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XC90 '02–'15 General Forum for the P2-platform XC90 model |
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Diesel Purge ...Views : 11113 Replies : 59Users Viewing This Thread : |
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Feb 12th, 2015, 10:19 | #51 | |
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Last Online: May 28th, 2020 23:57
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Location: Wolverhampton
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Quote:
Make sure the pump and fuel rail are full of fuel by running the engine. Then suck the DP through the 8mm pipe and quickly reconnect the pipe to the pump, then crank the engine over. This should prevent too much air getting into the pump, once the pump has air in it, it will not suck up the DP, it then has to be primed again by the low pressure pump in the tank. Last edited by Shadeyman; Feb 12th, 2015 at 10:27. |
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Feb 17th, 2015, 22:50 | #52 |
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Last Online: Apr 29th, 2018 15:10
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Location: bournemouth
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the saga continues!
first I should explain that originally the car went into limp mode, diagnostics said egr /turbo and soot filter. The indy eventually thought it was the dpf so I had that removed and ECU remapped. following this the egr/turbo codes did not reappear. After it was idling slightly roughly, he suggested it might be an injector,and he explained perhaps unburnet diesel had clogged up the DPF-sounded plausable hence the saga to use the diesel purge. so I tried a smaller pipe still no luck, in getting it started tried the easy start which did make the engine fire up, but it stopped quickly , wouldnt get going again. So in the end have put a bottle of diesel forte and turbo cleaner into the tank(a third full) took it for a long drive , put it in manual mode and gave it a good italian tune .lots of black smoke when putting the foot down. It also stopped twice which was a bit unnerving to loose power steering, fortunately not going fast but had to pull over . it started straight away. also when it was properly warmed up it would loose power, and not respond much at all when floored , also no black smoke at this time. I thought perhaps the diesel forte had loosened a lot of crap and clogged the fuel filter, But after stopping for lunch after it was ok again when floored except for the black smoke. so what can cause these symptoms. Injectors?- it doesnt have a problem starting from scratch. I have replaced the air filter. EGR ? turbo problem? the indy has suggested having the injectors removed and checked for fault spray patterns etc. that will cost £20 each and then £150 for a reconditioned injector. It all seems a bit trial and error love the car just want to get it sorted Thanks |
Feb 18th, 2015, 08:25 | #53 |
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Location: southampton
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I take it that there are no loose pipes between the turbo and engine or that the intercooler is complete as your symptoms (espicially the large cloud of black soot) are typical of the air fuel mixture being wrong and commen cuases on the xc90 are either one of the pipes comming loose or a split intercooler.
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Feb 19th, 2015, 08:57 | #54 |
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Last Online: Apr 29th, 2018 15:10
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Location: bournemouth
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Thanks for all your replies.
I can just get my hand under the skid plate and there is a slick of oil on the underside of the intercooler. so I guess thats the culprit. I have booked her in with the volvo indy for him to have a look at. Hoping its not too expensive! |
Feb 19th, 2015, 10:00 | #55 |
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Last Online: Yesterday 21:02
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Location: Beverley, East Yorks
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There's a company on e-bay doing pattern intercoolers for around £100. I bought one and I think it is actually more substantial than the original.
A good Volvo indie will be able to do the swap in his sleep - should be about 2 hours labour. |
Jan 27th, 2022, 11:56 | #56 |
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Last Online: Mar 19th, 2024 21:37
Join Date: Jul 2020
Location: Kinross
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Love a wee thread revival!
Keen to dry diesel purge on my 2006 D5 185, have read a fair bit about the problems with the delivery pressure. Then I had an idea... I have a sealey power bleeder for doing brake systems, essentially a bottle that you fill with brake fluid, connect to your brake reservoir and pump up to pressure. Crack each bleed nipple at your leisure and enjoy seeing the manky fluid flow out! I need to double check, but pretty sure the bottle can pump up to a fair amount of pressure. Anyone see a problem with using this to run the Liqui Moly through? |
Jan 27th, 2022, 15:54 | #57 | |
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Quote:
I use a garden sprayer bottle.
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Jan 27th, 2022, 16:03 | #58 |
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Excellent will have to get some ordered and give it a go. The old girl is a bit lumpy in the mornings and generally could run smoother!
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Feb 3rd, 2022, 09:41 | #59 |
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Last Online: Mar 19th, 2024 21:37
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So it doesn't need the 3-4 bar tank pump pressure necessarily? I haven't had long to look at the engine yet, are the feed/return pipes easy to access and can I loop them to feed the diesel straight back to tank?
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Feb 6th, 2022, 20:21 | #60 |
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Location: Kinross
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Completed this today, good results. See this thread
https://www.volvoforums.org.uk/showt...74#post2805674 |
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