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XC90 '02–'15 General Forum for the P2-platform XC90 model |
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Vacuum pipesViews : 1620 Replies : 28Users Viewing This Thread : |
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Mar 24th, 2021, 16:36 | #1 |
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Vacuum pipes
Just a quick one. I'm feeling lazy.
Does anyone know the internal diameter of the turbo vacuum pipes. The one from the vacuum pump to the solenoid and the solenoid to turbo. Got a fault code. Someone had been here before as the engine pads are not connected. They are clearly faulty and need replacement so for now I just want to replace the two I've mentioned above. Thanks |
Mar 29th, 2021, 21:17 | #2 |
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I've not removed then and measured. They are all 4mm ID
Apart from the one going to the turbo. It is a rigid plastic pipe which seems to be 5mm but the end is deformed due to last owner. I'm hoping to remove it and replace with my new 4mm ID pipe when it arrives........ |
Apr 5th, 2021, 17:41 | #3 |
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I've now replaced from the pump to the turbo solenoid with 4mm ID silicon hose. That's a straight pipe with no T piece or joins.
(I'm not using the engine mounts at present) The original rigid plastic pipe to the turbo is bodged at the solenoid end by fitting a pipe over it to join. I wanted to replace but I can't get to the turbo. I didn't want to pull the pipe off as seems I can't see it I was scared I wouldn't be able to get the new silicon pipe on. Any one done this. Do I need to remove the turbo? I have routed the rigid pipe round the side of the engine just above the gearbox. It was going over the engine with the pcv pipe. The problem I have is under heavy accelerating. Around 3k revs, maybe a bit higher. I lose power. It goes really flat. I have a code on Vida to say there is a vacuum leak. Is it possible it could also be the vacuum pump or a faulty turbo solenoid? Does anyone know how to check these. I am going to buy a vacuum tester so I can check the pipe going to the turbo. Under normal driving it seems fine. It's just had a full service done by me. All filters (except fuel(wrong one supplied)) will be done soon New oil and just had a coolant change Thanks |
Apr 6th, 2021, 10:46 | #4 | |
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Quote:
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Apr 6th, 2021, 12:04 | #5 |
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Apr 6th, 2021, 13:29 | #6 |
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If you have eliminated vacuum leaks, as you can when you have your tester, then the ECM-6805 is most likely caused by coked-up inlet guide vanes in the turbo. Operate the turbo actuator with the vacuum tester and check for full movement. If it only moves a little, it is the IGVs. Remove the turbo, clean it or replace.
Been there, done it.
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