Thanks everyone for the feedback. I'm going to swap out the Engine Coolant Temp sensor on Monday. It only seems to do this after the engine is good and hot, so maybe we're on to something. at idle, the RPM guage will typically hum at 800... but when it's hot, it jumps to around 1,200 and down to 400...

Let's hope it's the ECT!

troy

"TonyJ" <"tonyjnospam at nospam visi.com"> wrote in message news:UtGdnZQDH8KAgDLVnZ2dnUVZ_tTinZ2d@posted.visi. ..


Dano58 wrote:
On Aug 20, 6:30 pm, "Shagster" <no...@nohow.com> wrote:
Hello,

My 2003 A4 Quattro (3.0) is starting to experience odd rough idle periods.
It will pur like a kitten sometimes, then other times appear like it's ready
to stall. Sometimes it won't start without cranking it over several times.
It has NEVER done any of those things before 85,000 miles. At 85k the plugs
were replaced and the mechanic actually broke one of the coils which he then
replaced.

Since the car has 93,000 miles on it today, I suspect one or more of the the
ignition coils mail be going bad.

I'm considering replacing all 6. Does anyone have any
experience/recommendations for me?

Troy, sounds like you already have a place to start - but just FYI,
the symptoms you describe were NOT what I had when 1 of my coil packs
went bad about 2 months ago. The car would start fine, and idled fine,
but would stutter badly when I put any load on the engine - it was
only running on 3 cylinders, basically. That type of failure would
throw a code, causing the CEL to light up.

Cost to replace one was $300-plus, so I did NOT consider just
replacing the other 3 at the same time!

Dan D
'04 A4 1.8Tq MT-6
Central NJ USA

I agree that it doesn't sound like a coil pack. More like a vacuum leak, failed MAF or coolant sensor.

Those dealers sure can get greedy.

Most on-line sources charge around $30 for an R series coil pack and changing them takes only a minute. I have seen them for as low as $23.

https://www.autohausaz.com/search/pr...gnition%20Coil

 

Can anyone help me find EXACTLY where this !#%#$^ thing is located on my
2003 A4 3.0l Quattro???? I cannot find it for the life of me! I need a
high res picture or something.



"Shagster" <noway@nohow.com> wrote in message
news:RN6dnYszmsaPBjHVnZ2dnUVZ_h-dnZ2d@ptd.net...
> Hello,
>
> My 2003 A4 Quattro (3.0) is starting to experience odd rough idle periods.
> It will pur like a kitten sometimes, then other times appear like it's
> ready to stall. Sometimes it won't start without cranking it over several
> times. It has NEVER done any of those things before 85,000 miles. At 85k
> the plugs were replaced and the mechanic actually broke one of the coils
> which he then replaced.
>
> Since the car has 93,000 miles on it today, I suspect one or more of the
> the ignition coils mail be going bad.
>
> I'm considering replacing all 6. Does anyone have any
> experience/recommendations for me?
>
> Troy
>
>

 

Do you have the repair manual?
AFAIK the ign coils should be directly on top of the spark plugs on your '03
V6 3.0.
http://www.germanautoparts.com/Audi/...lectrical/57/6
--
later,
(One out of many daves)
1997 Red A4 1.8tq auto

"Shagster" <noway@nohow.com> wrote in message
news:BfGdnfjEHaMFwS7VnZ2dnUVZ_jOdnZ2d@ptd.net...
> Can anyone help me find EXACTLY where this !#%#$^ thing is located on my
> 2003 A4 3.0l Quattro???? I cannot find it for the life of me! I need a
> high res picture or something.
>
>
>
> "Shagster" <noway@nohow.com> wrote in message
> news:RN6dnYszmsaPBjHVnZ2dnUVZ_h-dnZ2d@ptd.net...
>> Hello,
>>
>> My 2003 A4 Quattro (3.0) is starting to experience odd rough idle
>> periods. It will pur like a kitten sometimes, then other times appear
>> like it's ready to stall. Sometimes it won't start without cranking it
>> over several times. It has NEVER done any of those things before 85,000
>> miles. At 85k the plugs were replaced and the mechanic actually broke
>> one of the coils which he then replaced.
>>
>> Since the car has 93,000 miles on it today, I suspect one or more of the
>> the ignition coils mail be going bad.
>>
>> I'm considering replacing all 6. Does anyone have any
>> experience/recommendations for me?
>>
>> Troy
>>
>>
>
>

 

On Aug 20, 3:30 pm, "Shagster" <no...@nohow.com> wrote:
> Hello,
>
> My 2003 A4 Quattro (3.0) is starting to experience odd rough idle periods..
> It will pur like a kitten sometimes, then other times appear like it's ready
> to stall. Sometimes it won't start without cranking it over several times.
> It has NEVER done any of those things before 85,000 miles. At 85k the plugs
> were replaced and the mechanic actually broke one of the coils which he then
> replaced.
>
> Since the car has 93,000 miles on it today, I suspect one or more of the the
> ignition coils mail be going bad.
>
> I'm considering replacing all 6. Does anyone have any
> experience/recommendations for me?
>
> Troy

Hey Troy,

I had a similar concern with my 2004 A$ Audi Quattro 3.0 and I
subscribed to ALLDATAdiy.com and it has been very useful. I am handy
and like to do things myself and this subscription gives me diagnosis,
repair, TBSs, recalls and labor times. I hope you find it useful -
it's pretty cheap considering the information comes directly from the
manufacturer.

Check it out - I copied the link below for you.

http://traffic.alldatadiy.com/cgi-bi...0-o4010-c66365

Andy Deil

 

On Aug 25, 10:37 pm, "dave AKA vwdoc1"
<vwdoc1nos...@pleasehotmail.com> wrote:
> Do you have the repair manual?
> AFAIK the ign coils should be directly on top of the spark plugs on your '03
> V6 3.0.http://www.germanautoparts.com/Audi/...lectrical/57/6
> --
> later,
> (One out of many daves)
> 1997 Red A4 1.8tq auto
>
> "Shagster" <no...@nohow.com> wrote in message
>
> news:BfGdnfjEHaMFwS7VnZ2dnUVZ_jOdnZ2d@ptd.net...
>
> > Can anyone help me find EXACTLY where this !#%#$^ thing is located on my
> > 2003 A4 3.0l Quattro???? I cannot find it for the life of me! I need a
> > high res picture or something.

Yeah, that's it, it sits on top of the spark plug and under the spark
plug wire.

Dan D
'04 A4 1.8Tq MT-6
Central NJ USA

 

On Aug 24, 10:10 pm, "Shagster" <no...@nohow.com> wrote:
> Thanks everyone for the feedback. I'm going to swap out the Engine Coolant Temp sensor on Monday. It only seems to do this after the engine isgood and hot, so maybe we're on to something. at idle, the RPM guage will typically hum at 800... but when it's hot, it jumps to around 1,200 and down to 400...
>
> Let's hope it's the ECT!
>
> troy
>
> "TonyJ" <"tonyjnospam at nospam visi.com"> wrote in messagenews:UtGdnZQDH8KAgDLVnZ2dnUVZ_tTinZ2d@poste d.visi...
>
> Dano58 wrote:
>
> On Aug 20, 6:30 pm, "Shagster" <no...@nohow.com> wrote:
> Hello,
>
> My 2003 A4 Quattro (3.0) is starting to experience odd rough idle periods..
> It will pur like a kitten sometimes, then other times appear like it's ready
> to stall. Sometimes it won't start without cranking it over several times.
> It has NEVER done any of those things before 85,000 miles. At 85k the plugs
> were replaced and the mechanic actually broke one of the coils which he then
> replaced.
>
> Since the car has 93,000 miles on it today, I suspect one or more of the the
> ignition coils mail be going bad.
>
> I'm considering replacing all 6. Does anyone have any
> experience/recommendations for me?

Has the timing belt been changed?

Dan D
'04 A4 1.8Tq MT-6
Central NJ USA

 

Not yet. Was planning to do it at 105k.


"Dano58" <dan.dibiase@gmail.com> wrote in message
news:2c9d4621-df19-4fb0-8a89-ef940ba12593@s50g2000hsb.googlegroups.com...
On Aug 24, 10:10 pm, "Shagster" <no...@nohow.com> wrote:
> Thanks everyone for the feedback. I'm going to swap out the Engine Coolant
> Temp sensor on Monday. It only seems to do this after the engine is good
> and hot, so maybe we're on to something. at idle, the RPM guage will
> typically hum at 800... but when it's hot, it jumps to around 1,200 and
> down to 400...
>
> Let's hope it's the ECT!
>
> troy
>
> "TonyJ" <"tonyjnospam at nospam visi.com"> wrote in
> messagenews:UtGdnZQDH8KAgDLVnZ2dnUVZ_tTinZ2d@poste d.visi...
>
> Dano58 wrote:
>
> On Aug 20, 6:30 pm, "Shagster" <no...@nohow.com> wrote:
> Hello,
>
> My 2003 A4 Quattro (3.0) is starting to experience odd rough idle periods.
> It will pur like a kitten sometimes, then other times appear like it's
> ready
> to stall. Sometimes it won't start without cranking it over several times.
> It has NEVER done any of those things before 85,000 miles. At 85k the
> plugs
> were replaced and the mechanic actually broke one of the coils which he
> then
> replaced.
>
> Since the car has 93,000 miles on it today, I suspect one or more of the
> the
> ignition coils mail be going bad.
>
> I'm considering replacing all 6. Does anyone have any
> experience/recommendations for me?

Has the timing belt been changed?

Dan D
'04 A4 1.8Tq MT-6
Central NJ USA