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Volkswagen Jetta Starting and Stalling Issues



  • iab01iab01 Posts: 1
    I have a 2011 Tdi sportwagen and i have experienced the same issue with the hesitation but none of the other issues. The service advisor said it happens to DSG engines...have you heard any solutions?
  • I have a 2010 TDI w manual transmission, purchased in Dec. 2010. It is now a year old with 20,000 miles and in spite of multiple reports to the dealer, they cannot find a reason for the hesitation and stalling, and, of course, it does not do it on a test drive. The car "hesitates", like it is missing - it does not feel like a transmission slip, and I have been driving a diesel Jetta since 1998 (put 330,000 miles on it!) and a diesel Rabbit before that. It is not my skills with a stick transmission. The problem is inconsistent and the dealer is clueless. When the car was new, it was usually on a cold start, usually within the first 5-20 miles or so, but not always. It also happens out of the blue on the freeway and most concerning, it has stalled out completely in a busy intersection - TWICE - really scary. My daughter bought an identical car three days after I did and hers does it too!! I just had my 20K service, where they did some recall thing to shield the fuel line, and the car did its hesitation thing within a block of the dealership, so I brought it right back so they could put it on the machine and finally diagnose this probem... They reported they found nothing. They kept it and put the super VW computer on it and linked up to the head office - they again found nothing. They have suggested I only buy Chevron fuel, blaming the problem on bad fuel, which is nonsense. The fuel in CA is heavily regulated and screened, I buy my fuel from name-brand sources, and there is no correlation between the source of the fuel and the hesitation. I called VW America at the suggestion of the dealer, and VW has suggested I take it to a different dealer - big help, the next nearest dealer is over an hour away. VW America tells me until they can identify a problem, they cannot do anything... I am heading to the Bureau of Automotive Repair and Consumer Affairs, and notifying my insurance company. I am also lodging a formal written complaint with the dealership's management. Has anybody had this problem and had it diagnosed and repaired successfully?? Love to hear from you!!
  • I just bought a new 2012 Jetta TDI and i had it 10 days before the ECM went out. After 4 days of being in the shop waiting on the part, they fixed it and also did a recall on the car and fixed the window switch. Picked it up Friday night and Saturday night the engine wouldn't start again. I tried several times and thought it would have to be towed again. I waited 15 minutes and tried turning the key back and forth in the ignition cylinder and it seemed to reset the onboard computer to allow it to start and not show the service engine soon light. It is running a little rough. Has anyone else had this problem? :lemon:
  • My Jetta used to stall such as above and also hesitated. Ignition coils was my culprit.
  • bpeeblesbpeebles Posts: 4,085
    Mr smithap - A diesel engine does not have ignitors. It is a compression-ignition engine.

    Since there is no ignition-system on a diesel engine, there is only 2 ways it can 'stall'
    1) No air
    2) No fuel

    To lose air, since there is no throttlebody, the only way that can happen is if the overrun-protector somehow closes.

    To lose fuel, there are several ways this can happen and is most likely the reason a diesel engine stalls out.

    Using logic, I have pretty much narrowed down the problem.
  • angelitojettaangelitojetta Posts: 2
    edited December 2011
    My 1999.5 jetta with a 191,000 miles on it 2.0L started acting up. The light for the temp will go on the code came back with a problem with the cooling system when on the freeway the engine will begin to cool and the beeping will start over again witch i find strange cuz ive never had a car begin to cool down while on the freeway and its already warmed up all the way. Today before i went to school the car would start and turn off right away so i started it up again and reved it up till it stayed on but the rpm needle was bouncing like it wanted to turn off again any ideas on what it could be? My chk engine light also came on yesterday auto zone said the code came back for a pedal positioning sensor but idk . car has also been feeling heavy when driving, when i let go of the gas a bit and reapply pressure it jolts forward and when im in 3rd geer and the rpm is under 2000 it feels like it struggles to gain speed.
  • bpeeblesbpeebles Posts: 4,085
    edited December 2011
    Your 1999.5 was KNOWN for having a faulty coolant-temperature-sensor (CTS). In fact VW changed the design of it to be more reliable.

    The CTS on the 2.0L engine is VERY easy to change. First, you should open the hood and look at it. The new-improved one is GREEEN. If yours is not green, then replace it.

    It is trivial to replace, I changed the CTS on my daughters 2001 2.0L in the dark while she held a flashlight. It took about 10 minutes.

    The CTS is under $20 including O-ring and spare clip (incase you break the existing one)

    Of course, troubleshooting a problem online has inherent inaccuracies. Your problem may be something else.
  • Hi all, I'm new to this site and new to owning a Jetta. I bought it a week ago and am very concerned (especially after reading some of the posts) about the hesitation when I'm trying to start the car. It usually happens in the morning when I am going to work and in the afternoon when I start it up to come home from work. Sometimes it gives out completely and I have to restart it. It's usually fine after the second start. It's a automatic with the DSG (Direct Shift Gearbox) although I don't have much trouble once it's started, I have noticed when I put it in reverse, and take my foot of the break, there is a couple second delay before it starts moving.

    At this point, I'm wondering if I should just have the dealer buy the car back. I LOVE it otherwise and am so disappointed I'm having these issues but am worried about it leaving me sitting. Is this going to be one of those situations that I'm constantly having to get the car looked at, worked on, etc.? Suggestions, feedback, advice? Thanks so much!!!
  • Ok I have decided to let you know what has happened. I chickened out with cleaning the mass air flow really worried that I may damage the piece. But what I did do that weekend was replace the engine air filter and added a bottle of fuel system cleaner. And the crazy thing is for almost a month I had no problems at all with starting up the car. But alas, it has started to act up again. Now it's not happening as much as it did before but I have a thought that it will start to become a daily occurrence again. After doing some more reading I'm thinking maybe the problem is something with the fuel intake or whatever it is that regulates the fuel upon startup of the car? Also that fuel system cleaner did improve my gas mileage noticably. Strange that after start up the car drives like a dream. If only I could figure out the starting problem.
  • bpeeblesbpeebles Posts: 4,085
    The fact that adding "fuel system cleaner" resulted in such a big difference in the way your 2002 2.0L runs indicates that your fuel-injectors may have been getting plugged up. (Just imagine how many gallons of gasoline have passed thru those tiny pinholes.)

    It would not hurt to try another treatment to see if you get any more improvement.

    Also, did you clean the snowscreen? (I clean mine annually and it is pretty plugged each time)
  • I have a 2002 VW Jetta. Whenever I slow down e.g. approach traffic lights, my engine just completely cuts out. It starts again with no problem. I’ve had the car for about 10 years. Lately, this used to happen about once a month but it now happens more often. The other day it cut out six times in the space of 10 minutes! Can any mechanics or people who know about cars out there give me some suggestions as to what the problem might be?

    My uncle has driven the car on road trips from Connecticut to Boston without any problems and has never faced this issue, it only happens to me. Could I be slamming on the brakes too abruptly or confusing the car?
  • bpeeblesbpeebles Posts: 4,085
    Without physically inspecting the car, diagnosis is difficult.

    MAF or ECT may be suspect.

    MAF = Mass AirFlow sensor
    ECT = Engine Coolant Temperature sensor.
  • Hi there, me and my hubby worked on our jetta for almost a week now trying to figure out why it was overheating.First we replaced some hoses/connectors, then the heater core, then the thermostat, and last but not least the water pump... which was a total b***h to get to! We did remove the timing belt and made sure not to move any pulleys out of place to knock the timing off and after successfully replacing the water pump, we put it all back together to only discover that now the car wont even turn over! What else could have possilby went wrong(was going throught our heads/thoughts of blowing it up!) Well needless to say we called our mechanic told him what we had repaired and he says we bent the valves because of the possibility the timing was knocked off and tryin to crank the car trashed the engine...but doesnt make sense because the pulleys and crankshaft arent even turning when we try to crank the car... can anyone give us some advice or possibly know any other reason the car isnt starting up? please we need your help!
  • bpeeblesbpeebles Posts: 4,085
    Replacing waterpump should be INCLUDED when the TimingBelt (TB) is replaced. (I personally use waterpump with BRASS impeller...not the cheap plastic ones) Also replace ALL the idler-pullies and tensionor-pullies.

    I agree with the mechanic... It is very likely that the TB is off by a tooth which can really mess up the engine. (bent valves...etc) You may get lucky and after re-timing the TB, your engine will be OK.

    I am concerned that you suggest that the pullies and TB are not even moving when you crank the engine... this is IMPOSSIBLE!! (The crankshaft pulley *is* the engine)

    As for the 'overheating' issue - did you perform a bleeddown test? This would tell you the condition of the head-gaskets. Leaking head-gasket can cause overheating.
  • Wow, you do have some good pointers there and me and my hubby did consider replacing some other parts but not until be figure out if the engine itself is worth saving. We did have a mobile machanic come look at it yesterday and he was stumped after adjusting the timing a little, checking the compression (which was good) and still couldnt get the car to start. We did have some fuel hoses that were worn but were able to salvage enought to try and see if that was the problem but still no luck.. Mechanic says the same thing we did, the car just isnt getting power like it should. Just dont know what the factor to this is! We've checked the spark wires/plugs, battery, alternator, starter,distributor cap, all fuses, relays, dont know what else to check.... were running out of ideas annd unfortunately taking it to a VW speacialist is just not in our budget right now. My husband messes with it everyday trying new things but nothing has happened yet..thanks for your help :)
  • Its been going off everytime we try to start up the car, even though the car doesnt start up the alarm goes off every 3 our of 5 times you try to start up the car... this is really odd and we dont know how to get the alarm to cut off permanently so we can work on the car! IF any knows how to locate the alram system on my car please let me know thanks :)
  • bpeeblesbpeebles Posts: 4,085
    If fuel-pump is not running, engine will behave as you mention. I dont know how the fuel-pump would suddenly quit but there is a "fuel pump relay" and a fuse.

    When you initially turn the key to ON (before cranking engine) you should hear the fuel-pump run for a few seconds.. .it is mounted INSIDE the gastank and sounds sorta like a 'rumble' near the rear of the vehicle.
  • thanks again! i will have him check that, oh yeah how about the ECU? would this cause the car to not turn over if its no good?
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