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#51 of 273 2004 Jetta TDI stalls and refuses to restart
Jan 12, 2008 (11:52 am)
A friend of mine has a 2004 diesel Jetta (mine is a 2006 TDI) that stalled as we were leaving a parking lot on Dec 24th. It eventually re started and we managed to get a few more miles before it stalled and refused to re-start. Since it was Christmas and no one was available to fix it we left the car untouched until I was able to have a look at it on the 26th. I removed the fuel filter and drained it and found the fuel was black enough that you could not see the bottom of the container I poured the fuel into. I flushed the filter a couple of times with kerosene since I didn't have any diesel on hand. I filled the filter with kerosene and re-installed it. The car started and we were able to get it back home. I advised them to take it to the local VW mechanic and have a new filter installed after checking out the condition of the fuel remaining in the tank (which was just shy of being full). Well, they change the filter but did nothing about the tank. Tuesday of this week the car died on them again and had to be towed to the shop. This time I was there to talk to the mechanic and advised him he needed to check the condition of the fuel in the tank as well as change the filter again. Filter was changed (those suckers cost $45 Can.) and the tank wasn't touched as it was once again, near to being full. The car died again last night and I was asked to see if I could help out. I had the owner turn the engine over after I had disconnected the output hose from the filter ... no fuel came out. I re-connected that line and took the input line off; again, no flow of fuel while cranking the engine. We pushed the car to a safe place and I said I would check in today when the sun came up and it wasn't pouring rain out.
The first thing I did was make sure everything was turned off so I could hear if the fuel pump did anything when I first turned the key to the one position. I could hear the pump activate for a few seconds then stop. It sounds like this car has a diaphragm-type pump. At least that is the sound I heard. I repeated this several times until it no longer made the noise. I then tried to turn the engine over. The engine turned over for about 10 seconds or so before it gave a kick. I tried a couple more times before it started and stayed running. Hmmm, gotta love those problems that are there one minute then gone the next!
Once we got the car home I had a look at the "sending unit/pump assembly" in the tank. Can't tell much by looking at that! I did manage to shine a light into the tank and I don't see any obvious difficulty with the fuel.
I am thinking there is some sort of intermittent fuel pump problem but I am not sure. I suspect those tank units are not cheap and don't want to suggest to those folks that they pay for a new one without being sure that is the cause of the problem.
Any thoughts or directions on this problem would be appreciated.
BTW the car has under 100,000 kilometers on it.
#52 of 273 stalling/rough running/hard starting
Jan 19, 2008 (8:01 pm)
First of all for all you novice boys and girls athat love your Hitler nitemares........Fuel pumps may be whining but that doesn't mean they are working. If you have run out of gas often you placed a twisted amt of stress on a pump that only functions in liquid(that would be gas)the act of running the pump dry kills the life of the unit and can also burn out the pulsator pump in the tank. Both of these units have to work together and can kill each other if one quits or if both are fed a diet of empty fuel tanks now and then. A bad accumulator or loose fuel pump fuse can also cause problems as do o- rings at the injector sites that might be leaking old or shrinking from age!.....All of these areas need to be addressed be fore you think of anything else!
#53 of 273 Re: Rough Idle and stalls [glevien]
Jan 19, 2008 (8:11 pm)
Check the following...Vacume lines, warm up valve, frequency valve, o-ring injectors and the actual injector,fuse box pins and the fuses, loose fuel relay, ground wire from battery, all wires to and from the coil. test the coil for function( if you have a strong steady flashing pulse on a timing gun, its good). Be sure you check the entire Digifant Electrical system from the Halls sender on the distributor to the TCI module on the fire wall of the car. It sits on top of the Brain( That would be your ECCS unit......short for electronic computer command system!
Jan 19, 2008 (8:27 pm)
BE absolutely sure you prime the main chassis pump by reconnecting the harness to the pump and turning the key to the on position for 1 to 2 min. Remember you have to disconnect the harness from the main pump to relieve pressure before removing it . By priming the pump, you fill it completely before you tell it to pump gas with ignition! Every thing works with 60-80 psi or nothing works and the car won't run. This is also a system that has to have a tight vacume across all lines....no leaks or pinched hoses, do not disconnet the tach for any reason as some bone headed mechanics I've know , did that and disabled several functions that are vital for proper engine performance! These cars will throw 1 or many problems at you all at once! Keep a cool head and go step by step....then if all else fails, burn it , blow it up, pay some one to make it disappear,trade in won't work...dealers don't take VW's in trade...because they know these cars, and they don't want your problem!
#55 of 273 Re: Fuel pumps [jonyjetta]
Jan 20, 2008 (4:43 am)
dealers don't take VW's in trade
Give me a break with the VW hate. Somehow dealers do have used VWs for sale (I wonder where they get them) and generally are asking higher prices for them than a lot of other used cars.
#56 of 273 having some issues!!!
Jan 22, 2008 (3:28 pm)
K-so i have a 99 jetta wolfsburg edition and i love my car...i just turned 220K on the odometer and i'm starting to have some issues and i'm not sure where to begin troubleshooting. all the shops look at me like i'm retarded when i try to tell them whats wrong so maybe someone in here can tell me whats up. first of all, i am having the same issues, almost exactly as diyer (posted jan 6) as far as starting issues and driving thru puddles. it just dies when water splashes up in the motor, and just yesterday it started getting difficult to start. it will crank, but the motor wont catch. once it finally does, i have no issues till it sits for a few hours.
the second issue is an engine stutter on hard acclerations. i don't know if its fuel injectors or sensors or air intake or what. i know for a fact my cat conv needs replaced cause it has fallen apart, but i'm not sure if that would cause those probs.
anyone have any ideas?
#57 of 273 jetta wont start....absolutely nothing!
Jan 22, 2008 (10:02 pm)
I have had my 98 jetta gls for four years now. the entire time i have been dealing with it randomly not starting. i cant figure out if it is the heat or cold. i have been in the nw and texas. Sometimes i will hear a click sometimes not. it usually starts after twenty minutes or so but other times it wont start for days. i have replaced the ignition switch but that did not seem to help. I have tried jumping it and that doesnt work. i have tried hammering on the starter and that didnt work. Please! any suggestions would be wonderful!
#58 of 273 2007 jetta won't start
May 28, 2008 (7:52 pm)
i love my 2007 jetta and a few times recently it will just not start. The battery is good. today i came home from work was going to leave again to go to the dog park and it would not start. i have lights, radio, air conditioning will come on but it will not start. Tomorrow if it will not start it will be towed to the dealership. However,
i have read similar problems in this forum. Now I have to say that after having
the battery check I did mention to my mechanic friend that the key was really hot.
So I am thinking this is a starter problem. Anybody have an idea???
#59 of 273 Re: 2007 jetta won't start [tbirchett]
May 28, 2008 (8:29 pm)
I havent felt the key when i pull it out but i will take not next time it happens. However I have discovered that when it wont start...if i hold the key all the way in the 'on' position then open and slam my door really hard it will start. The car oriented people in my family say its a bad starter that is faulty in nature. Hope it works for ya
#60 of 273 Re: 2007 jetta won't start [moore0124]
May 29, 2008 (4:09 am)
You proably have a short some where in the harness