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S40 / V40 '96-'04 General Forum for the Volvo S40 and V40 (Classic) Series from 1995-2004. |
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1.9TD Oil leakViews : 971 Replies : 8Users Viewing This Thread : |
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Apr 1st, 2018, 17:45 | #1 |
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1.9TD Oil leak
So I've got a slight oil leak around the top of my engine, however it's recently started to look quite badly in the top of injector 4. I've removed the intercooler pipe going to the shut off valve and egr, there was a little bit of oil in there and my intake manifold was all coked up. Also I've noticed that my acceleration was really poor once the engine had heated up. However with the maf unplugged it performs alot better. Any ideas as to what I'll need to do?
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Apr 2nd, 2018, 00:34 | #2 |
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Does the oil come from the point where the shut off valve (looks like a throttle body) joins the inlet manifold? If yes, see this guide: https://www.volvoforums.org.uk/showthread.php?t=114946
With regards to acceleration and the MAF, either the MAF is dirty or it is faulty. Try spraying some electrical contact cleaner inside the MAF element and see if it makes a difference
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Current car: 2002 S40 1.9D, 1992 240SE Nullius in Verba
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Apr 2nd, 2018, 10:59 | #3 |
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I had trouble with acceleration on my 1.9d which was fixed by unplugging the maf but it was actually the egr valve at fault. I wasted money on a new mag sensor for no reason. Just be aware of that.
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Phase 2 1.9tdi V40 |
Apr 6th, 2018, 00:39 | #5 |
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Yes, this looks like a faulty injector seal.
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Current car: 2002 S40 1.9D, 1992 240SE Nullius in Verba
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Apr 19th, 2018, 15:38 | #6 |
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I'm still stuggling with accerelation as soon as i plug my maf in, despite my egr valve being free and there being no air leaks, any idea as to possible fixes?
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Apr 19th, 2018, 20:23 | #7 |
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Sounds like it's time for a new MAF meter. Be sure to buy either a Genuine Volvo, Siemens or Renault and don't be tempted to fit inferior products from a certain auction site.
Volvo P/N 30887504 Siemens P/N 5WK9632 Not sure of the equivalent Renault part number so maybe someone on here can advise.
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Liam... '96 854 TDI SE, '99 V70 2.5D S, '05 C70 2.0T Collection, '05 S80 2.0T SE, '15 V70 D4 SE Lux Nav. |
Apr 19th, 2018, 23:36 | #8 |
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I would sort out the leaky injector seal as before you know it the injector and its clamp bolt will be welded in there with that gunk.
Take it from someone who has dug out an inch worth of black tarry stuff around a broken seized bolt! For reference, brake cleaner dissolves it and you can dig/flush it out with a long needle and a syringe. Only took me maybe three hours or was it six, I forget? Not on the volvo though so maybe don't worry. I would use genuine injector seal for preference and check and clean the injector seat if necessary. There is a tool for the job but note it is not meant to remove any metal! Might not be the case on the volvo but on the other vehicle I was working on the other injector seals gave up within months of the first one!
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'04 V40 1.9D |
Apr 22nd, 2018, 23:48 | #9 |
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Before you go and buy a new maf sensor you should make sure it isn't the egr valve causing the acceleration problem. I wasted money on a new maf sensor only for it to not fix it.
The way I tested my egr valve was by removing the actuator and putting a thin sheet of metal between the egr valve and the actuator. Just get a coke can, remove the top and bottom and cut from top to bottom so you can lay it out like a sheet of paper. Place the egr actuator face down on top and trace around it and mark the bolt holes. Cut it out and make the holes for the bolts and refit the actuator with the piece of metal between it and the valve. If the acceleration is now fixed you know that to be the problem and not the expensive maf sensor.
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Phase 2 1.9tdi V40 |
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