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Jetta doesn't start after visiting gas station.

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Jetta doesn't start after visiting gas station.

Old 07-22-11, 12:43 PM
  #26  
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Cause and effect - gas station = won't start. Simple solution, don't take it to the gas station.

1) Or, does it not start because the tank is full? (test that by just filling the tank half full and see if it starts)

2) Is it because the engine is already warm when trying to restart? (easy to test - drive somewhere, turn off engine, wait 5 minutes and try to start)

3) Or, maybe the act of adding gas stirs up some gunk in the fuel system?
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Old 07-22-11, 12:48 PM
  #27  
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Drive the p.o.s. back to Mexico and see if the mechanic will warranty his work.
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Old 07-22-11, 12:52 PM
  #28  
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Originally Posted by ArtM View Post
Cause and effect - gas station = won't start. Simple solution, don't take it to the gas station.

1) Or, does it not start because the tank is full? (test that by just filling the tank half full and see if it starts)

2) Is it because the engine is already warm when trying to restart? (easy to test - drive somewhere, turn off engine, wait 5 minutes and try to start)

3) Or, maybe the act of adding gas stirs up some gunk in the fuel system?
(4) Her ex-boyfriend did a wiz fill-up into the gas filler port of the car.
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Old 07-22-11, 12:54 PM
  #29  
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My Passat wagon had exactly the same problem. Check the Evap Purge Valve. I'm surprised you don't have a check engine light. It is a Jetta after all ;-)
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Old 07-22-11, 04:15 PM
  #30  
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Originally Posted by RubenX View Post
+1

I'll asume it fuel injected as opposed to carburated? (Rube made up a new word here...lol)
Carburated is a word you don't hear much anymore, but used to be pretty common. Now get off my lawn!
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Old 07-22-11, 05:07 PM
  #31  
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Fuel pump.

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Old 07-22-11, 06:33 PM
  #32  
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I say it is the muffler bearings.
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Old 07-22-11, 08:30 PM
  #33  
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Old 07-22-11, 08:36 PM
  #34  
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Originally Posted by Ultraslide View Post
My Passat wagon had exactly the same problem. Check the Evap Purge Valve. I'm surprised you don't have a check engine light. It is a Jetta after all ;-)
I say over filling the tank, getting raw fuel in the vapor canister. New cars, injected need an
air space in the tank for the emissions system to operate properly.
Stop filling the tank when the nozzle clicks off.

Or your flux capacitor is shot. Check voltage, should be about 1.7899 million. Give ro
take a .0000000001 volt.
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Old 07-23-11, 05:18 AM
  #35  
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Fuel tank vent valve.
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Old 07-24-11, 11:03 AM
  #36  
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Originally Posted by noise boy View Post
Could be the Idle Air Control failing, the IAC takes the place of the old idle screw on a carb, it essentially is the air bleed past the throttle blade.
This, I've had the exact same issue on two other cars. The IAC in my Ford (Mazda) had a thermostat component which over-rode the electronic side once it jammed up. The car was fine cold, but never restarted hot, which was almost always at gas stations. It could be taken apart and cleaned out, at which point it worked again. The GM on the other hand had a motor that had gone bad, and could not just be cleaned out. Note that some cars (like Ford) have a coating on the intake that will dissolve if you use intake cleaner on it. Unfortunately while it was a $40 part on the GM, it looks like a $250 part for your car. It might be worth trying to clean the carbon out of it. Also, a lot of these have an adjustment screw on the back of them. Some web pages will encourage you to drive this in until the other end pops out. Don't do this. If you do it will be stuck forever open.
The reason it starts (and idles) while barely holding the accelerator pedal down is that you are replacing the small air gap path through the IAC with a similar small path past your throttle plate. After a couple minutes the car is warmed up enough that the mechanical side of the IAC can move again and you're ok.
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Old 07-24-11, 11:12 PM
  #37  
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Originally Posted by BHOFM View Post
I say over filling the tank, getting raw fuel in the vapor canister. New cars, injected need an
air space in the tank for the emissions system to operate properly.
Stop filling the tank when the nozzle clicks off.

Or your flux capacitor is shot. Check voltage, should be about 1.7899 million. Give ro
take a .0000000001 volt.
The VW flux capacitor is $985 for that model car.
He might as well scrap the car and girlfriend.
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Old 07-24-11, 11:17 PM
  #38  
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Originally Posted by no motor? View Post
Carburated is a word you don't hear much anymore, but used to be pretty common. Now get off my lawn!
They can,t grow a lawn down there,just sand and a few green weeds.
We would have nothing to yell at the kids during retirement years.
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Old 07-24-11, 11:34 PM
  #39  
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Originally Posted by jdon View Post
Fuel tank vent valve.
How long has it been since you replaced either the gas pump, gas filter or PVC valve? Could be one of these.
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Old 07-25-11, 08:07 AM
  #40  
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Thanks for the helpful replies -- I didn't expect this many. My attention as been diverted from the Jetta's problem. I've learned recently:
1) If you're able to fix computers, keep it to yourself.
2) If you're able to fix cars, keep it yourself.
3) If you've ever been willing to help someone move, keep it to yourself.


I'm going to research this EVAP canister/purge valve system. I think there's a way to bypass it, which should at least indicate whether or not it's the culprit.
I'll check fuel pressure. I think the fuel pump is okay, but I'm checking it just the same. I'll replace the fuel filter; the car is in need of maintenance anyways.
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Old 07-25-11, 10:25 AM
  #41  
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You're welcome.
We're always here to help till her next boyfriend takes over the Jetta repairs.
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Old 07-25-11, 11:10 AM
  #42  
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Originally Posted by phantomcow2 View Post
Thanks for the helpful replies -- I didn't expect this many. My attention as been diverted from the Jetta's problem. I've learned recently:
1) If you're able to fix computers, keep it to yourself.
2) If you're able to fix cars, keep it yourself.
3) If you've ever been willing to help someone move, keep it to yourself.
None of these are what I would consider rocket science. In fact, none of these are what I would consider "Foo Science".
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Old 07-25-11, 12:04 PM
  #43  
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Originally Posted by bigbenaugust View Post
None of these are what I would consider rocket science. In fact, none of these are what I would consider "Foo Science".
Are you implying "Foo Science" is a lesser science by smaller minds?
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Old 07-25-11, 12:37 PM
  #44  
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Originally Posted by bigbenaugust View Post
None of these are what I would consider rocket science. In fact, none of these are what I would consider "Foo Science".
I don't know what your point is. Mine is that you should keep it to yourself because everybody and their mother will ask for your help.
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Old 07-25-11, 03:16 PM
  #45  
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Old 07-25-11, 03:33 PM
  #46  
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Originally Posted by spry View Post
Are you implying "Foo Science" is a lesser science by smaller minds?
No, I am implying that Foo Science is a lesser science by larger minds. It's very complicated.
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Old 07-25-11, 04:29 PM
  #47  
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I can't say what Foo Science is or even if it exists...

But I'd know it if I saw it
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Old 07-25-11, 04:53 PM
  #48  
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Take out the old fuel filter, put it in another car, toss out the Jetta. Plan B, drive it 150 mph for an hour to clean out the carbon. Hope this helps.
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Old 07-25-11, 05:23 PM
  #49  
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Originally Posted by StupidlyBrave View Post
I can't say what Foo Science is or even if it exists...

But I'd know it if I saw it
I've seen it. it was gamma coloured.
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Old 07-25-11, 05:35 PM
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Too bad your not in socal... I have a VAG Com cable that scans any Volkswagen Auto Group owned car. VW, Audi, Bugatti, Lamborghini, Spyker, well you get the idea... Basically its the same scanner as the $15k one the dealers use to diagnose cars and will scan/do WAY more than a basic OBDII scan will tell you....

Look for someone in your area with a VAG com... not hard VWVortex.com
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