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Carrying out Diesel Injector leak off test, damage and repairs on Vauxhall Zafira Denso1.7 A17DTJ

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This video is about testing diesel injector leak off on a CRD style diesel injector rail. This is on a Vauxhall Zafira 1.7cdti A17DTJ but is the same on most modern diesel fuel injected cars.
Also, when you snap the plastic connectors as I did, replacing them and showing how to recover and solve this added problem!
Replacement injector leak off connectors and pipe:
www.ebay.co.uk...
Diesel leak-off test kit:
amzn.to/3MylKj5

Опубликовано:

9 мар 2022

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Комментарии : 28

@BreakTheRules2011 Год назад

Hi Andy, this looks to be the same engine layout as my 2011 Vauxhall Astra 1.7 cdti. I'm about to do a leak off test myself today so really appreciate this video and am expecting some snapping too 😅

@junkendriven Год назад

Hi Alistair, yes this same engine was used on the Astra too so it'll be similar engine layout. Good luck, hopefully you can tell if it's injectors or not. Look for quite a bit of leak off in a short time as a sure sign

@user-qo3ss3yf7v День назад

Have u ever use metal t pice. It just I got a fuel leak from them bits wonder if there any better

@adamlittle4267 Год назад

Suction control valves are very common on the 1.7s a17dtr engines gives hunting idel my astra van 1.7 has a slight miss on start but soon clears done that fir 5 years or so neaver got worse but iam suspecting a injector needs doing

@mbz4652 Год назад

I bought a new fuel injector return pipe as mine broken on the injection part. The problem is that the new pipe has a smaller diameter making is very difficult to enter the metal 'pipe' ending into the rubber pipe. As a result mine broke so I have to order a new one. Do you have some tips on how to bring it inside de pipe without damaging it? I have tried lubing the end with some oil and some soap, but without success.

@rozeenkhaleel9330 Год назад

Hi Andy i have just changed the scv and maf sensor it still misses a little bit on idle what do you think it could be Thanks

@liamkemp7649 2 года назад

Hi Andy, great video, this just happened to me , broken spigot. Can you tell me where you got that kit with the metal connectors?

@junkendriven 2 года назад

Hi Liam, links are in the description, for the connectors www.ebay.co.uk/itm/-/184226980621

@mbz4652 Год назад

I replaced the whole return pipe (T) and removed air from the system, now it won't start. What could be the problem?

@TheDJFra1 2 года назад

I am watching that video thinking, that must be costing you a fortune to make with the fuel prices :)

@junkendriven 2 года назад

Haha, very true! That fuel in the leak off collection must be a tenners worth!

@neildean7515 2 года назад

May i ask, i noticed in re ent videos you have cleaned, repaired Egr value, Dpf and not checking Injectors. May i ask, What is the issue/fault with the Zafira B 1.7cdti ?

@junkendriven 2 года назад

Hi Neil, I've done injector leak off tests in another video and those seemed ok too. It's very stuttery at first start, often won't boost at all until 5-10minutes into a journey (almost like turbo or actuator is stuck and frees up once car is running).

@nathanreid2974 2 года назад

what do you think the problem may be, and you said your car had a bosh injection system, i thought it was denso. Also have you looked at the fuel filter, that can cause smoke

@junkendriven 2 года назад

Yes Denso, I mentioned the correction on screen and later in the video, good spot! I replace fuel filter yearly as part of servicing so it's not that, need to track it down though!

@nathanreid2974 2 года назад

@@junkendriven the bosch systems were actually installed on the 1.7, but the corsa only as far as i am aware, hence suction control valve problems on the zafira. The zafira isnt the only car that has scv problems though, the nissan navara does too on its denso systems, but the navaras go in to limp mode on those, and thinkng about it has idle problems too.

@nathanreid2974 2 года назад

@@junkendriven does it always take that long to start

@bernardcorbally6555 2 года назад

@@junkendriven test your fuel for water if your getting white smoke from your exhaust

@leemdavies1234 Год назад

Any chance you can tell where to order a new fuel return pipe and connections from?

@junkendriven Год назад

Hi, the links to the parts I used are in the video description, ebay has what you need - www.ebay.co.uk/itm/-/184226980621 I'm guessing you were on the FB Zafira group asking about this after snapping one recently? Hope you get sorted out, relatively easy fix with these bits.

@nathanreid2974 2 года назад

21:14 Does it always take that long to start and with a rattal

@junkendriven 2 года назад

Hi Nathan, nah it doesn't normally take that long, I didn't show that I'd been messing about earlier with the leak-off pipes and this caused the rail to lose pressure, hence having to re-prime and taking a long time to start. It normally starts immediately.