Diverter Valve Leaking Boost | Mitsubishi TD04 Turbocharger part 1
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- Опубликовано: 19 июл 2019
- Often missed TD04 turbo boost leak. Leaking boost robs power & economy. A turbo diverter valve leaking is easy to DIY repair or do a diverter valve replace.
Need a replacement valve? Here's a 'stock' replacement. I've ordered one myself and will do a review
bit.ly/TD04_BPV_stock
Here's one from Kinugawa to replace the stock item
bit.ly/TD04_BPV_Kinugawa_stock
If you prefer you could get an "upgraded" Kinugawa aluminium valve with a range of springs to suit 'mapped' cars
bit.ly/TD04_BPV_Kinugawa_upgr...
The eagle-eyed amongst you may have spotted I've fitted some blue silicon vacuum pipe. You'll be needing ID=4mm (except the fuel pressure regulator, which needs ID=3mm)
s.click.aliexpress.com/e/dwYTQSeU
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There is other method to seal a body of DV instead silicone: put some bolts thru the holes that head of the bolt is from turbo side. It will lift body of DV a few mm. Then on a flat surface hit the top of the body with a hammer. Not hard, just gently to bend up those lips with holes. It will make a slight "banana" shape on the edge and let the body better hold membrane on the surface. Some tuners in east europe stopped replacing these valves when they figured out how to make body fit better to the turbo
One again another really helpful vid. Most have watched on your channel have been a benefit. Thank you Cyd.
Do you have a Saab part number for the O-ring for the first part of the video (10mmx2mm) one? I looked at the Saab diagrams and can't seem to find it. Thank you for making such helpful videos.
I'm having issues with my boost first on my way to work the boost needle was on top of the letter T and boost was going quick from 9boost on the obd2 I reach 0. to then 0.2 ..
Is there a trick like this if your turbo is introducing exhaust gases into the coolant lines and over pressurizing the system look high and low and there's not much information vehicle in question Saab 9-3 2.0 Turbo 08 any information on this would be greatly appreciated
Can you do a video about P0101 on this engine? What is often the cause of p0101, what to check, how to solve it and so on. Thanks in advance, Best regards to you.
Hi Miroslav, P0101 relates to the Mass Air Flow (MAF) sensor, but is rarely caused by the sensor itself. A vacuum leak or boost leak is much more likley. All the same, give the MAF a clean (see ruclips.net/video/V6fxxprx1F8/видео.html), check for the leak detailed in this video you've commented on, check for this issue ruclips.net/video/bgLn14dZL3Q/видео.html. Check all vacuum pipes for any signs of splitting. Check all boost pipes for same. Also check the intercooler for leaks (they sage and break). You'll need to get the bumper off to get at the IC ruclips.net/video/Adkcj8kTo_U/видео.html. A dirty or sticking PCV valve can also be the cause, but you need to take the inlet manifold off to check the valve.
@@CycloneCyd THANK YOU for your quick respond. God I wish I lived closer to you so that you could take a look at my car. I did check the MAF, cleaned it, changed several and it is not the MAF. I bought the same blue intake hose that is attached in front of the turbo and still p0101 returned. Then I bought a used intercooler and replaced it with mine just to be sure. Still p0101. I did inspect closely hoses and could not find or see any leak. In your post (the last sentence) you wrote about PCV valve. Do you mean this car part ( www.eeuroparts.com/Parts/64074/PCV-Valve-12786376/ ) . If so then I must say I did not inspect that part. Didnt know that it can trigger p0101. Everywhere I read about p0101 they almost all say AIR BOOST LEAK. If PCV valve is bad it doesnt neccesery causing air leak right? As you said earlier if it is dirty or sticky then it can trigger p0101. I did manage to find a video on youtube ( ruclips.net/video/dIrD4bdbk8U/видео.html ) how to replace it. Ill guess this will be my next step then. Nearest Saab mechanic is 250 km from me so I am stuck with myself to solve the problem :) almost forgott, some people are saying that MAP can cause p0101. From what I can see my engine b207r (saab 93 ss aero 2003) have two MAPs. One is attached on the big hose that is connected to TB and the second one is located here ( ruclips.net/video/pgPCrioK-6A/видео.html ) . Can they be causing p0101?
Once again big THANK YOU for answering. Best regards to you.
Hello mate , do you have tried the replacment valve , the first link you mentioned ? just bought one ....thx for your feedback !
Not yet, I'm doing a headlight series at the moment, but will fit it soon. Let us know how you get on with it.
Is there somebody who tested the upgraded Kinugawa with B207R? I have seen a video where a guy complaining about that after the upgrade get only half boost. Is it worth to buy?
Hi cyd, I keep getting code p2261 on my Saab v6 turbo. I changed the turbo valve as well as the whole wastegate with no luck.
Hi Mo, have you checked the condition of the diverter valve and for vacuum/boost leaks? Which valve were you referrring to? Also check the integrity of the IC - they bow at the bottom and eventually leak. A smoke test might be a good idea. P2261 is usually a loss of boost, for which there are a myriad of potential causes, a leak of some sort being most likely. Also check cleanliness of your MAP sensor and wiring integrity for all sensors.
I'm having trouble locating that diagram on my 07 V6 93. I know yours is a 4 cylinder but wondering if you know where it could be located. I can't find it anywhere on the internet. Thanks in advance!
I have something else to add. I have this issue where if I'm going like say 55-60 mph, and I slowly give it some more gas, I can hear this air noise that sounds like a jet occur from the engine, and you can hear it clearly though the cabin. And the faster you go, the higher it gets and it also has the little fluttering noise that occurs with it. When you left off you can hear a big spool like it had a. Unch of boost holding up. Now this is still happening to me, even after I recently replaced my diverter valve with a Forge one. I'm still waiting for my breather tube o-ring to come in that mail. You think this is just happening because the o-ring might be going bad?
Doesn't the Forge divertor come with 3 springs? Try the weakest one first. That fluttering is the air going supersonic in the turbine due to excess boost pressure (known as cavitation) and it could wreck your turbo.
@adrianleon1731 Did you ever figure out what was causing the noise ? having a similar problem on a mates c70 🙈
Have a 2008 lancer myself 2 litre DID engine, getting a p0299 underboost myself, wonder if it’s a wastegate problem or a diverter problem...
Is it the same Mitsubishi TD04 turbo? Interestingly, I've worked out that I don't think a smoke test would reveal this leak ❗ So inspection is your only recourse.
There are links to replacements in the description
Speaking hypothetically, if you have the hard o ring and leaking air to the turbocharger, plus a bad diverter valve, how much boost would you be losing. Would it be quite a bit?
Since the lost boost is lost to atmosphere, then depending on how bad the leak is, then in theory you could lose all the boost. In practice from what I can see most people seem to lose around 2-4 psi. When a stock motor gives 12psi max, that is quite a significant chunk (about 1/3rd). Obviously the loss is unpredictable for any individual car, but even if it's only 1psi that's power and economy just sapping away there and potentially poisoning the cat through rich mixture.
@@CycloneCyd Wow yes that's quite a bit of power loss. I'm under the impression that I have the greatest possible amount of boost loss so I cant wait to fix it. I ordered a Forge diverter valve and a new o ring. Should be here shortly
Maybe you could help me in vacuum leak? I probably have but i don't have idea how to localize this.
Inspect all the pipes and tubes first. Squeeze them and bend them looking for cracks.
Best way though is to 'waft' an [unlit] plumbers torch along all the pipes and mating surfaces until you hear the engine note change. Then you know roughly where it is.
Use brake cleaner if you've not got a plumbers torch.
Is this a Hard job? The pipe from turbo to The airfilter you chanced to The blue pipe is Hard to get of do i need to take it of or can i do this you have done anyways
Hope you understand im from sweden 😀
yes, you do need to take the cobra pipe off to get at the diverter valve. You could try from underneath?
@@jonathankarlsson9644 never be put off by the language barrier. Google Translate is available to rescue us
Is it worth upgrading to a forge bypass valve or waste of money?
are you pushing more boost than stock? if you aren't it's not worth unless you want better blowoff noise.
Is that same O ring at 1:39 on Garrett turbos too?
TBH I don't know. It might be a gasket.
hi cyd i am currently having misfires problems could this potentially be the problem would this problem cause misfires ?
generally, no. A boost leak will usually cause rich running and slightly rich doesn't usually cause a misfire. What car is it? Is it a Saab 9-3 petrol? Aero 2.0T? Under what conditions does it misfire? And what codes are you reading?
@@CycloneCyd i Currently have a 2008 saab 93 2.0T it has a brew city boost tune a bsr cold air intake also cut one of the Catalytic converter's I have not put in my new spark plugs and I bought used OEM coils Typically the car back fires under full boost Typically lower RPMs but You can feel a jerk
@@CycloneCyd also no codes I took it to my local Saab shop they ran it for me for three on the t2 scanner and nothing Popped upJust three things but nothing related to the engine or that would cause the misfires But he did not have time to thoroughly check it just scan it for me
@@saabieauto331 What coils and sparks are in it now? Coils should be OEM (Mitsubishi) and sparks should be NGK PFR6T-10G - ALWAYS. Ignition issues can cause a backfire, so make sure this is correct first.
Beyond that, a backfire is usually caused by rich running. So check for boost or vacuum leaks
A collapsed IC is a fave for boost/vac leaks, as too are that myriad of 4mm vacuum hoses.
You were very lucky to get the codes read for free, but of course they are not going to do anything else. You'd be doing yourself a favour to get a reader of your own. I'd recommend this one amzn.to/3fruabM It'll last you a lifetime and over the years it'll save you a bundle.
@@saabieauto331 Have you checked your throttle body, turbo, MAF and MAP are clean?
ruclips.net/p/PLOaePmzqZNJ3lc4ZFKbck22LRNHl3rZOE
This is popular your side of the pond
amzn.to/35Zl435
could this cause p0033 code?
Hi Alpha, P0033 relates to a problem regulating boost, so YES it could be caused by a leak around the diverter valve. Nearly every TD04 equipped engine is likely to have this problem, so it's worth an hour sorting it out.