 | Home > Td5 > TD5 shaking when going into idle. Trouble shooting ideas? |
 
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| miker Member Since: 13 Sep 2015 Location: Surrey Posts: 1763   
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Do you remember it not having the issue? They have a funny two level idle, it holds a high idle, then drops a bit lower after a few seconds.
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29th Jul 2017 1:50pm |
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| Scandihoovian Member Since: 22 May 2017 Location: Scandia Posts: 9 |
Pretty sure it started doing it 2 months ago. After the headgasket rebuild it was storaged for 3 months and got back into the road in april. In may injector was changed. I started really noticing it couple of weeks ago.
As said, I cant notice the shaking when the engine is warming up (from cold to normal running temps). But when the engine has been driven for, say, 30mins I start to notice it. Engine shakes relatively strongly for 3-5 seconds then calms down and purrs like a normal TD5. I cant remember if it has been ever wobbling longer than the 5 secs. It is not like the engine is tearing itself loose but strong enough that one goes Wtf??? It just doesnt belong there. |
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29th Jul 2017 2:01pm |
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| miker Member Since: 13 Sep 2015 Location: Surrey Posts: 1763
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Sounds like an injector mismatch, or injectors put back in the wrong places. Do you have access to a nanocom or similar?
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29th Jul 2017 2:17pm |
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| Scandihoovian Member Since: 22 May 2017 Location: Scandia Posts: 9 |
Nope, sadly I dont..
The nro.3 injector (violet?) was changed 2 months ago by the same shop as did the new head gasket job. Around here they are perhaps the most reputable shop around, and I assumed they would have done the matching and/or recoding if that would have been required...and it might be that they havent? The symptoms could match to that, or? |
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29th Jul 2017 2:25pm |
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| superspy Member Since: 10 Sep 2010 Location: Athens Posts: 11  
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I just answer to another member about.
Hope this helps, as I was having the same problem some years back... There is a possibility for a rough idle, when you are breaking and coming to stop that settles after 10-30 seconds. This was happening because the springs inside the flywheel were becoming very soft. As flywheel is dual mass and the position pick up takes reading from the flywheel, and the RPMs where dropping from traveling to stop the flywheel was having small vibrations (you dont feel it) and until the flywheel was settling to the new RPMs the idle was rough because of this small play, making the pickup to have intermittent readings. The idle was playing between 750-950 and making vibrations to the car. (Nanocom readings) I have change the flywheel and everything was ok. Having the flywheels (new and old) on hands, you couldnt feel the difference. I hope this helps. www.off-road.gr |
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12th Aug 2017 5:40pm |
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| ian series 1 Member Since: 17 Nov 2014 Location: south Posts: 3127 
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^^^ As above, suspect the DMF
 80" 80" 86" 88" 90"
Wanted, Forward Control Anything considered. |
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12th Aug 2017 6:21pm |
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| achuakh Member Since: 12 Apr 2012 Location: Singapore Posts: 158  
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do a little test.
drive the car and let it warm up. then after than do an emergency brake hard and see if it makes a difference when going from over 1500 rpm to idle when you screech to a halt. this will confirm the DMF theory. From the land of the most expensive land rover defenders on planet earth. At �125k for a XS 110 csw and you get to own it only for 10yrs! Please find me a good reason to stay on this island. |
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19th Aug 2017 3:33pm |
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| bankz5152 Member Since: 02 Feb 2017 Location: South London/North Kent Posts: 2168 
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Unlikely. My old 90 had a brand new Valeo clutch, DMF and Ashcroft box still did it, funnily enough on the old worn clutch and DMF it did not. My 110 does it too, pretty sure its the origial dmf/clutch The TD5 seems o have a "high idle" and "low idle" depending. Both my TD5s do high idle when on a slight incline near my house but not on flat roads or when parking up. |
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19th Aug 2017 8:07pm |
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| JWL Member Since: 26 Oct 2011 Location: Hereford Posts: 3443  
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Mine does it and considering that there's over 200K now on the original clutch and DMF it is a possibility but I also have a trait where if I park on a slight nearside slope such as at the kerb on a road with a decent camber it will start but is really sluggish to pull away and you could well be into second gear with your foot flat to the floor before it will pick up and drive like normal. It's meant that I have to park somewhere else and not right outside my fravourite chip shop as it can be embarrassing pulling out into the traffic with my chips
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19th Aug 2017 9:01pm |
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| Scandihoovian Member Since: 22 May 2017 Location: Scandia Posts: 9 |
Thx for the tip, will try tomorrow! |
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20th Aug 2017 7:29am |
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| Scandihoovian Member Since: 22 May 2017 Location: Scandia Posts: 9 |
Well, it seems dropping from higher revs to idle often causes shaking. 3-4 seconds of wobble and then things evens out.
Seems to be more pronounced after longer driving (warmed up engine & clutch), the car does not shake that much or at all when cold. Albeit the engine runs a bit unevenly for the first 1-2 minutes after a cold start. Oh well, mystery continues. Wonder if it would be the DMF, can it cause some damage if left unfixed? Like to the crankshaft/transfercase etc? Curious if I should get the clutch fixed pronto or drive the car until it falls apart...? |
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27th Aug 2017 7:33am |
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| achuakh Member Since: 12 Apr 2012 Location: Singapore Posts: 158
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I also notice that the way the "torque curve" in the tune of the engine affects this.
I had this issue before and it would hunt around for 2 seconds before going into smooth idle when I come to a hard stop. I have changed the flywheel the clutch the fuel pump the crank sensor and connector and finally the torque curve in my map and it's all good. I believe the balance of the fly wheel does have much to play and the torque curve of how much fuel is injected to get a consistent idle but it can be a whole bunch of things that you can play with as they are all linked. Another thing is to raise the engine idle speed by 30 rpm and that helps. Most significant change was when the fly wheel is new. When you have a tuned engine, the fly wheel seems to work a lot harder and wears out faster. Hope it went well for you. From the land of the most expensive land rover defenders on planet earth. At �125k for a XS 110 csw and you get to own it only for 10yrs! Please find me a good reason to stay on this island. |
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2nd Sep 2017 10:47am |
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