Question about 2004 Volkswagen Jetta

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MIL is on in my 2004 Jetta

The car is running rough (lovely vibrations) in Idle and when driving. I am also burning more gas. The MIL indicator stays on or blinks. I think my air/gas mixture is off but i cant seem to pinpoint the problem.

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Sounds like a coil pack failure,get it code read,your mil is flashing because its a cat damaging misfire !!

Posted on Jan 25, 2009

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2004 liberty 107000 miles. Engine runs rough at 2000-2500 RPM causing steering wheel and gas pedal vibration. plugs due to be changed.what else could cause this rough engine


I think you are on the right track with a tune up. Replace the wires, air filter and oil as well. I also would run a cleaner through the fuel lines. An STP or a Lucas would be better.

Dec 12, 2015 | Cars & Trucks

1 Answer

Car wont idle


There re few possibilities that can cause no idle issues.To troubleshoot the issue help links are provided below.Click the link below:---
Idle Problem? http://whatisbyme.blogspot.in/2012/05/2001toyota-corolla-idle-problem.html
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Idles rough and quits when gas pedal is pressed less? http://technoanswers.blogspot.in/2012/01/1999-ford-f-150-idles-rough-and-quits.html-----------
Stumbling and stalling at idle after engine rebuild? http://schematicsdiagram.blogspot.in/2012/03/stumbling-and-stalling-at-idle-after.html

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Cooling fan Shuts OFF and Idle Drops? http://howtobyme.blogspot.in/2012/05/toyota-celica-cooling-fan-shuts-off-and.html

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Rough Idle and Vibration? http://whatisbyme.blogspot.in/2012/05/2006-ford-f150-rough-idle-and-vibration.html

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Steering Wheel Vibrates at Idle? http://whatisbyme.blogspot.in/2012/05/1993-toyota-corolla-steering-wheel.html

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Runs Fine But Idle Is Low? http://whatisbyme.blogspot.in/2012/05/2004-toyota-highlander-runs-fine-but.html

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Vehicle Will not hold Idle? http://whatisbyme.blogspot.in/2012/05/2003-lexus-es300-vehicle-will-not-hold.html

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Engine Idles Rough and Dies? http://whatisbyme.blogspot.in/2012/05/1994-lexus-es300-engine-idles-rough-and.html

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This will help.
Thanks.

Jul 17, 2012 | Cars & Trucks

1 Answer

Check engine light on, vibration at idle


Generally, the problem is in the emissions or something that is affecting the effectiveness of the emissions, but other causes can trigger the light to come on, too. To determine the cause, the vehicle will need to be taken to AutoZone or a shop that has an OBD2 scanner, or for 1995 and earlier models, an OBD1 scanner, While a scanner will not give you the magic answer, it will give you a code that narrows down the problem area.
Some specific causes for the light to be on are:
Gas cap left off, not tightened, not installed correctly, or needs to be replaced.
02 sensor.
Engine misfire - error might clear itself after 3 complete warm-up cycles; not restarts, but warm-ups.
At start up for a bulb check - Should not stay on.
Details here: http://www.chinasinoy.com/service/why-would-a-check-engine-light-be-on-62.html

Car rough idling causes
misfiring engine is among the most common causes of a rough idle. You may notice your car idling roughly when it's in "Park" or when you're driving it and stop at a stoplight. A rough idle can be caused by damaged spark plugs or spark plug wires or a burned-out valve. It's important to address the cause as soon as possible to avoid potentially damaging the engine. Engine repairs are almost always expensive.
Learn more here:
http://www.chinasinoy.com/service/car-rough-idling-causes-and-how-to-fix-it-108.html

Hope this helpful.
Best regards.

Oct 12, 2011 | 2004 GMC Envoy

1 Answer

2004 Jetta sedan, 1.8 TDI, about 38000 miles, manual transmission. Always use premium gas (91 octane or above) from name-brand stations. Last serviced in Oct 2010 -- oil change, new tires, new brakes...


You use premium gas in a TDI? Run that by me again? A TDI is a diesel engine car. What don't I understand here? I'm not being a smart __s but this just does not make sense. If you have put gasoline in a TDI, DO NOT DRIVE IT. Tow it to a dealer.

Jan 03, 2011 | Volkswagen Jetta Cars & Trucks

2 Answers

Rough idle when placed in drive. 04 optima


If you have a rough vibration at idle when in D and not when in P, it may be due to the motor mounts. Even one that has gone bad will cause a vibration at idle when in Drive. I was able to isolate the problem by disconnecting the transmission mount under the airbox and suspending the transmission while i started the engine and put it in Drive. When i did that the vibration went away.
When i reinstalled the mount it came back. My problem is the transmission motor mount under the airbox.

Jan 03, 2010 | 2004 Kia Optima

2 Answers

Vibrations While Idle and smoke issue!


2002 a4 try fuel cleaner first, see how that goes after driveing for a while,,,the same goes for the 200 a4,, then we work from there

Aug 12, 2009 | 2004 Audi A4

1 Answer

DTC P0300, P0302, P0171, PO506


hey man i have the same problem... did you fix it.. i need help please email me at carlos_42611@yahoo.com if you have any info!

Mar 15, 2009 | 2004 Mazda RX-8

1 Answer

01 VW Jetta Vibration Problem


Check the motor mounts. They might be worn or loose which can cause vibration felt when the engine is reved up or running at higher rpms than at idle.

Jan 13, 2009 | 2004 Volkswagen Jetta

1 Answer

Malfunction Indicator Lamp (MIL)


I had the samething happen to my Jetta. I took it to the dealer and nothing was wrong.
I would think it's safe to drive until Monday when the VW shop opens.
My 2 cents

Jun 14, 2008 | 2007 Volkswagen GTI

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