Question about 2003 Volkswagen Jetta TDI

2 Answers

There doesn't seem to be power to the glow plugs when there should be

Posted by on

  • 2 more comments 
  • Greg Gallinger Dec 02, 2009

    No check engine light runs fine once running and warm but very hard to start when cold and no power to glow plug. light in dash comes on for 2-3seconds and goes off. no power when light is on. I tried to disconnect the temp sensors (3 of them) as seen on another site and still same thing?

  • Greg Gallinger Dec 02, 2009

    One plug is .7 the others are all .8 ohms so I'm pretty sure the plugs are alright! where is the relay for the glow plugs? is it one of the ones attached to the firewall inside a plastic container?

  • Greg Gallinger Dec 02, 2009

    I think the fuses are ok but only checked the ones inside drivers side. are there any others for the glow plugs?
    thanks for the help

  • Greg Gallinger Dec 03, 2009

    The glow plugs have power only after the car is running! WTF? no power while the glow plug light in dash is on... not untill the engine is running and then they stay on the whole time??? What could cause this?

×

Ad

2 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Novelist:

    An expert who has written 50 answers of more than 400 characters.

    Governor:

    An expert whose answer got voted for 20 times.

  • Expert
  • 94 Answers

How did you determine there is no power getting to them? If the glow plug light comes on and then turns off immediately, that is the glow plug controller telling you the glows are burnt out.

Test the glow plugs by using a multimeter with an ohm tester. Take the engine cover off and pop the glow plug wires off the glow plugs. They should pop off like a spark plug wire. Find a suitable ground and place the positive lead on the glow plug. It should read approx 1.0 ohm resistance give or take 0.5 ohm. If you find that you have one or more plugs with either high resistance, no resistance, or a large variation between the 4 plugs, then you have likely diagnosed the problem and the plugs need to be replaced. If they are all the same or within .1 or .2 ohms, then the plugs are not the problem.

Beyond that, make sure you have done the obvious and check the fuses. The relay may need to be replaced as well. Good luck.

Posted on Dec 02, 2009

Ad
  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Master
  • 1,615 Answers

If that were the case the check engine light would be on if it started and still there should be code stored to help diagnose.

Posted on Dec 02, 2009

Ad

1 Suggested Answer

6ya6ya

6ya staff

  • 2 Answers

SOURCE:

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Glow plug fues blowes


the glow plugs have a rail/wire that joins /links all of them that rail receives 12volts across it ,check that it is not touching against any metal earth surface ,if it seems to be fine disconnect the power wire to the rail and insulate wire .Then refit fuse and turn on key ,if the fuse blows you know that there is a short in the wiring going to the glow plugs ,if the fuse does not blow it is highly likely that one of the glow plugs has shorted and needs replacing

Jan 15, 2014 | Cars & Trucks

1 Answer

Glow plug light dose nt cycle like it should.


This is caused by burnt out glow plugs, when the glow plugs fail it changes the resistance so the glow plug controller/timer doesn't cycle properly, it is the same as when a turn signal bulb burns out.

Feb 09, 2012 | Cars & Trucks

1 Answer

I have a 1995 Silverado-1500 series and the problem that I have is that power doesn't reach the glow-plugs...


You probably have a blown fuse that powers your glow plugs. If the fuse is blown, the glow plug relay won't energize, or click, causing no power to your glow plugs.

I’m happy to help further over the phone at https://www.6ya.com/expert/jeremy_69f3cc28d95bf514

Jun 02, 2011 | 1999 Chevrolet Silverado 1500

1 Answer

Car wont start when engine is cool


sounds like a glow plug problem,if it starts o.k. when warm,but not when cold,does it smoke a lot when trying to start it cold,if so i would say your glow plugs are either burned out or theres no power to them when you turn on the key,do you see the glow plug light on the dash,it may light,but that doesn,t mean the glow plugs are getting power

Apr 16, 2010 | 2000 Toyota Land Cruiser

1 Answer

My glow plugs are not working... they all read 1ohm and so are good as new and there is no power to the rail. I have checked the fuses inside the car and all seem good. Is there another location for the...


Golfs have a 'Heater' fuse which is a metal strip labeled 55 or 80 amps located under a clear plastic cover. There is also a glow plug relay in the fuse block but that would not turn on the glow indicator if it died.

Dec 02, 2009 | 2002 Volkswagen Golf

1 Answer

I got a problem with ford ranger?s glow plug. I


you are right the glow plug system should be on not after the engine starts, i suspect the timer is bad or has been bypassed,

Nov 26, 2009 | Ford Ranger Cars & Trucks

1 Answer

Glow plugs want work


Have you checked out the glow plugs to see if they are still good? Also pick up a copy of Haynes Diesel Engine Repair Manual, part#10330. Starting on page3-36 they have an excellent diagnosis section for your glow plug system. Hope this helps.

Oct 22, 2009 | 1992 Ford F350

2 Answers

My toyota land cruser is poor to start first thing espesialy when its cold , I have replaced the glow plugs and fuel fillter


didyou replace the manifold heater?
have you checked the relay?have you checked to see if there is actualy power getting to the glow plugs? and also the fuse .
It is very srtange ,if the glow plugs are working ,for it not to fire up straightaway .Does it miss when it does first start?If so, the glow plugs are not all working.Last thing try giving it a squirt of aero start, or starter fluid , if with that ,if it doesn`t start straight away, then you better come back to me as i have another idea what could be a problem but I dont think the glow plugs are working properly so try the aero start first "youdoit"

Sep 13, 2009 | 2000 Toyota Land Cruiser

1 Answer

Glow plug system does not seem to work


Likely, I would check the glow plug relay.

Mar 24, 2009 | 1996 Ford F350 Crew Cab

Not finding what you are looking for?
2003 Volkswagen Jetta TDI Logo

225 people viewed this question

Ask a Question

Usually answered in minutes!

Top Volkswagen Experts

Colin Stickland
Colin Stickland

Level 3 Expert

22485 Answers

Marvin
Marvin

Level 3 Expert

85222 Answers

Jonah Oneal

Level 3 Expert

14092 Answers

Are you a Volkswagen Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...