Question about 2003 Volkswagen Jetta TDI

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Fuel injectors Hello, where could i find a step by step instruction to pull out fuel injectors from 2003 Jetta 1.9L TDI ALH.... thank you....mario

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Is that CDI.

Posted on Jul 11, 2008

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Go to the public library they should have a manual for it.

Posted on Jul 03, 2008

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1 Answer

Why is it overfueling?


Engine light on? Pull codes and go from there. Could be bad O2 sensors, bad MAF sensor, intake system leak, stuck open injectors, etc. If there are codes that will help.

Sep 03, 2015 | 2003 Volkswagen Jetta TDI

1 Answer

How do i set timing marks for 2002 jetta 4 tdi 1.9 injector pump


timing is set on the alh tdi with a specialize set of tools, you have a holding tool for the crank, a pin type to hold the injector pump and a bar type tool to hold the camshaft. this will set the timing to basic settings when doing a timing belt job. you must then use the computer diagnostic specialized tool to set timing properly. Again, you will need specialized tools to perform this repair. Vag-com or vcds by ross-tech works very well if you are thinking about buying your own.

Cheers,

Greg

Feb 27, 2015 | 2002 Volkswagen Jetta TDI

1 Answer

Epc light on no gas flow


There is no throttle body on a TDI, but continuing to crank you engine with no fuel pressure will absolutely fry your pump and/or injectors (An '03 could be either an ALH or a PD engine, - different fuel injection systems, but same disastrous result in either).
Here's my .02:
DO NOT let a VW dealer touch your TDI. They commonly throw parts at it until the problem either goes away or they throw up their hands and say "I dunno". Either way, people routinely waste a boatload of time and money with no relief when taking their TDI to a VW dealer.
Go to TDIClub.com and look for a trusted TDI Guru near you (there's a list by state) and have one of these guys look at it. They're very helpful and more knowledgeable than 95% of VW dealers.
Good luck.

Mar 12, 2014 | 2003 Volkswagen Jetta TDI

1 Answer

VW 2003 Jetta TDI - I am getting a P0674 code, I have been to a couple of sites that seem to indicate that it's a bad glow plug on cylinder 4. Just wondering if anyone can direct me in the right direction....


www.tdiclub.com

Every question you will ever have about your TDi can be answered there.
Nobody knows TDI's better than these guys.

Check out "Glow Plugs 101" - step by step instruction on how to test your plugs on your TDI

http://forums.tdiclub.com/showthread.php?p=749854

Jan 09, 2011 | 2003 Volkswagen Jetta TDI

1 Answer

02 VW Jetta TDI with ALH engine glow plug


this is a common problem for these cars glow plugs go bad like spark plugs however the smoke would lead to bad mass airflow meter. it is not telling ecu corrcet miss. disconnect mass airflow meter. when cold see if this makes it start better. it should would means you need new m.a.f. glow plug issue take a test light place clamp on positive of battery then pull off glow plug connectors place tip of test light on glow plug the bad one will have a dull light unlike the good one which will be brighter. will need new plugs and wire harness four **** connectors and wire striper and crimper will fix concern good luck

Sep 01, 2009 | 2002 Volkswagen Jetta TDI

1 Answer

03 jetta tdi won't start turns over fast won't kick ,cracked open injectors it's getting fuel,also put a clear tube on fuel line and it is sucking in fuel


Ck. anti shake shut off butterfly valve(vacuum actuated) at intake manifold, sometimes they stick. I'm assuming all the glow plugs are working?

Jul 06, 2009 | 2003 Volkswagen Jetta TDI

1 Answer

2003 Jetta TDI Turns but does not start


If it starts when pulled by other vehicle then Glow Plugs. othervise check the Ignition Key Contacts, might be worn out.

I neither of those then give me some more information. What exactly engine it is, maybe u know engine code.

when you checked the fuel line fuel flowed when u tried to start the engine while the fuel line was disconnected from intake? have you checked the injectors? are they spraying fine or there's no command.

Jun 21, 2009 | 2003 Volkswagen Jetta TDI

1 Answer

VW Jetta 2005 engine indentification needed


The dealer gets there build info via computer link to the manufacturer data base for paticular car, you can be 99.99% it is correct.

Oct 17, 2008 | 2005 Volkswagen Jetta

2 Answers

2003 vw jetta tdi fuel filter


It is on the passenger side right behind the washer fluid fill tube. You can follow the fuel lines (look like 1/4" black tubes, some are clear) from the injector pump to it. It is a caniser a bit bigger than a normal looking oil filter and sits between the washer bottle and the metal that forms the wheel well. It is held in by a screw type clamp about half way down the cylinder. Probably isn't the fuel filter unless there is air in the lines to the injector pump or they didn't bother to fill the fuel filter up with diesel after putting it in. There is not a fuel pump in the tank in these cars so everything is sucked up by the injector pump and it needs to be primed properly.

Jun 25, 2008 | 2003 Volkswagen Jetta TDI

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