VW Caddy 1.6 TDI Low Fuel Pressure

[@00748040]

I have enjoyed your hard work and the way you diagnostic the problem to the core of the problem, not jumping straight to replace the parts..I myself I'm like to find why and what is causing the problem. The fault code is here to give an indication where to start .I really appreciate and happy to see people like you to take your time to digging into it to find the faulty part .Great example and great video and explanation as well. Thanks for your time and effort to produce nice and helpful video. 👍 😊

[@kennypatrol2zero616]

My god I have never see a injector, leak back so much, another excellent video, thanks

[@marion1600]

Great video and nice equipment! I personally always start with the injectors cause they seem to be failing most often

[@WiK_HB]

This is an excellent job you've done and I wish you would be located in Germany because I would not hesitate to bring my car to you. You are probaly one of the last real mechanics. Our Caddy is now nearly 3 weeks in VAG garage, due to the same complaint. They have now changed the LP Tank Pump, Pressure Sensor and Pressure Regulator and telling us now that its probably the High Pressure Pump which they are going to change know. The costs are until this point at nearly 3000€, what a desaster. I hope pump changing will fix the problem, otherwise I think about to contact an ADAC Lawyer and VAG Germany to complain this issue.

[@naeemsheik6032]

Good stuff sir....admire the way you have diagnosed the issue...thumbs up

[@JoeNunes345]

Nice educational video. And you’re absolutely right about taking your vehicle to someone you can trust. This is not a criticism to your advice, but my opinion that will not get you anywhere. At least 90% of mechanics who have been self employed for a while, have the wrong mentality and don’t realise that they are no longer dealing with basic things like plugs and points. The problem is, mechanics fail to update themselves and totally believe in what the scanner it telling them, or at least hope that the scanner is right. Anyway, I could go on and on. I really admire you for investing in yourself, both in terms of equipment and knowledge. Keep up the brilliant work. Best regards, Joe.

[@grantwatkins7402]

Awesome video Gary, that’s some colourful diesel that customer is using 😂

[@DanWallis86]

These videos keep getting better and better. Love the hubitools pressure sensor.

[@intelligentauto737]

So do I

[@choister1973]

@@intelligentauto737 Hi mate could you please give me some advice , Ive purchased a a3 audi 2lt 140 diesel 2011 from the auctions the guy who had the car before me he bought it in jan 2022 ive looked through all the paper work and he bought a fuel sender (from fuel tank)in january he as also had a new diesel pump fitted as this one on it looks shiny and new,hes also bought a new fuel filter, today ive had fitted a fuel rail with the fuel regulator and fuel pressure sensor onit. bought second hand from scrap yard, ive also had a new fuel filter thrown init I thought it had cured it as for 10 mins my car was flying and driving really well then the coil / glow plug light and engine management light came back on and it went back into limp mode, fault code is P0087 Fuel rail system pressure :to low, gutted.😂😂.its also missing a beat now aswell when stopped at traffic lights or driving. it doesnt konk out but feels like the fuel isnt getting through properly .Im wondering if there is a dodgy connection on the wiring somewere ,not giving up on her yet. when i start it its ok , then soon as it warms up n i try to boot it over 2000 then the coil light comes on and it goes into limp mode, I was on the motorway today it was in limp mode, I turned the egnition on and off to reset it, and i managed to get it running proper doing 80s n 90s in 5th n 6th gear. then 5 mins after limp mode n dreaded coil light again. im wondering if the last HPFP broke then maybe it sent some metal shavings into the fuel injectors, . would really apreciate some advice, if you were near manchester i would of gladly payed you to solve my issue, my mechanic is good but he aint on your level he hasnt got all that gear you got. would really apreciate some advice,thank you some one has advised me the fuel sender is either faulty or the wrong one has been fitted, i cant see euro parts giving the previous owner the wrong one,😂😂 that being said tonight I started her up tonight and some sort of whining noise was coming from the in tank fuel sender,

[@intelligentauto737]

@@choister1973 my best advice would be seek out a trusted garage that will perform a diagnosis based on evidence and not just fire parts at the car

[@choister1973]

@@intelligentauto737 cheers mate , thank you.

[@the_retired_mechanic]

Love those home made leak back syringe bodys Nearly brought a kit but now I'm going to copy your design as soooo simple and obvious design idea. Thanks again I learn so much

[@intelligentauto737]

I had a set of bought ones for years and they got damaged sometime ago, I priced the blue point kit and thought, how much! This setup cost les than £30 and I’ve been using them for over 3yr now

[@danith72]

Hi, I love it, is that like a long pipes syringes with adapters to the injectors? That's what I called an intelligent old school equipment

[@mrhint8394]

@@intelligentauto737 Hi mate Where you from I got same problem in my car but unfortunately I can’t find fullt

[@fereydoonvishkaei6368]

Excellent teacher and diagnostic

[@weldingjunkie]

Great job Gary you are 100% correct. Spending money where they shouldn’t be. I am Very surprised that scanner does not have the topology interesting. I made a few videos showing this

[@andystewart7086]

Nice video mate wish you where near me I would bring my golf in very hard to find a decent garage that doesn’t just want to fire the parts cannon at your car

[@robertmobileman8304]

great video as always , its hard out there the general public hate spending money on new parts because of cost but secondhand or internet reman never seem to work ... its becoming a nitemare

[@mihai1091]

too notch - brilliant troubleshooting there !!!! Thanks so much!

[@danieldurnin959]

Excellent info and diagnostics, thanks.

[@hamham4547]

What a nice job thank you for the very instructive video keep this kind of video specially for diagnose low pressure on common rail engine.

[@danieldurnin959]

Excellent run through. Great video, thanks.

[@michaelkelsall-spurr6995]

Very well presented and explained, thourogh clear diagnosis, excellent Thank-you.

[@lukeeboy149]

Best video ive seen Gary thanks. Any idea what cranking pressure should be? I have a Cay engine wont start after removing and refitting injectors to change rocker cover gasket. Ive ran the diesel purge on diagnostics for a good 5 minutes, ive cracked fuel pipe unions and have diesel there. Still no start. Live data shows cranking pressure 4-5000 psi. Thanks Luke

[@kevinpalmer7452]

Very impressive skill sets a pleasure to watch.

[@Russell_Duncan]

Enjoyed that Gary. Interesting stuff and educational for sure. Thanks for sharing 👍

[@ryanyoungs2622]

Great video intelligent auto, those injectors are so troublesome. We did a set on a caddy last week. Genuine only super expensive

[@chrisrobinson860]

Excellent video. These 1.6 VW engines are a pain fuel delivery wise. Otherwise they are a brilliant van.

[@itwork6810]

Very good video. DIdn't know about the scrap yard paint.

[@markoguberinic]

Question? If you looked at the live data from disney would you see the flaws?

[@SME_Ste]

Why was the diesel dark in colour

[@eoghanhennessy443]

Thank you wish I had the bit of kit you have .

[@JBTaylor86]

Appreciate your time and effort 👍🏻

[@jasbirkalsi2882]

Working back to pump in the tank confirmed all was good to the high pressure pump

[@MrBLANNY1]

whats your external pump set up like

[@steeleyg225]

How much are new injectors?

[@fazbari3187]

Hi , so am I right in saying on these systems ,low fuel feed pressure should always be about 0.5 bar , pre and post filter , thanks

[@simonedwards5401]

Good methodical approach good video

[@markoguberinic]

Greetings. I like the video, it's great. I just don't understand why you didn't measure the pressure from the low pressure pump to the high pressure pump. if you had measured immediately you would have known that the pressure drops at high pressure

[@seamushand8439]

Great logical diagnosis - well done

[@ArchieboldMagabe]

I have a 2011 polo tdi worth sturt just cracks for aa long time....sometimes after a long crank it starts but normally it doesn't it only starts with quick start gluid

[@radbot1]

When I removed the fuel return lines from the top of the injectors and turned the ignition on (before starting) fuel just pissed out of the return lines, as if being pumped from the tank pump. Is that normal?

[@dimisrambodimisrambo7285]

I see that you are an expert on diesels, I would like to ask you about a vw t6 cxe diesel engine bi turbo, I see the fuel pressure when I turn off the car to drop to 0 bar...shouldn't the pressure rise in the fuel rail initially? sorry but no I build diesel and I have no knowledge

[@scottrich976]

As soon as the engine stops, the pressurised fuel supplies are all dropped to the tank

[@domenicnicosia7457]

Thanks for another excellent video

[@rayenchc5800]

Bonjour, J’ai une Audi A3 2.0 tdi 170cv et elle a du mal a demarer. Ensuite quand j’accélère le voyant préchauffage et le voyant moteur s’allume et la voiture a une perte de puissance puis coupe. Après vérification le vase du filtre à gazole ne se remplit pas. Passage à l’ordinateur (code défaut P0087) Quelqu’un à il déjà eu ce défaut ? Merci d’avance

[@xaviergonzalez5145]

Thank you Sir! New subscriber!

[@AlexSmith-ts4ht]

Hi there love the video can I ask what part of the UK you are based I have a caddy with similar problem and 3 different garages can't find fault

[@intelligentauto737]

North east England

[@AlexSmith-ts4ht]

@@intelligentauto737 so am I, I am in sunderland can I send private message through KZbin I not sure if that's a thing on here

[@intelligentauto737]

@@AlexSmith-ts4ht ring the garage on 01914871384

[@mrhint8394]

@@intelligentauto737I got same problem and I also show to some different mechanic but thy can’t fix it

[@carstengotfredsen160]

Thank you for your amazing and inspiring videos, love them. It is always easy to look in the rearview mirror and be hindsighted. But was it perhaps not, faster to start with return from the nozzles? It's easy, tools do not cost that much. Where to start and where to end, it will always be a good question :) (Google translate)

[@masongray9046]

Fuel pressure and solenoid duty cycle are inverse of each other high % low psi can you tell on that

[@michaelagnew7825]

Write a book please

[@prashanshan7125]

Hi what is the correct low fuel pressure value..?

[@grahammason8558]

0.5 bar

[@Flyingspann3r]

Great video, nice equipment! Shame the owner didn’t come to you to start with, massive saving of time and money if he had. I’ve changed hundreds of those injectors on CAYC (car) and CAYD (commercial) engines. By using a previously enjoyed part you just spin the wheel and hope. I bet his mate didn’t replace the torque to yield bolt (they will snap and pop a dent in the bonnet when they let go if reused) or replace the adjacent injector (cyl 1) copper base seal, O ring seal and spill union seal, the spring clip retaining the spill union need replacing too after it was disturbed when removing the faulty injector cyl 2. (New seals and clip come with new genuine injector) Bet no sign of the bore cleaning tool to make the ports spotless for refitting to prevent leakage or coding in to the engine ecu for changed injectors 🤣. He prob allowed diesel to get on the cambelt during the repair which will kill it in no time. The resistance goes high causing the initial misfire, but with your one leaking back like that, I’ve only seen two fail like that.

[@RN-if3mm]

He should have changed the engine aswel while he was at it and probably got a full respray aswel for sport. I wonder does he no about the water that builds up in the tool box 🤔

[@Flyingspann3r]

@@RN-if3mm or just bodge it like most people who don’t have a clue with these engines… 😂

[@RN-if3mm]

@@Flyingspann3r should bring it to you so for fixing. Genius

[@Flyingspann3r]

@@RN-if3mm They did the right thing taking it to this bloke, he knows what he is doing. I’ve watched all of his videos, good kit and sound diagnostic skills.

[@RN-if3mm]

@@Flyingspann3r wont dispute that at all for me i tend to have to diagnose and fix these problems without spending 15k on electronics and equipment. It mite just take longer but by all means if this guy wants to donate a kit to me so i can fix them easier please do by all means

[@iankelly2110]

good diag Gary

[@danielgreenbaum8875]

Hi great video really good info have u any advice on a ambulance am working on ive got a fiat 3.0 diesel at work on injecter leak back when it cranks it doesn't start how much fuel should u see on cranking coming up into the bottles if if doesn't fire up or should no fuel be coming up until it starts if I cap off the common rail were injecter pipes connect it builds up to 380 bar connect injecter pipes back up it hits 90 bar max lad looked at when I was off and said high pressure pump put a new one on still same ? It leaks into bottles about 2mm after 10 sec of cranking had 2 4 set of injecters

[@intelligentauto737]

2mm into bottles and filling the pipes?

[@danielgreenbaum8875]

@@intelligentauto737 nearly all four on old set 4 and 3 on second set and these now in are from fiat dealer i haven't tested them yet but it ran and cut out my manager said and wouldn't start came up with fuel deviation faults but can remember fault codes should of taken photo but it never gets over 90 bar fluctuates but if I cap off injecter pipes on common rail it hits 380 bar in 2 sec and I looked at fuel pressure senser it went from 0.5v to 1.2 when I capped off rail so presumed senser and wiring and ecu is good must be knackered injecters again but my manager saying we can't have 12 dodgie injecters but only thing I was wondering if fuel regulater on rail opposite pressure senser is leaking possibly ?

[@intelligentauto737]

@@danielgreenbaum8875 without seeing it it’s impossible for me to say

[@adnandahmeti7653]

Great Job Teacher

[@vsheavy2792]

Just subscribed to your channel.keep it coming.

[@RPAUTOS]

What pressure tester is that? I need to get one.

[@intelligentauto737]

It’s a Hubitools tester, all kinds of adapters for it. Very versatile tool. They can be bought from Randstad Automotive www.randstadltd.co.uk

[@DavidJones-qp8kn]

What if it won’t start and it’s bringing up low fuel pressure dose that mean the pumps totally gone

[@intelligentauto737]

Not necessarily, but it’s impossible to say what it without testing it

[@DavidJones-qp8kn]

It was on the the same computer as that today as we cranked it over it would start and it come up low fuel pressure I’ve had pretty much the same night mate as this customer

[@DavidJones-qp8kn]

Thanks for your reply 😊👍

[@kashifmehmood9786]

Great video. But one request about voice Quality . Can u use mic ?

[@intelligentauto737]

I was using a mic but some reason which I can’t replicate it was hissing

[@britishpakstar988]

Where are you based? Can you fix my car please

[@intelligentauto737]

@@britishpakstar988 Gateshead Tyne & Wear

[@nickayivor8432]

PRODIGY Intelligent Auto Thank you very much helpful video. Have a great day and take care Intelligent Auto From Nick Ayivor from London England UK 🇬🇧

[@toyotoe3732]

Thank you

[@jamiemurphy3404]

Excellent

[@jasbirkalsi2882]

That the way to do it with right gear.

[@intelligentauto737]

And knowledge! 😁

[@masongray9046]

Love you video what happened to you

[@gentlesoul1513]

hello could I please ask if you are in the North east of England, if you are could I please contact you regards booking in my car for repair.

[@intelligentauto737]

Yes we are on Team Valley at Gateshead Call us on 0191 4871384 to make a booking

[@sara78130]

Thanks

[@colin5064]

These brand new injectors are costing approx £600.00,then most people will have to pay someont to fit it. Plus new stetch bolt and two new copper washers,as injectors are removed as pairs. These 1.6 tdi injectors have a very bad reputation for reliability,and you have four of them.

[@scottrich976]

They can be reconditioned but yeah they are a crappy design. The Piezo crystal stack shatters with the constant vibrations. Best to replace with retro fitted ones with adaptors fitted.

[@cesarjorgemurillobarientos1813]

good master

[@trevormansfield6740]

Another great video. Thanks

[@simonsherwood7169]

Great vid ,, not sure of sound not very crisp

[@ismarmeskovic]

👍👍👍

[@pauloneill8912]

leak off test to start with would have saved a lot of pissing about

[@simonrawle7885]

even the diesel looks questionable very dark all the crap going back to the tank

[@intelligentauto737]

That fuel is from my external fuel supply, it’s from a TerraClean machine and isn’t regular diesel. It’s naturally dark in colour

[@radiator1979]

Hi there in my neighbouhood there is no trustworthy car guy tak could tell sth useful from vcds reading. kzbin.info/www/bejne/opOXn2iNjpyplaM this is my measurement from vcds and don't know if my fuel valve reulator reading any good? I have go deviations on it and no clue it should be this way? I don't want to spen money on every fuel system spare parts to be replaced . There is not enought fuel pressureand my car mech. wants to replace my Fuel pressure regulator valve is he right? becouse of tha deviation he added.

[@muhammadadeem3199]

P106500 Vw