Yes. Very good. I always do same now. After been stung with a diesel specialist. Who had my pants right down. As being one injector down. But they went a changed all 4 of them regardless. And charged over a grand . So makes sense to do leak test. And buy a recon injector and fit myself. And recode with a launch programmer if needed. Fully enjoyed seeing you do that. Really was interesting.👍
That was a great video !! I’ve got a misfire on my Range Rover. Local garage €126 an hour to tell me which injector needs changing. Much appreciated !!
I work for a motor factors and by coincidence a garage I called at today were doing a diesel leak off test. As you say definitely two injectors need replacement, it might be worth replacing the third one depending on cost. If you replace all 3 you will have future proofed it.
newer cars up to and above 60,000 psi esp the Euro 6,as higher pressure and smaller amount of fuel gives less smog,higher pressures actually do most of the job as it smacks the piston down on the power stroke with less fuel needed for combustion.
When you change injector make sure you take note of the codes and wich bore you put them in as they need coding and you cant see them with rocker cover on
How much diesel is supposed to come through the return line pipe while doing this test, stuck my return line in a 1.5l bottle and filled it up to 1 litre in just5 mins, injectors seems to filled to 5ml mark all of them . Thanks
Does this test shows if the injector is stuck closed right? Is this test useless if the injector open? I guess what Im saying is that it is more likely that the Inj2 is the opwn one and needs replacing where's the other 3 are ok. Wouldn't that make more logical sense.
Funnily enough after 2 weeks of being recommended this video, my 1.9 TDI (non pd) has started gushing out diesel from its 4th injector which is actually leaking out of the pipe where it sits on the leak off nozzle. Bought a leak off test to arrive tomorrow but with the diesel actually leaking from the hose itself, is that a case of the injectors that ruined or is there a sign of something more serious like an overload in leak off pressure?
Hello there. Normally the leak off pipes are just made from that braided rubber hose. Not high pressure stuff. It's common for the to perish and leak with age so don't panic. You can buy that pipe in sets of 4 from Halfords I think. Do your test with the engine up to temperature as I did on the video mate. You only need to run it for 2 or 3 mins. The VWs are pretty good engines. Let me know how it goes mate. You can message me through my Facebook page if you rather. Good luck buddy. 👍
i reckon you`ve got 3 injectors which are cream crackered mate, really it needs 4 injectors in it and as most injectors pack up within a few thousand miles of each other, you might as well get a WHOLE set of 4 , and that`s going to cost what the jag`s worth , UNLESS your either going to rebuild them yourself which is not that hard or buy recon injectors which if your keeping the jag, is a no no.
Thank you! This answers my questions on how it works, how you determine which one is bad and why it is bad.
Thanks … one chap on the net said that while you are doing this you should plug the leads that go back to the common rail so that air doesn’t get in.
Yes. Very good. I always do same now. After been stung with a diesel specialist. Who had my pants right down. As being one injector down. But they went a changed all 4 of them regardless. And charged over a grand . So makes sense to do leak test. And buy a recon injector and fit myself. And recode with a launch programmer if needed. Fully enjoyed seeing you do that. Really was interesting.👍
That was a great video !! I’ve got a misfire on my Range Rover. Local garage €126 an hour to tell me which injector needs changing. Much appreciated !!
I work for a motor factors and by coincidence a garage I called at today were doing a diesel leak off test.
As you say definitely two injectors need replacement, it might be worth replacing the third one depending on cost. If you replace all 3 you will have future proofed it.
Yes I think I will do all 3. depending on price.
it needs three injectors in it , also replace the pipes from the rail to the injector and torque up
I believe common rail fuel pressure is alot higher than 2000 psi, more like 2000 bar (29000 psi) or even higher with more modern diesels
newer cars up to and above 60,000 psi esp the Euro 6,as higher pressure and smaller amount of fuel gives less smog,higher pressures actually do most of the job as it smacks the piston down on the power stroke with less fuel needed for combustion.
Hope you do a video when you change the injectors, thanks for sharing.
yeah I will video when I change them. I need to save up my Penny's and stop buying old engines tho. lol
When you change injector make sure you take note of the codes and wich bore you put them in as they need coding and you cant see them with rocker cover on
Great video....Always wondered what Leak-off was.
Never knew my car had this sort of thing - very interesting! Look forward to the follow up video
yeah quite advanced for there age. I must say I love this car. I know she's old but she's bought and paid for and mine.
Another interesting watch thanks for sharing Adam.
Brilliant video. Clear and concise. Thank you 😊 subscribed
You sir, have the strongest norfolk accent I’ve ever heard😅😂
Lol.. yeah pretty strong. Hope you could roughly work out what I was getting at? 🤣🤣
How about trying to clean the bad injectors in an ultrasonic cleaner, pulsing them whilst running through some injector cleaning solution.
nice video of your orange overalls
Have the fuelsystem enytime get a realy clean , of a service 🤔
Take a look at what Tunap produkts
How much diesel is supposed to come through the return line pipe while doing this test, stuck my return line in a 1.5l bottle and filled it up to 1 litre in just5 mins, injectors seems to filled to 5ml mark all of them .
Thanks
What mm these pipes which into enjection? Thanks
Does this test shows if the injector is stuck closed right? Is this test useless if the injector open?
I guess what Im saying is that it is more likely that the Inj2 is the opwn one and needs replacing where's the other 3 are ok. Wouldn't that make more logical sense.
That's a good point and that depends on what a normal leak off reading is meant to be in ml
My 2.2 jags the same loves BP diesel hates Asda or cheap fuel
Are my eyes deceiving me or do you have pipes 3 and 4 swopped around?
Funnily enough after 2 weeks of being recommended this video, my 1.9 TDI (non pd) has started gushing out diesel from its 4th injector which is actually leaking out of the pipe where it sits on the leak off nozzle. Bought a leak off test to arrive tomorrow but with the diesel actually leaking from the hose itself, is that a case of the injectors that ruined or is there a sign of something more serious like an overload in leak off pressure?
Hello there. Normally the leak off pipes are just made from that braided rubber hose. Not high pressure stuff. It's common for the to perish and leak with age so don't panic. You can buy that pipe in sets of 4 from Halfords I think.
Do your test with the engine up to temperature as I did on the video mate. You only need to run it for 2 or 3 mins. The VWs are pretty good engines. Let me know how it goes mate. You can message me through my Facebook page if you rather.
Good luck buddy. 👍
what are the factory specs on that,anyone knows? thanks
Great thanks
You are welcome
I did the test and there was no fuel from the four injectors for 20 minutes. is that a problem?
No sounds perfect. The least the better.
i reckon you`ve got 3 injectors which are cream crackered mate, really it needs 4 injectors in it and as most injectors pack up within a few thousand miles of each other, you might as well get a WHOLE set of 4 , and that`s going to cost what the jag`s worth , UNLESS your either going to rebuild them yourself which is not that hard or buy recon injectors which if your keeping the jag, is a no no.
How would you know if an injector was blocked
It would leak off more fuel
Is it a Deutz.
No sorry 😐
Sounds like a cam sensor
Not that it matters as 3 and 4 are knackered BUT u had the pipes for 3 & 4 the wrong way round 😂
If it's the mondeo engine the injectors will be shagged. It's an inbuilt feature of the tdci engine lol
Leak off test is a waste of time, if you have a misfire, save your time, get the injectors out and get them tested.
Is this an old video? You don’t have many runner beans a growing lol
😆 🤣 😂