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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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2004 V40 1.9D Oil LeakViews : 987 Replies : 6Users Viewing This Thread : |
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Jul 9th, 2018, 16:50 | #1 |
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2004 V40 1.9D Oil Leak
Hello all.
I'm writing this today, because of something i have found on my particular V40. Yes, it's an oil leak. It's doesn't SEEM major, ie, no noticeable loss of oil being read on the dipstick, but it has left an oily film around a few parts towards the rear of the engine. It seems to be coming from the "Shut off throttle". Never heard of them before, but i saw it on another thread and thought that's what it could be. Now, an oil leak has been on the MOT history since it's first MOT back in 2007, and has periodically appeared then disappeared ever since. Same leak? Who knows. I'm not surprised that it's showed up on the MOT, because it has seemed to have dripped down the back of the engine and left the car with a damp/wet under tray. Images listed below. Sorry for the Imgur link; I'm not fimiliar enough with how this forum's posting system works yet as regards images. http://imgur.com/gallery/WPvgPjb I'm also wondering whether whatever that is could be responsible for the slightly erratic idle it has, ie, in colder temperatures (even at something like 15°C) it'll not settle at its idle RPM, dipping a bit below it repeatedly until it warms up. No where nearing stalling. Or would that be something EGR related? As I don't know when that was last, if ever, cleaned out. I have just put in a half bottle of Redex Diesel fuel additive, to help clean things up. I'll put in the other half when i fuel up next. Don't know whether that'll change anything? We'll have to wait and see. I read on another thread about the shut off valve, that one user had it explode while running, don't know whether that's something that can happen if left in it's current state, but i doubt it. After nearly 177,000 miles, something would have happened already, right? Anyway, thanks for reading! Hope i can work this one out and find out how to fix it! |
Jul 10th, 2018, 11:53 | #2 |
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You can purchase the o ring from either Volvo or renault, it's cheaper at Renault. Here's the guide for your problem.
https://www.volvoforums.org.uk/showthread.php?t=114946
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Jul 10th, 2018, 14:08 | #3 | |
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Quote:
A friend of mine has lent me some brake cleaner and advised that i spray off all where the oil is, then drive it for ten miles, stop and check it, and do that until i find the source of the leak. Looks like that's my evening sorted. Does the gasket have specific name? I'm just thinking for if i have to order one from either Volvo or Renault |
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Jul 10th, 2018, 14:13 | #4 |
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The PCV system vents excess pressure in the crank case back into the air inlet for the engine, oil goes with it and that's how the oil has found itself there. The rubber o ring shrinks with age and now it fails to seal properly. And because there's high pressure air there just before the inlet manifold some of the oil gets forced out once the seal is poor. It was one of the issues I found myself sorting not long after getting mine a few years ago on about 130k. I'm not around 193k with regular 5k oil changes and new filter. Excessive but cheaper than other things.
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Jul 10th, 2018, 14:16 | #5 | |
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Jul 10th, 2018, 14:17 | #6 | |
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Jul 10th, 2018, 14:50 | #7 |
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I think they last quite a while, I haven't had any issues since sorting mine out.
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egr, idle speed, oil leak, s40 1.9d, v40 1.9td |
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