Question about 2000 Volkswagen Jetta TDI

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2000 vw jetta tdi glow plug problem ?

Heya !
So I am having a similar problem that was already posted but I have already done the suggested solution.My tdi won't start on it's own on cold days. It will jump and push start. Last winter we took it in and they replaced all the glow plugs and the relay but the problem still exists. We also put in a brand new battery. And even on warm days i still have to turn the key back and forth a couple times ( like 5 or 6) before it kicks over. Help please ! ? !

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  • hart804 Dec 13, 2008

    The glow plug light goes off to soon

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  • 84 Answers

Ok , ok. Give me some more information and we'll solve this. We're talking about a jetta TDI 2000 with an ALH engine code I figure.
#1 Do you have an faults recorded in the ECM like a check engine.
#2 Are you using synthetic oil 5W40 preferably Castrol?
#3 How old is your fuel filter?

Posted on Oct 31, 2008

  • helpyou Oct 31, 2008

    #4 Has your timing belt been serviced and how much milage?



    I can totally help and have many more ideas. We'll get it started no problem. Don't worry.

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I have a 2000 Jetta diesel. Can you tell me where the plug for the block heater is? If indeed there is one.


In addition to the 4 primary glow plugs, the cooling system also has 3 Coolant Glow Plugs to help provide extra heat to the cooling system in order to warm-up the vehicle's interior more quickly, and enhance overall engine warm-up time. (Example - Some Mercedes diesel engines use electrical heaters in the cabin because their engine is so thermally efficient.)
Likewise, this auxiliary source of heat from the 3 Coolant Glow Plugs is necessary because of the VW 1.9 TDI engines outstanding efficiency, which wastes very little heat.


The 3 Auxiliary Coolant Glow Plugs are located at the end of the aluminum cylinder head (in a protruding flange) directly below the vacuum (brake booster) pump, which also connects to a coolant hose.

tdisline_180.jpg


The 3 Auxiliary Coolant Glow Plugs use two (underhood) relays which are monitored and controlled by the ECU. During a cold start, the vehicle's interior temperature selector switch helps the ECU choose one of three modes depending on the amount of heat required to warm-up the coolant.

For example, Coolant Glow Plug #1 can be selected to operate all by itself, or #2 and #3 can operate together as a two-some, or lastly, all three glow plugs can form a triple source of heat for maximum enhancement of engine warm-up time.

After the engine is completely warmed up and the thermostat is open, the Coolant Glow Plugs normally shut-off and remain off unless the (thermally efficent) engine cools down sufficiently to have the computer signal them to come back on to keep the engine and cabin air warm. Extensive idling times at stop lights or in the driveway are scenarios where these glow plugs are most likely to recycle on and off.

In conclusion, the period of Preglow and Afterglow is determined by the engine's coolant temperature (during a cold or hot start), which helps the ECU select a predetermined time-cycle for the combustion chamber and / or Auxiliary Coolant Glow Plugs to follow.

Finally, one myth that needs to be immediately debunked, is the belief that the TDI's advanced Glow Plug System is linked to the opening of the driver's side door, which is false! It is also noteworthy to mention that some earlier VW diesel glow plug systems were operated in this manner, but not so with the advanced VW Jetta 1.9 TDI engine.




Please do rate my response. Thanks!

Jan 23, 2011 | 2000 Volkswagen Jetta TDI

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2000 Jetta TDI: How do I change spark plugs on 2000 VW jetta 2.0...


You're in the TDI (diesel) solutions section so it uses glow plugs.
If it's a petrol engine 2.0L then it would be accessible above and below intake manifold using a swivel spark plug deep socket.

May 16, 2010 | 2000 Volkswagen Jetta TDI

1 Answer

The glow plug light on my vw polo has appeared on my car what does this mean? is it ok too drive


The glow plug on the dash indicates various problems with the engine, you need to get diagnostics done as soon as possible as it might become serious.

Apr 12, 2010 | 2000 Volkswagen Jetta TDI

1 Answer

My diagnostic reader says glow plug # 3 cyl faulty which cyl would that be 2005 vw tdi jetta


you need to replace all of them ,,,if you just replace one the load on the new one will just make them go bad one at a time

Nov 16, 2009 | 2000 Volkswagen Jetta TDI

1 Answer

My 2002 Jetta TDI seems to be having a tough time


yes glow plugs have a lot to do with engine having tough
time in cold weather. before replacing glow plugs
check relay and fuses.

Nov 14, 2009 | 2002 Volkswagen Jetta TDI

1 Answer

I have a vw bora 1.9 tdi and the heater plug light has started flashing and the car says engine workshop


There are a number of different causes of this problem. Check all glow plugs. Check glow plug relay. If both are ok....This may seem unusual...Check the brake light switch situated at brake pedal. A faulty brake light switch will cause the glow plug light to flash
Good luck with it
John

Oct 01, 2009 | 2000 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

NO POWER TO GLOW PLUGS


I have a '98 Jetta diesel that had problems with the glow plug circuit. I ended up replacing the harness and a fuse. All the information I needed to know I found on this web page:

http://www.tdiclub.com/

You will have to sign up to post questions, but it's free. I've had many other problems as well and found the experts there very willing to work with you.

Tom

Mar 13, 2009 | 2000 Volkswagen Beetle

3 Answers

2002 Volkswagon Jetta won't start in cold weather


well will it start using a little shot of starting fluid ? if so you might have a weak pump . try this and see . thanks Jerry

Feb 05, 2009 | 2002 Volkswagen Jetta TDI

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