 | Home > Puma (Tdci) > ABS activating |
 
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| Bluest Member Since: 23 Apr 2016 Location: Lancashire Posts: 4194   
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What model Def is it? I recall that on 2.2 Pumas the steering angle sensor can cause ABS/TC weirdness if it out of alignment. 2007 110 TDCi Station Wagon XS
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2nd Apr 2023 6:00pm |
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| Grizwold Member Since: 21 Jan 2023 Location: Lincolnshire Posts: 15 
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Sorry - its a 2.4 Puma and apparently it doesnt have a steering sensor.
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2nd Apr 2023 6:05pm |
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| Bluest Member Since: 23 Apr 2016 Location: Lancashire Posts: 4194
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Ok so have you checked for any play in wheel bearings? Other things.... Any damaged wiring to the the sensors? Tyre pressures all good? Have you a diagnostic tool that can read the ABS for trouble codes? 2007 110 TDCi Station Wagon XS
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2nd Apr 2023 6:38pm |
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| Grizwold Member Since: 21 Jan 2023 Location: Lincolnshire Posts: 15
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Thanks, wheel bearing play maybe worth checking. I have a gap IID tool and there are no fault codes and all wheel sensors are reporting back at slow speeds, bur haven't really checked each one individually yet.
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2nd Apr 2023 6:44pm |
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| Grizwold Member Since: 21 Jan 2023 Location: Lincolnshire Posts: 15
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Tyre pressures are good and wheel sizes all original. If its relevant it seems to happen more when turning right.
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2nd Apr 2023 6:45pm |
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| hornet Member Since: 04 Jan 2010 Location: Western Europe Posts: 361 |
I have exactly the same thing for 15 years now, from the first day I owned him. It doesn't get worse, but it's never gone away. A lot has been done to the axles in the meantime, but the issue remains. It will not help you but it calms perhaps  |
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3rd Apr 2023 5:15am |
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| Grizwold Member Since: 21 Jan 2023 Location: Lincolnshire Posts: 15
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Thanks Hornet, I am driving with it, but the more I look into it the more it's driving me mad! I think after 15 years I would be a gibbering wreck, then again I probably will be anyway.
I can drive super gently slipping the clutch really carefully and it doesn't happen but that's really not the answer. Cheers anyway. 👍 |
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3rd Apr 2023 7:40am |
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| Grizwold Member Since: 21 Jan 2023 Location: Lincolnshire Posts: 15
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I was hoping to use the GAP IID tool to watch the sensors when it happens but it appears you can only watch the sensors at super slow speeds and all I can really tell is that they're all reading something. Unless anybody can advise otherwise...
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3rd Apr 2023 7:43am |
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| Bluest Member Since: 23 Apr 2016 Location: Lancashire Posts: 4194
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Could you try systematically moving the sensors around see if you can isolate the problem? I.e. the issue moves from turning right to turning left when you swap the front sensors, you have a culrpit. Or get hold of a single replacement sensor and swap them out one at a time? (Assuming all 4 are the same). Of course it may not be a sensor issue. The system is fundamentally quite simple on the mechanical side so it shouldn't be too hard with a bit of time to satisfy yourself that everything physical is on order. 2007 110 TDCi Station Wagon XS
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3rd Apr 2023 9:40am |
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| LandRoverAnorak Member Since: 17 Jul 2011 Location: Surrey Posts: 11324
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It's highly likely that the system is working perfectly (hence no fault codes) and that the actual fault lies with the wheel bearings. Darren
110 USW BUILD THREAD - EXPEDITION TRAILER - 200tdi 90 BUILD THREAD - SANKEY TRAILER - IG@landroveranorak "You came in that thing? You're braver than I thought!" - Princess Leia |
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3rd Apr 2023 9:48am |
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| Grizwold Member Since: 21 Jan 2023 Location: Lincolnshire Posts: 15
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There may be a theme developing here.
I'll jack it up later and check wheel bearing play etc. Thanks again, I'll keep you posted |
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3rd Apr 2023 11:58am |
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| Grizwold Member Since: 21 Jan 2023 Location: Lincolnshire Posts: 15
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Will I be able to feel any play in the wheel bearings by hand? And if so is it new bearings or can I repack and tighten, assuming they feel ok.
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3rd Apr 2023 3:01pm |
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| Grizwold Member Since: 21 Jan 2023 Location: Lincolnshire Posts: 15
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Ok - quick update I've jacked up and checked both front wheels and the wheel bearings appear to be fine.
I also viewed the live data on the GAP IID tool and both wheels are showing the same values (although I'm not sure why they both sit at 1.1mph until you rotate the wheel.) I've only jacked and checked the fronts as I'm assuming its more likely there as it seems to do it more when turning. Although all wheels show similar figures on the GAP tool. Not sure where to go from here, I have had a quick check on the abs module for loose connections as it seems to do it more if you let the clutch snatch a little rather than a smooth release.  |
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3rd Apr 2023 5:02pm |
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| Grizwold Member Since: 21 Jan 2023 Location: Lincolnshire Posts: 15
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Another update, in case anybody's interested.
I've replaced both front abs sensors. I've replaced rear offside wheel bearings and seals (as there was a small leak) inspected and checked abs sensor but haven't got round to changing the rears as yet - but its on the list. Still have the same issue every time the car hits a bump in the road or a bit quick on the clutch the abs/tc kicks in for about 2 seconds. Its almost always when turning right and almost never when turning left or straight ahead. Its doing my head in, but I'll keep you informed. |
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18th Jul 2023 6:12pm |
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