Last post on Jun 09, 2013 at 7:21 AM
You are in the Volkswagen Jetta
What is this discussion about?
Volkswagen Jetta, Biodiesel, Diesel, Sedan
#1687 of 4751 Re: 2002 tdi jetta doesn't like to start [blundy]
Feb 07, 2008 (9:53 pm)
I think we solved the problem. A few months ago, (6 or 7) I had a new key cut and programmed for the VW. That was because when I bought the car, it had only one key, a flip out laser cut key with the transponder in it. When the battery went dead, I tried my original key and the immobilizer thought it was the wrong key and it was being stolen. When VW put the new codes in my new key, they actually made the second key the master key. So, I put the new key into the ignition and turned it on and left it sit for 20 minutes with key on, not trying to start it, Went in the house for a cup of coffee and came back and the new key started the car and it runs just fine. Then I want back and got the old master key and it runs on that one too now. I have no idea what that computer is thinking but it reminds me of Hal from 2001 space odyssey. I had tried the new key without letting it sit and read itself and no start. I guess that's the VW preferred way of reprogramming the system albneit with the new master.
#1688 of 4751 Re: 2002 tdi jetta doesn't like to start [blundy]
Feb 08, 2008 (7:24 pm)
It is good to hear that you resolved the problem. It sounds as if you must have tried a lot of things before you get to that point.
#1689 of 4751 Re: 2002 tdi jetta doesn't like to start [bpeebles]
Feb 08, 2008 (8:53 pm)
Sure did but thanks to this forum and the advice that the jokers at the dealerships might just be worong, I decided to keep trying every hint I could find. Finally stumbled on it. Watch out, Hall is watching.........
#1690 of 4751 Re: Sluggish '05 TDI [inlarry]
Feb 09, 2008 (5:01 pm)
I don't know if you have gotten your problem taken care of yet, but when you say it runs smooth up to 2000 rpm, but then no power, and some light jerking when you try to accelerate, it sounds very similar to my past experience which ended up being the fuel filter. The first one was at 18,000 miles. I was surprised when it needed replacement again at 27,000 miles. Only thing I can think of was that I possibly was unlucky enough to have filled my tank right after the station had it's tank refilled, and a lot of debris stirred up from the bottom of their tank ended up in mine.
Anyway a new filter took care of it.
If that is what it is, it won't be a warranty item, so you will pay the dealer unless you do it your self, which isn't difficult. Best thing you can do is buy a Bentley service manual for your model. They aren't cheap, but saving yourself one dealer service will more than pay for it, and after that it's all money in your pocket each time you are able to use it to do your own service.
#1691 of 4751 Re: Sluggish '05 TDI [sandman52]
Feb 09, 2008 (5:10 pm)
Actually it turned out to be a combination issue...about 90% fuel filter, and a faulty MAF sensor. The dealer's doing the sensor, but replacing the filter myself fixed most of the problem.
#1692 of 4751 Re: Sluggish '05 TDI [inlarry]
Feb 09, 2008 (5:39 pm)
..."As stated before, if I had to guess, it would be the MAF. In addition anyone one anywhere anytime can get a batch of bad fuel. "...
Glad we could help in the diagnoses.
#1694 of 4751 Won't start? Air bubble?
Feb 10, 2008 (4:51 pm)
I changed the fuel filter in my 2001 Jetta TDI. Now the engine won't start. Is there is a bubble in the fuel pump? How do I get the engine started?
#1695 of 4751 Re: Won't start? Air bubble? [ranh]
Feb 10, 2008 (5:03 pm)
You need to "purge" the air out of a new fuel-filter. I do this with my oil-sucker pump (The hand-operated vacuum pump I use to change the engine oil) You can also use a brake-bleeder hand vacuum-pump to do this.
BTW: It is damaging to the starter to keep cranking the engine more than 10-15 seconds. Also, cranking the injection-pump without fuel could lead to a VERY expensive repair. (over $1000 for the injection pump!)
To get engine started:
1)pull hose off of new fuel-filter. (the one which feeds the fuel injection-pump with fuel.)
2) apply slight vacuum to the nipple on the fuel-filter... this will pull fuel from the fuel-tank and fill the fuel-filter with fuel.
3)When the fuel-filter is full, you will start to get diesel-fuel out of the nipple.
4) Re-install the original hose to the fuel-filter.
5) Start engine.
If you are careful, you will be able to stop sucking fuel at step #3 and lose very little fuel.
#1696 of 4751 Re: Won't start? Air bubble? [bpeebles]
Feb 10, 2008 (8:04 pm)
Thanks for replying.
I sucked fuel until it came out the nipple. Presumably that means the filter is full. I also squirted some fuel down the hose to fill it. Reconnected the house. Engine still won't start.
Is my next step is to pull it to a autoshop and let someone who knows what they are doing fix it? I thought I was so clever to replace the fuel filter myself. Duh.
Any other ideas?