1999 New Jetta GL running rough until warm

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jhutchcraft@gmail.com - 25 Jun 2008 02:15 GMT

He guys, got an issue I can't fix on my 99 Jetta. The car spits,
sputters, and hesitates when the gas pedal is pushed. However, 95% of
the problem goes away once the car is warmed up. I've replaced the
plugs and wires, cleaned the K&N air fliter, no dice. Any ideas
before I take it to the dealership, and most likely get hammered in
the wallet? It idles fine, so I don't know if it is a fuel problem or
not. Thanks.

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dave AKA vwdoc1 - 25 Jun 2008 04:19 GMT

wires would lead me to believe that it is not a 1.8t
A GL might mean a 2.0l engine and not a VR6

Maybe Coolant Temperature Sensor.
Or Ign coil is cracking (common issue).

Engine Check Light on? If not maybe it is the CTS
A vag-com tool might help. ;-)

> He guys, got an issue I can't fix on my 99 Jetta. The car spits,
> sputters, and hesitates when the gas pedal is pushed. However, 95% of
[quoted text clipped - 3 lines]
> the wallet? It idles fine, so I don't know if it is a fuel problem or
> not. Thanks.

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jhutchcraft@gmail.com - 25 Jun 2008 12:12 GMT

On Jun 24, 11:19 pm, "dave AKA vwdoc1"
<vwdoc1nos...@pleasehotmail.com> wrote:

> wires would lead me to believe that it is not a 1.8t
> A GL might mean a 2.0l engine and not a VR6
[quoted text clipped - 20 lines]
>
> - Show quoted text -

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dave AKA vwdoc1 - 25 Jun 2008 14:20 GMT

If you have the Bentley (ohm specifications) you can check your CTS with a
Volt Ohm Meter, if you don't have a vag-com tool.

Not sure if you have the late '99 with the coil pack on the engine block, or
the early '99 with just an ign coil by the brake master. I think this year
has a split and if you tell us the Engine Code, that might help. ;-)

The early coil usually cracks near the wire terminal. I ONLY use the ones
from the dealer since I have seen almost all of the aftermarket ones fail
anywhere from 1 week to 1 year of running time.
Those later ign coils crack everywhere and usually are effected by moisture.
So to test yours, run your engine until it runs smooth and then mist it with
water. Report your findings. <g>

Might be fuel injector seals at the intake manifold which can be tested with
some carb cleaner spray there watching rpm changes.
A little SeaFoam cleaner in the gas tank shouldn't hurt either! <g>

On Jun 24, 11:19 pm, "dave AKA vwdoc1"
<vwdoc1nos...@pleasehotmail.com> wrote:

> wires would lead me to believe that it is not a 1.8t
> A GL might mean a 2.0l engine and not a VR6
[quoted text clipped - 21 lines]
>
> - Show quoted text -

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