Swansea Posts: 244  
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Intermediate shaft splines worn?
When I would select 1st and pull off I would have a grinding noise. I would only have the same noise when I selected reverse and spun the shaft the other way. As time went on, this got much worse where any forward gear after a change would grind and you would feel it. Eventually it went completely - no drive. Just something to think about. |
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22nd Jun 2016 8:56pm |
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| jst Member Since: 14 Jan 2008 Location: Taunton Posts: 7686 
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if it is just TC working i would question why its coming on on pulling away anyway.
broken CV or shaft is my guess. does it off road much, large tyres? Cheers James 110 XS Utility 130 Puma Station wagon/camper (in the making) 90 Puma Hardtop |
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22nd Jun 2016 9:08pm |
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| Pinky Member Since: 09 Jun 2016 Location: England Posts: 205  
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I had this after the dealer renewed one swivel seal. Pulling away normally would initiate the TC coming on, took it straight back and it was simply that he had dislodged the wheel speed sensor, only by a fraction but it was enough. He re-seated the sensor and bingo! Back to normal.
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23rd Jun 2016 8:11am |
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| schuee Member Since: 16 Jul 2012 Location: Lincolnshire Posts: 378
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Thanks everyone,
Hopefully with all your advice I will be able to resolve this. Cheers |
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23rd Jun 2016 11:43pm |
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| jst Member Since: 14 Jan 2008 Location: Taunton Posts: 7686
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any joy? sounds like one up^ Cheers
James 110 XS Utility 130 Puma Station wagon/camper (in the making) 90 Puma Hardtop |
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27th Jun 2016 11:06am |
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| Clive Member Since: 21 Mar 2014 Location: Littleborough Posts: 467 
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I was also getting the TC light flickering and associated crunching noises occasionally on my Td5 90 when I first got it, mainly at low speed on a bumpy road, the odd thing was though that the radio would momentarily go off at the same time, turned out to be nothing more complicated than a loose earth connection on the bulkhead (loose securing nut) where they both share a common earth point.
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27th Jun 2016 11:45am |
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| Caterham Member Since: 06 Nov 2008 Location: Birmingham Posts: 6264 
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And where exactly would the equivalent earth be on a tdci?
thanks. |
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27th Jun 2016 12:10pm |
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