 | Home > Td5 > Help! Td5 loosing power |
 
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| custom90 Member Since: 21 Jan 2010 Location: South West, England. Posts: 20347  
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Likely due to Turbo actuation and sticky vanes, the noise is the actuation stuck open, which in turns triggers limp mode which then cuts power. $W33T $0U7H3RN $UG4R
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23rd Aug 2024 9:01am |
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| landy andy Member Since: 15 Feb 2009 Location: Ware, Herts Posts: 5695 
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It sounds like one of the intercooler hoses is collapsing under the high pressure. If so it would be better in the cold, and worse with heat as the hoses would be softer. It could be a split in a hose, but I think that to be more progressive and not so abrupt.
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23rd Aug 2024 9:41am |
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| OWS246 Member Since: 04 Apr 2024 Location: Stroud Posts: 15 
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Ok so I have disconnect the actuator arm, and sprayed silicon onto it this means the dump valve can move pretty freely now.
I can check the pipes they feel soft in the heat but it seems to be abit better when the car is warm, will have another look! Just disconnected the actuator pipe and when Revving in idle which it is fine at this is blowing air shouldn’t it be sucking? Defender TD5 110 CSW Tonga Green 2006 Defender TD5 110 CSW Caledonian Blue 1999 |
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23rd Aug 2024 10:13am |
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| Penfold_6290 Member Since: 22 Sep 2021 Location: Dorset Posts: 317 
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The pipe you refer to operates the wastegate which vents off excess boost, therefore it will 'blow' not
'suck' as it comes from the compressor side of the turbo. If the wastegate is seized, as your revs rise and the boost increases the vehicle registers over boost and will limit power. One way to check it is free is to use a bike pump on the hose to see if you can get the wastegate to open using air pressure. Avoid an airline as the wastegate doesn't require very much pressure to open. The standard Td5 turbo is a basic design so there are no vanes to seize or actuators to worry about, just a simple wastegate. |
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23rd Aug 2024 2:38pm |
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| MadTom Member Since: 10 Sep 2013 Location: Olomouc Posts: 616  
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Any grease or oil on the wastegate turbo lever will burn and seize it more than before. Just disconnect it from the controll rod and move. It must move freely and easily. Withou disconnecting, you are fighting strong spring in the controller. "Drobek" = The Small One - Discovery 2, "Blufínek" = The Blue Thing - Defender 130, and for me at least Ford Mondeo
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24th Aug 2024 8:20pm |
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| BaronDefenders Member Since: 28 Jun 2019 Location: London/Cotswolds Posts: 896 
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Possibly turbo over-boost. Are you able to measure the boost pressure while driving? Charlie
1949 Series 1 80 (SOLD) 2002 Td5 90 (SOLD) 2008 Freelander 2 (SOLD) 1958 Series 2 88 Pastel Green (2019 LR Legends Best Restored) 1983 V8 110 Limestone (Previously owned by Tom Sheppard MBE) 2004 Td5 90 Santorini Black (Td5INSIDE Powered & Rebuilt by CSK) 2012 Puma 110 Zermatt Silver (Overlanding Build) Instagram: @BaronDefenders |
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25th Aug 2024 7:01am |
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| Dinnu Member Since: 24 Dec 2019 Location: Lija Posts: 3414 
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Check air filter too. Do Td5s have possibility of collapsing the intake hose between air filter and turbo inlet? But that would be in extreme cases. 1988 90 Hard Top, 19J Diesel Turbo, Shire Blue - Restoration ongoing
2012 90 CSW, 2.2TDCI, Santorini Black |
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25th Aug 2024 8:34am |
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